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Multi-Services Transport Application

1. Address C c Program Files Agilent OmniberxM doc z Go af a File Folder 1 relnates File Folder Acrobat gif 1KB GIF Image al E api chm 518KB Compiled HTML Help 1 Blani pat 5 681 KB Adobe Acrobat Doc 1 l IIDI EEE 00 Tc gt A amp User Guide Diagnostics Hide Back Forward Home Contents Index Search Favorites doc Oid relnotes etc Bie E E Tel Syntax Type Compiled HTML Help file Size 517 KB Useful Links quicktest Example Session E Tol Shell Interactive Control Type Definitions Quick Reference AgtTestController AgtOpticallnterface E AgtStatisticsLog E AgxmSettings B AgtX lt mSonet Transport O verheac FEA Anim amp dhGectionverhess Print Options Glossary Web Introduction to the API Overview You can control the tester programmatically through the application programming interface API This allows you to automate tests for example to e Run tests that would be too tedious or imprecise to do manually or repeatedly through the Graphical User Interface GUI e Integrate tests with larger test suites that access other test equipment and Systems Under Test Repeat tests for subsequent product builds 185 5 Remote Access If it is not Use Acrobat to read the PDF files which are also on the PC and CD e user_guide pdf N2X XM User Guide e installation_guide
2. Advanced Channel Configuration on page 93 To Set up Transmitter channels Up to 192 channels can be defined for the 10GHz ports 48 for 2 5GHz Each channel can be defined as selected or unselected Any unselected channels are set to Unequipped that is all payload and path overhead bytes are set to 00h but the pointer is set as per selected channels Selected channels contain a full Path Overhead POH and BER pattern Any change to the Transmitter structure will take effect with no intermediate states that is it is hitless to the structure of channels that are unchanged This applies to SPE VC structure not to payloads Physical Ell Channels 83 Patten E A Inject jf TOH F sTSPOH H vr Pon Transmitter Receiver E E 6c C se S15 bo S15 be STS 121 STS 121 STS 3c _ STS 3c STS 6c STS 3c STS 3c STS 6 Copy gt lt Copy Advanced Auto Discover User Guide 91 3 Getting Started gt To set up individual channels 1 Click on the Channels Setup tab 2 Position the display cursor on the desired channel then click the right mouse key and select from the choices given in the menu The choices offered are ones that are valid for the selected channel When you position the cursor over a channel a ToolTip box appears giving Transport and Path interface settings for the selected channel an example is
3. CO CoS CRC 11 Binary Coded Decimal Bit Error Rate Bit Error Rate Test Bit Interleaved Parity Bits Per Second Bipolar Violation Bipolar with 3 Zero Substitution Bipolar with 8 Zero Substitution Campus Area Network Channel Associated Signaling Category 5 unshielded twisted pair copper Cable Television Constant Bit Rate Consultative Committee for International Telephony and Telegraphy Common Channel Signaling Cell Delay Tolerance Cell Delay Variation Committee of European PTTs Coded Mark Inversion Central Office Class of Service Cyclic Redundancy Check 253 11 254 CSES CSMA CD CV L CV LFE CV P CV PFE CV S CV V CV VFE D D I DACS dB DCC DCS DDF DDN DSn DTMF DUT DWDM DXC Consecutive Severely Errored Seconds Carrier Sense Multiple Access with Collision Detection Line Code Violation also L BIP Line Far End Code Violation also REI L Synchronous Transport Signal Path Code Violation also P BIP Synchronous Transport Signal Path Far End Code Violation also REI P Section Code Violation also S BIP Virtual Tributary Path Code Violation also V BIP Virtual Tributary Far End Code Violation also REI V Drop and Insert Digital Access and Cross connect Switch Decibel Data Communications Channel Digital Cross connect Switch Digital Distribution Frame Digital Data Network Digital Signal Hierarchy Dual Tone Multi
4. Installation WARNIN If this instrument is not used as specified the protection provided by the equipment could be impaired This instrument must only be used in a normal condition in which all means of protection are intact Modules may become hot during use Do not touch any of the components on a card as you remove it from the chassis CAUTION This instrument is designed for use in Installation Category II and Pollution Degree 2 per IEC 61010 and 60664 respectively Before switching on this instrument ensure the supply voltage is in the specified range This instrument has an autoranging line voltage input ensure the supply voltage is within the specified range CAUTION CLASS 1 LASER PRODUCT Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure The laser classification label is located on the metallic top cover of each module adjacent to the serial number label Environmental Conditions For indoor use only User Guide Installation 1 Safety Symbols O De p pO User Guide The following symbols on the instrument and in the user documentation indicate precautions you should take to maintain safe operation of the instrument The Instruction Documentation Symbol The product is marked with this symbol when it is necessary for the user to refer to the instructions in the supplied documentation Thi
5. Receiver STS 6c STS 3 STS 3 STS 12c STS 24c STS 3c STS 6c STS 3 12c TS STS 6c STS 3 STS 1 STS 6c STS 3c_ STS 3c i Auto Discover gt To perform an auto discovery on a receiver input signal 1 Connect a suitable optical input signal to the N2X XM receiver RX PORT 1 port 2 Select the Channels Setup tab Select the Auto Discover button The receiver will quickly align its channels structure to that of the received input signal 4 If required you can now copy the receiver setup to the transmitter select the lt Copy button Set Up Receiver Payload Pattern The pattern type can be selected on a per channel basis each channel can be set to one of the following User Word The 16 bit word value is the same for all channels that contain a word pattern The Receiver 16 bit User word specification is identical to the Transmitter PRBS23 PRBS23 inverted The pattern is byte aligned to the SONET SDH frame but has no specified alignment to the frame The Receiver pattern can be inverted or non inverted This is selectable on a per channel basis 123 3 Getting Started Live mode When the pattern is set to Live no pattern measurements Pattern Sync Loss and bit errors are attempted for this channel Receiver PRBS23 e PRBS23 Word PRBS23 PRBS23 Live PRBS23 tive PPP wd aa PRES Sa User Word foooo foooo foooo foooo gt To set up the receiver pat
6. dhcpdnt dhcpd 1log DebugLevel dword 6 Number Of Interfaces dword 1 Interfaces 6 18 6 6 1 j Next modify an environment variable set the switch port s IP address and restart the test system 1 Reset the environment variable CM_ADDRESS to the new address This procedure varies depending on whether you have Windows 2000 for details see To set up an environment variable on page 203 Reset the IP address of the Ethernet port connecting the switch and test interfaces so that it uses the new IP address This procedure also varies depending on the operating system for details see To set a PC s IP addresses on page 199 You will be prompted to restart the PC Restart the PC This is when the Resource Manager obtains a new IP address for the interface connecting the controller to the switch Reboot each test module Do not use the Diagnostics Tool s Broadcast Reboot instead power each module down then up again Each device will obtain a new IP address in the new subnet range Use the Diagnostics Tool to verify that the new IP addresses are being used 169 5 Remote Access To set up a VNC server To install VNC VNC is now installed as an optional component along with the N2X XM software If it is not currently installed on the tester PC install it the same way you would install N2X XM software See To install upgrade software on page 190 Simply select VNC from the
7. 17to20 TC APId byte 3 OXXXXXXX 65 to68 TC APId byte 15 OXXXXXXxX 69 to72 TC APId byte 16 OXXXXXXX 73 to 76 TC RDI ODI and reserved see below N1 bit 7 Description N1 Bit 8 Description 73 Reserved default 0 TC RDI 74 ODI Reserved default 0 74 Reserved default 0 Reserved default 0 76 Reserved default 0 Reserved default 0 User Guide 305 11 Telecoms Concepts Lower Order VC n Path Overhead LO POH for VC 11 VC 12 or VC 2 306 The lower order path overhead LO POH bytes support the transmission of an SDH signal across the low order path of a network Byte Label Description V5 LP BIP This byte contains error analysis signal label and path Signal status information Label Bits 1 and 2 contain lower order path error analysis and Path BIP 2 Status Bits 5 6 and 7 contain signal label For more information see V5 bits 5 to 7 Signal Label on page 308 Bit 3 contains the Remote Error Indication LP REI Bit 4 contains the Remote Failure Indication LP RFI Bit 8 contains the Remote Defect Indication LP RDI Number of data bytes separating fields VC 11 25 VC 12 34 and VC 2 106 J2 Trail Trace Identifier The lower order trail trace identifier 16 byte frame including CRC7 supports the end to end monitoring of a lower order path Number of data bytes separating fields VC 11 25 VC 12 34 and VC 2 106 N2 LOTCM The lower order tandem connect
8. 18 Select any port that has SRV DIS flagged and view the Max Time Last Time and Count and results in the channel list window You can use the Port channel mask to quickly examine the results for a particular channel 19 Select Gating Stop when you wish to end the measurement You can deliberately invoke a protection switch in equipment under test carrying a PRBS by generating a burst of errors You can simulate a node failure by removing the Laser power from the transmission element User Guide 213 8 Measurements APS Measurements on multiple STS AU channels J7244A 45A Option 010 214 This test involves using one pair of ports to stimulate the system under test with a test pattern and monitor the system output An other set of ports is used to inject errors alarms in Thru Mode to force Path Protection Switch Events PORT 2 OmniBER XM L PORT 1 Working Path _ Optical Optical ___augpe s IN OUT OmniBER XM Test signal oo _ i Optical OUT Protection Path Optical IN pi VANES VANES To check switching thresholds by injecting STS HO path errors 1 Connect Port 1 and Port 2 of the N2X XM as shown in the diagram above Be aware of the safety factors involved before connecting disconnecting optical cables See Do not look into a Transmit laser on page 58 2 Select the Add Port button on the Toolbar and select the modules and ports you intend
9. 5 Remote Access 162 GUI access VNC remote GUI Virtual Network Computing VNC is a freely available product from AT amp T Research VNC allows a single user to access the controller PC s Windows desktop from a remote PC UNIX workstation Linux workstation or Macintosh VNC also supports remote control through web browsers VNC is suitable if only one user wants to control the tester at any given time If several users try to access the tester at the same time they will all see the same desktop and be competing for control of the mouse and keyboard You must install VNC software on the tester s controller PC and remote computer see To set up a VNC server on page 170 for the tester and To set up a VNC client on page 180 for remote computers DCOM remote GUI The Distributed Component Object Model DCOM is a built in Windows capability that allows PCs to control COM based applications on other PCs DCOM allows several remote users to launch separate remote instances of the tester GUI Each launches a separate test session on the tester and can select a different set of test port interfaces Thus users do not interfere with others sessions Note that unlike VNC DCOM does not allow remote access to non COM applications like the Diagnostics Tool You must install and use the tester software on the remote PC and thus the remote PC must be running Windows 2000 see To set up a DCOM server o
10. N2X Multi Services Transport Application User Guide oth Agilent Technologies Agilent N2X XM Multi Services Transport Application User Guide ee Agilent Technologies Notices 2004 Agilent Technologies UK Limited No part of this manual may be reproduced in any form or by any means including electronic storage and retrieval or transla tion into a foreign language without prior agreement and written consent from Agi lent Technologies Inc as governed by United States and international copyright laws Sales and Service Offices An up to date list of Agilent Offices is available through the Agilent Website at URL http www agilent com Manual Part Number J7241 90016 Edition First edition May 2004 Printed in UK Agilent Technologies UK Limited Data Networks Division South Queensferry West Lothian Scotland EH30 9TG Warranty The material contained in this doc ument is provided as is and is subject to being changed without notice in future editions Further to the maximum extent permitted by applicable law Agilent disclaims all warranties either express or implied with regard to this manual and any information contained herein including but not limited to the implied warranties of mer chantability and fitness for a par ticular purpose Agilent shall not be liable for errors or for incidental or consequential damages in connec tion with the furnishing use or performance of
11. Stuff column overwrite mode can be enabled In this mode the payload overwrites the Fixed Stuff columns in the SPE VC For AU3 stuff columns cannot be overwritten If you are using N2X XM with an OmniBER 718 and experience Bit errors or B3 errors on STS 1 operation Set Tx and Rx STS 1 bulk filled stuff column overwrite to ON To Copy Port Settings to other Ports Setup for Port 6501 1 Advanced Setup Copy Port Setup To To copy a ports setup to another port 1 Click on the Copy Port Setup To button The Copy Port Setup To dialog window displays the Current Port Setup and ports to which you can copy settings 2 Ifyou wish to copy the settings of the currently selected port to all the other ports listed in the dialog window choose Select All otherwise click on the box for each individual port as required 3 Click on the Advanced button to see a list of modes and settings that can be copied from port to port 4 If you have a mix of different rate modules ports to which you may wish to copy settings you are restricted to copying those of a similar rate i e all 2 5 Gb s or all 10 Gb s To change this select the Advanced button and switch off Rate User Guide Getting Started 3 Transmitter and Receiver Channels Setup The N2X XM user interface allows to quickly setup individual channels within the transmitter and receiver channel mask see To set up individual channels or re configure all of the channels see
12. e Green region correct power e Red high power There is also an indication of received Port optical power in the Port Selection window adjacent to the yellow Laser icon You can quickly check the received power for a port by selecting the port and viewing the legend in the Power field it will be U R under range OK high or damage 121 3 Getting Started To set up the Receiver interface gt To set up the receiver interface 1 Select the Physical tab 2 Set the Signal Standard and Rate as required 3 If your system has option 010 fitted you can switch VT TU Mode operation on see Instrument Setup and Use VT TU mode on page 141 for more detailed information To Set up Receiver channels Up to 192 channels can be defined for the 10GHz ports 48 for the 2 5 GHz Each channel can be defined as selected or unselected Measurements are only made on selected channels any unselected channels are ignored by the Receiver Receiver Auto Discovery The N2X XM receiver Auto Discover feature automatically detects the mixture of payload types at its input and configures its channel structure to match the incoming signal Configure transmitter channels You can also quickly set up the N2X XM transmitter channels settings by doing an auto discover on the input signal perhaps from equipment under test and then copying the receiver settings to the transmitter 122 User Guide User Guide Getting Started 3
13. e e 2 e Operator Maintenance on page 244 Optical Connector Cleaning on page 244 Optical Patch cord connectors on page 245 Storage and Shipment on page 246 This chapter provides information on cleaning optical connectors and module storage and shipment a Agilent Technologies 243 10 Operator Maintenance Operator Maintenance WARNIN WARNING NO OPERATOR SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL TO PREVENT ELECTRICAL SHOCK DO NOT REMOVE COVERS Maintenance that can be done by operators e Optical connector cleaning Optical Connector Cleaning Fibre optic connectors must be cleaned prior to making every optical connection This chapter details the equipment and the techniques to be used Equipment required Isopropyl Alcohol Lint free cloth Typically SWI400 from Automation Facilities Cleaning stick Typically Cletop NTT ME 2 5mm Compressed Air Typically Ambersil ARD 400 Alternative Cleaning cassette reel Cletop S Type A CAUTION Isopropyl alcohol IPA should be stored in a pump action solvent container designed to allow a small amount of alcohol to be dispensed on demand with a cap to prevent evaporation of the alcohol IPA should be stored and used only in a clean cool and ventilated area Inhalation of vapors and repeated or prolonged contact of the liquid with skin or clothing should be avoided Hands should be washed after use of IPA Do not touch
14. 001 Bridged 010 Bridged and switched O11 Not used 100 Not used 101 Not used 110 MS RDI 111 MS AIS User Guide 299 11 Telecoms Concepts Synchronization Status Messages S1 bits 5 to 8 S1 Bits 5 to 8 SDH synchronization quality level description 0000 Quality unknown 0001 Reserved 0010 G 811 0011 Reserved 0100 G 812 transit 0101 Reserved 0110 Reserved 0111 Reserved 1000 G 812 local 1001 Reserved 1010 Reserved 1011 Synchronous equipment timing source SETS 1100 Reserved 1101 Reserved 1110 Reserved 1111 Do not use for synchronization 300 User Guide Telecoms Concepts 11 Higher Order Path Overhead HO POH The higher order path overhead HO POH bytes support the transmission of an SDH signal across the high order path of a network Byte Label Description Ji B3 C2 Gl F2 H4 F3 Path Trace HP BIP Signal Label Path Status User Channel Position Indicator User Channel The first byte in the virtual container VC Its location is indicated by the AU pointer H1H2 Provides a higher order trail trace identifier 64 byte free format string or 16 frame including CRC7 Supports end to end monitoring of a higher order path Provides higher order path error monitoring The BIP 8 is calculated over all bits of the previous VC n The computed value is placed in the B3 byte before scrambling Higher order signal label indicates the content of
15. 2 666 06 OTU 1 4976 64 OC 96 STS 96 STM 32 9953 28 OC 192 STS 192 STM 64 10709 23 OTU 2 39 813 12 OC 768 STS 768 STM 256 43 018 41 OTU 3 User Guide 267 11 Telecoms Concepts Summary of Errors and Alarms Acronym Error Alarm AIS BIP IEC LOF LOM LOMF LOP LOP C AU LOP C LOS ODI OEI OOF PLM RAI Alarm Indication Signal Bit Interleaved Parity Incoming Error Count Loss of Frame Loss of Multiframe Loss of Pointer Loss of Concatenation Loss of Signal Outgoing Defect Indication Outgoing Error Indication Out of Frame Payload Label Mismatch Remote Alarm Indication Remote Defect Indication Remote Error Indication Remote Failure Indication Severely Errored Frame Trace Identifier Mismatch Unequipped 268 User Guide Telecoms Concepts 11 User Guide 269 11 Telecoms Concepts SONET Concepts For SONET reference information see e SONET STS 1 Frame Structure on page 271 e SONET Payload Structure on page 272 e SONET Overhead Bytes on page 273 270 User Guide User Guide Telecoms Concepts 11 SONET STS 1 Frame Structure The relationship between the various elements that make up a SONET STS 1 signal is shown in the following diagram 90 columns bytes ____ _ lt 87 columns bytes gt Section overhead SOH ao gt e QO lt lt 9 rows _ gt o lt Transport overhead TOH
16. 86 columns bytes gt STS path overhead STS POH 271 11 Telecoms Concepts SONET Payload Structure The payloads that can be carried in a SONET signal are outlined below e You can asynchronously map a framed unframed DS3 44 Mb s or E3 34 Mb s signal into a full STS 1 SPE or you can bulk fill the STS 1 SPE e You can transmit 28 VT1 5s 21 VT2s or 7 VT6s in aSTS 1 SPE The VTs are structured into 7 virtual tributary groups VT Groups within a STS 1 SPE Each VT group can contain 4 VT1 5s 3 VT 2s or 1 VT 6 e You can transmit concatenated payloads in SONET signals These types of payload reduce test times by testing the entire bandwidth in one go 52 Mbs 10 40 Ghi s STS 768 f e alk Filta 43C Bulk Filled i a 24c Bulk Filled f GFP LAPS STS 12c Bulk Fillad i SPE GFP LAPS STS 9c iil Bulk Filled SPE GFP LAPS li S5TS 6c Buk Filled i SPE GFP LAPS STS 230 Bulk Filled SPE GFP LAPS E4 Async x Bulk Filled am GFP LAPS a E3 Async Y DS3 Async Bulk Filled VT group oe E1 Asme N E1 Fost Byte Sync VT 15 Bulk Filled SPE DSI Async DS1 Float Byte Sync 272 User Guide Telecoms Concepts 11 SONET Overhead Bytes Four overheads are used to transport SONET signals across the spans of a network SONET digital cross connect vo system assembly divasam gt gt T Trioutary gt i A a SE af E D Section span
17. Connecting the System Controller Controller to switch Connect the Controller to the switch with a straight through LAN cable straight through En E7901 64210 or i acenee seen Eme switch _qeeseeverser A Crossover E7901 64212 CAUTION Tester uses 10 x x x subnet addresses The Ethernet port that connects the switch uses the IP address 10 0 0 1 8 A DHCP server on the Controller dynamically assigns each test port an IP address from this 10 x x x subnet range If 10 x x x addresses are also used in your test lab LAN or by a software application e g to connect to a VPN change the switch and test port addresses to avoid conflicts For complete details see To change the Tester s subnet IP Addresses on page 72 User Guide 49 1 Installation Connecting a rackmount Controller eso Bo EER aa 1 GEE 2 Steps 1 Connect the mouse keyboard and monitor Plug the cable connectors securely into the ports 2 Connect this 10 100 Mb s Ethernet port to a chassis or 10 100 Mb s port on the switch 3 Optional Connect this 10 100 Mb s Ethernet port to your LAN You can access the tester remotely and the tester can use shared network resources like file servers and printers You must supply your own LAN cable for this connection 4 Plug the controller and monitor into a power source 50 U
18. K2 Automatic Protection Switching APS Messages You can check network equipment ability to switch to a standby line to maintain service when a failure is detected Switching is controlled by Automatic Protection Switching APS messages controlled by the K1 and K2 bytes APS occurs when there is a signal failure signal degradation or in response to commands from a local terminal or remote network manager You can view the K1 K2 bytes as either Linear or Ring Note that the modules error add test function interacts with the setting of the K2 overhead byte If the RDI L and AIS L alarms are active any byte values generated by those features will override the value previously assigned to K2 For more information refer to Telecomm Concepts page 312 To generate an APS message 1 Select the TOH SOH tab 2 Click on the Edit K1 K2 button 105 3 Getting Started K1 K2 Automatic Protection Switching xj K1 0000 No Request y cooo Linear APS b1 b4 Binary b5 b8 C Ring APS K2 0000 fo 000 Reserved For Future Use 7 bl b4 b5 b6 b8 Binary OK Cancel 3 Set the Protocol to Ring or Linear APS 4 Set K1 bl b4 and b5 b8 as required 5 Set K2 b1 b4 b5 and b6 b8 as required 6 Select OK or Cancel to undo your selections Generating Synchronization Status Messages You can transmit synchronization status messages in bits 5 to 8 of the S1 byte For more information see Synchronizatio
19. Multi Rate Transceiver Modules Product Description J7244A 002 J7244A 010 J7245A 002 J7245A 010 OC 48 STM 16 multi rate transceiver module includes OC 12 STM 4 and OC 3 STM 1 capability dual port 2 x Tx Rx 1550nm Adds multi channel VT TU calability OC 48 STM 16 multi rate transceiver module includes OC 12 STM 4 and OC 3 STM 1 capability dual port 2 x Tx Rx 1310nm Adds multi channel VT TU calability 232 User Guide User Guide WARNIN Specifications 9 Calibration We recommend a 2 year calibration cycle Contact Agilent Technologies for assistance See To Contact us on page 17 Electrical Power AC Voltage 100 120V nominal Requirements 200 240V Frequency 50 60 Hz Power 230W typical 630W per chassis maximum LASER For your protection review all laser information given in this manual before installing or using the instrument CLASS 1 LASER PRODUCT This marking indicates that the radiant energy present in the instrument is non hazardous The product is a Class laser product in Europe and complies with the standard IEC 60825 1 1993 A1 1997 A2 2001 EN 60825 1 1993 A2 2001 Complies with 21 CFR 1040 10 and 1040 11 except for deviations pursuant to Laser Notice No 50 dated July 26 2001 To prevent exposure to hazardous laser radiation this product should not be disassembled Service personnel should not attempt to disassemble or repair the laser device
20. P 12 2 6 P 12 2 2 Ready Reboot module f AU00123457 10 0 0 75 10 128 0 75 AU00123458 10 0 0 25 10 128 0 25_ GbE 4 3 Ready AEE AU41185102 10 0 0 29 10 128 0 29 P 48 2 4 Ready AU00123459 10 0 0 57 OC 3c 12c STM 1 4cATM 2 101 Ready Show IP sdbesses AU00123414 10 0 0 113 DC 48c STM 16c POS 2 103 Ready AU4211870 10 0 0 114 OC 48c STM 16cPOS 2 104 Ready Upgrade chassis controllers 10001 O0 c0 95 e3 dc 0c 10 0 0 63 garl Robot 2znb1 znb2 znb Ready 00 c0 95 e4 bd 60 10 0 0 18 garl Robot fanb1 znb2 znb 10002 Locked w Steps Check that each module has a unique number Check that each module appears in the Ready state Check the system state If all modules are installed successfully it will say Ready If errors are reported follow any actions recommended 6 After fixing cabling problems or adding or removing modules click this button 7 Click this button to reboot a module This may clear a bad state Notes For help with this tool and troubleshooting module problems select Contents from the Diagnostic Tool s Help menu 7 Follow the instructions in the displayed online help If the modules are installed successfully close the Diagnostic Tool and review To check module hardware indicators The hardware indicators will also indicate success but you should familiarize yourself with them in the event there are problems later 54 User Guide User Guide Installation 1
21. applied during operation the chassis will lock to the first valid signal present If more than one clock signal is present at re boot the chassis will lock using the following order of preference Clock Input Port Clock Signal 50 Ohm BNC 10 MHz reference clock 100 Ohm Bantam 1 544 Mbs BITS User Guide Getting Started 3 Clock Input Port Clock Signal 75 Ohm BNC 2 048 Mbs MTS 75 Ohm BNC 2 048 MHz reference clock Siemens 3 pin 2 048 Mbs MTS Selecting Signal Scrambling gt To set signal scrambling for selected port 1 Select the Advanced Setup button Advanced Setup fe xj IV Tx Signal Scrambling IV Rx Signal Descrambling I TxSTS 1 bulk filled stuff column overwrite I Rx STS 1 bulk filled stuff column overwrite Analysis Enhanced RDI P Mode REI L Mode Tx and Rx 10G ports only IV Set on all valid ports OK Cancel Help 2 Click on the respective boxes to select or deselect Tx or Rx Signal Scrambling The SONET SDH signal can be scrambled de scrambled according to G707 GR253 network specifications 3 Set on all valid ports If this box is checked the N2X XM attempts to apply the features selected to all valid ports in the current session User Guide 89 3 Getting Started 90 Selecting STS 1 Bulk Filled Stuff Column Overwrite gt To select STS 1 bulk filled stuff column overwrite 1 Select the Advanced Setup button 2 Select Tx or Rx overwrite as required For STS 1 only
22. as a pair to an interface on the Device Under Test DUT This allows port based protocol exchanges Optical fibre cables You must supply your own optical cables Each test port has two separate female SC ports push cable connectors firmly into these ports For the best results use single mode fibers with single mode test ports and multimode fibers with multimode test ports The port types are as follows J7241A J7242A modules Wavelength Tx 1550 nm J7241A or 1310 nm J7242A Rx 1280 to 1580 nm 59 1 60 Installation RX PORT 1 TX PORT 1 2 RX PORT 1 2 WARNIN Fiber power output J7241A Min 5 dBm max 1 dBm Fiber power output J7242A Min 6 dBm max 1 dBm Connectivity Single mode Maximum input power 0 5 dBm Maximum input power damage level 3 dBm Minimum sensitivity 11 dBm 1310nm 14dBm 1550 nm Safety Classification Class 1 laser product 60825 1 1993 A1 1997 A2 2001 Connectivity Single mode J7244A J7245A modules Wavelength Tx 1310 nm J7244A or 1550 nm J7245A Rx 1250 to 1660 nm Fiber power output Min 5 dBm max 0 dBm 1310 nm Min 2 dBm max 3 dBm 1550 nm Connectivity Single mode Maximum input power 2 5 dBm Maximum input power damage level 4 dBm Minimum Sensitivity OC 3 24dBm OC12 24 dBm OC 48 20 dBm Safety Classification Class 1 laser product 60825 1 1993 A1 1997 A2 2001 Connectivity Multi mode Do n
23. by a test session Module Removal To avoid problems modules must only be removed from a chassis when that module is not allocated to a test session Removal of a module from a currently active test session will result in a script client abort failure which will terminate the session Note that removal of a module from a chassis does not compromise the Clock Event chain since this is handled entirely within the chassis The N2X XM chassis should not be used with empty slots Make sure that when removing a module or blanking plate that a replacement module or blanking plate is available nearby Module Insertion A module can be hot inserted into an N2X XM chassis at any time The module will go through it s boot process and identify itself to the Resource Manager The Resource Manager will allocate the module a number according to the chassis in which it sits and it s position within the chassis On completion of this process the module is available to be added to any pre existing or new test session as far as the rules regarding Clock Event lines allow Note that a re numbering operation requires that there are no test sessions running on the host controller User Guide Installation 1 Overview Installation Process q Plan your installation 2 Install the test equipment Do you need a switch How many ports and user sessions How many modules What are the power requirements Where to position test equipment
24. errored or alarmed channel simply double click the left mouse key to display the E A window This allows you to check the full set of alarm and error events for the selected channel Both port and channel measurements can be logged to a file on a per second basis along with a timestamp See To log events to a file on page 134 125 3 Getting Started Overview Tool Tip Window explained NT Tx ate Ax Rate Inject _ FH Overview eo EA E Counts GR 253 101 1 Zoom Current if ti LURE Paanan JODOOODOOOOB I SERA gooo SSCSC5 n2 BSSooooooooo Cmm VT Path VT Path 4 1 CV V BIP 4 2 CV V BIP 4 3 CV V BIP a CV V BIP Double click channel for more detail f If you move the cursor onto a channel a ToolTip window gives a display of current and historical errors It also gives the position of the channel currently selected the one your cursor is sitting over In VT mode the whole VT TUG group is also shown gt How to quickly find and identify errors 1 Select the Overview window 2 Determine whether you wish to view the chassis in the current session select Chassis View or view the ports select Port View Chassis view represents physical position port view allows more ports to be seen at a higher detail 3 If you have a large number of chassis ports in your current session you can use the slider control to adjust the resolution of the d
25. gt Programs gt VNC gt Run VNC Viewer 2 When prompted enter the tester PC s IP address or host name then the password you set up in To enable remote access on page 170 Re VNC server 15 35 167 39 z Use host display Cancel YNC Authentication x RE Session password meme __Lancel_ 3 When the tester PC s desktop appears launch and use the tester software as normal If you need to refresh the display right click the VNC title bar and select Request Screen Refresh 180 User Guide Remote Access 5 To control the tester via a web browser 1 On the remote computer launch a web browser 2 For the URL address enter http followed by the tester PC s IP address followed by the port number 5800 for example http 10 1 1 1 5800 3 When prompted enter the password you set up under To enable remote access on page 170 YNC Authentication xi 4 When the tester PC s desktop appears launch and use the tester software as normal User Guide 181 5 Remote Access To set up a DCOM client 182 To install the tester software Install the tester software on the remote computer as described fully in Chapter 4 Software Installation Upgrades Select e GUI Installation If you do not plan to use Demo mode This installation requires less disk space as described under System Requirements on page 188 e Full Installation If you plan to use Demo mode to simulate N2X X
26. mode Port and Channel Numbering Scheme on page 142 Setting up the VT TU PDH Transmit Receive Interface on page 143 Setting VT TU Pointer Bytes on page 148 Edit VT LO Path Overhead Bytes on page 150 Generating a J2 Path Trace Message on page 152 Viewing VT LO PDH Path Errors on page 153 Viewing VT LO PDH Alarms on page 153 Monitoring Received VT TU Path overhead bytes on page 154 Measuring Service Disruption in a PDH system on page 155 Detecting Path Routing Faults on page 156 This chapter describes how to set up the N2X XM J7244A 45A Option 010 for VT TU operation 5 Agilent Technologies 141 4 142 Instrument Setup and Use VT TU mode Port and Channel Numbering Scheme SONET LO Channel Numbering On the instrument GUI LO channels will be numbered according to the GR 253 VT numbering scheme This scheme numbers the constituent channels of an SONET STS signal based on VT groups There are 7 VT groups in an STS 1 and the VT channels within a VT group are numbered with a 2 digit scheme B A where B represents the VT group number and A represents the VT number within the group e VT1 5 channels in an STS 1 are numbered 1 1 through 7 4 e VT2 channels in an STS 1 are numbered 1 1 through 7 3 e VT3 channels in an STS 1 are numbered 1 1 through 7 2 e VT6 channels in an STS 1 are numbered 1 1 through 7 1 SDH LO Channel Numbering On the instrument GUI LO channels will be numb
27. pressing the spacebar see Quick Selections on next page Pattern page double click mouse or use the spacebar to cycle through pattern choices E A Inject page double click mouse or use the spacebar to Add or Remove channels from the mask VT POH LO POH page No double click action Overview page Double click mouse to go to the E A page then select appropriate channel E A page Double click mouse to go to Counts page and select required channel 70 User Guide User Guide Using the Graphical User Interface GUI 2 Quick Selections Press To perform this action Spacebar To toggle the state of the highlighted item for example Un Select UP DOWN ARROW To move highlight to previous or following line LEFT RIGHT ARROW To move highlight from left to right SHIFT UP DOWN ARROW Highlights all the channels between the selection point and the row above or below SHIFT LEFT RIGHT ARROW Highlights the channel to the left or right as well as the current selection Ctrl A Highlights all channels paths VTs TUs Home Highlights first channel path VT TU End Highlights last channel path VT TU Shift left mouse click Ctrl left mouse click Left mouse click Highlights all channels between the last selection and the current one Invert the highlight on the selected channel Highlight a single channel 71 2 Using the Graphical User Interface GUI 72 User Guide Agilent N2X XM User Guide
28. 198 User Guide 167 5 Remote Access To change the IP address of the switch card Important This may be required As described on page 165 the tester uses addresses from the subnet 10 x x x 8 for its test interfaces If 10 x x x addresses are also used in your test lab LAN or by a remote client e g connecting via a VPN you must change the addresses used by the tester s subnet Modify the controller s DHCP configuration file and system registry BX Exploring dhcpdnt OF x Fie Ea Vow Tonk Hep All Folders Contents of dhepdnt Click the program you want to use to open the file Desktop Bdoc If the program you want is not in the list click Other Bw Computer E dhcpd conf Description of conf files 2 Right click ee B dhepdlog Send To rT 7 DHCPD CONF i i g dhcpd reg EEE dhcpdnt F dhopdntere Cut select Open B Program Files Copy Choose the program you want to use With then a Asilent C 4 i RouterTester Create Shortcut select NOTEPAD E bin Delete _ z H elt Rename NSConf32 E H doc Properties E pbrush a H 7 IV Always use this program to open this file E td T o iects selected 472 bytes 7 Cancel Omer 14 In Windows Explorer select the DHCPDNT folder 6 dhcpd Notepad ioj x File Edit Search Help 3 Change the IP address in the DHCP Configuration File 4 places indicated Do not
29. 3 Getting Started To launch N2X XM on page 75 To exit and log out on page 76 Tool Bar Explained on page 78 Configure a session offline on page 81 To start a session and select modules and test ports on page 82 Setting up the Transmitter and Receiver Interface on page 85 To Copy Port Settings to other Ports on page 90 Transmitter and Receiver Channels Setup on page 91 Set Up Transmitter Payload Pattern on page 95 Add Errors or Alarms to the test pattern on page 96 Set up Transmitter TOH SOH on page 105 Edit Transmitter Path Overhead Bytes on page 113 Generating a J1 Path Trace Message on page 114 Overwrite Modes on page 117 Setting up the Receiver on page 121 To Monitor Ports for Errors or Alarms on page 125 Monitoring Receiver Overhead Bytes on page 128 Viewing Measurement Results on page 130 To log events to a file on page 134 Setting a Measurement Gating Period on page 137 Viewing Service Disruption Time on page 138 To close a session on page 139 Port and Channel Numbering Scheme on page 142 This chapter describes the basic tasks you need to complete in order to configure a test session Agilent Technologies 73 3 Getting Started 74 User Guide Getting Started 3 To launch N2X XM Windows Desktop On the Windows desktop double click this icon to launch the N2X XM application be N2x Launchpad Start Menu O
30. 3 Connect the test equipment 4 Power up the system Mewes tk 8 kn RST 2280880800088 a Qe es Sro 6 Start the software Agilent Technologies N2X Multi Services Transport User Guide 27 1 Installation Typical Configuration Connection to a chassis via a switch Switch F AasaaR EENE Chassis and Modules Daisy chain together and connect to the controller using a LAN switch 28 User Guide Installation 1 Step 1 Plan your installation User Guide Do you need a switch When assembling your N2X XM system you should use a switch if you have more than one piece of equipment in the configuration that you want to connect to the Controller It is recommended that you use a switch if your configuration has e one or more chassis You will need a second switch if you are using e An 8 port switch and have more than 7 chassis or e An 24 port switch and have more than 23 chassis The second switch can be daisy chained off the first one For information on how to daisy chain switches refer to Connecting the chassis or module to a switch How many ports and user sessions can your System Controller support The number of ports and user sessions either local or remote through the Terminal Server your Controller can support is determined by its available memory and CPU capacity The rules used to deter
31. 6 to 8 of the K2 byte contain MS RDI and MS AIS This byte is defined only for STM l 1la of a SDH frame For more information see Linear APS Messages on page 296 and Ring APS Messages on page 298 Provides a 576 kb s data communications channel DCC between multiplex section terminating equipment Used to carry network administration and maintenance information S1 bits 5 to 8 indicate which of the four levels of synchronization is being used at the transmit end of a multiplexer section span Multiplexer section remote error indication conveys the B2 errors detected by downstream equipment 294 User Guide User Guide Byte Label Telecoms Concepts 11 Description E2 Orderwire H1 toH3 AU Pointer Provides express orderwire channel for voice communication between Multiplex Section terminating equipment The payload pointer contained in the H1 and H2 bytes of the multiplex section overhead designates the location of the byte where the VC n begins The last ten bits bits 7 to 16 of H1H2 carry the pointer value 0 to 782 The H3 bytes is allocated for VC frequency justification purposes and can carry live information from a VC 4 when a negative pointer adjustment occurs 295 11 Telecoms Concepts Linear APS Messages ITU T G 783 Protection Switching Protocol K1 Bits 1 to4 1111 1110 1101 1100 1011 1010 1001 1000 0111 0110 0101 0100 0011 0010 0001 Cond
32. Channels tab and click on the Auto Discover button to configure the Receiver to the incoming signal 14 Select the Gating Setup button on the Toolbar and select Continuous To view service disruption time 15 Select the SRV DIS tab 16 The guard time which is used to define the end of an error burst can be set between 100ms and 1600ms in 1ms steps You can define it for All Ports in a session or for a Selected port only select the On selected port only box 17 Select the Port you configured as per Port 1 in the hook up diagram 18 Select the Guard Time Edit button and enter the required value 215 8 Measurements Set Warning Threshold 216 You can set a Warning Threshold any channels which have a service disruption time equal to or above your pre set threshold will be displayed red in color in the Port mask and in the VT LO Path Max Time and Last Time columns 19 Enter a Warning Threshold for port if required 20 Start a measurement select the Gating Start button 21 Verify error free reception of the PRBS test pattern select the Overview tab Chassis View and check for a red border or channels indicating errors Add Errors Alarms e Invoke a protection switch on a working section of the equipment under test that is transporting the PRBS or use the N2X XM to inject errors alarms to the DUT as follows 22 Select the Port you have configured for Thru Mode operation 23 Select the E A Inject tab 24 Add Patter
33. Frequency signaling Device Under Test Dense Wave Division Multiplexing Digital Cross connect Switch User Guide User Guide EB EBCDIC EOW ES ESF ESR ETSI FAS FC FCS FDDI FDM FEAC FEBE FEC FERF GBIC GP IB GUI 11 Errored Block Extended Binary Coded Decimal Interchange Code Engineering Order Wire Errored Second Extended SuperFrame format Errored Second Ratio European Telecommunications Standards Institute Frame Alignment Signal Foreground Channel Frame Check Sequence Fiber Distributed Data Interface Frequency Division Multiplexing Far End Alarm Channel Far End Block Error Forward Error Correction Far End Receive Failure Gigabit Interface Converter General Purpose Interface Bus Graphical User Interface 255 11 256 HDB3 HDLC HEC HO HO PTE HP BIP HP PLM HP RDI HP REI HP TIM HP UNEQ Hz ICMP IEC IHL IP ISDN ISO ITU IXC High Density Bipolar 3 High level Data Link Control Header Error Control High Order High Order Path Terminating Equipment High Path Bit Interleaved Parity error High Path Payload Label Mismatch High Path Remote Defect Indication High Path Remote Error Indication High Path Trace Identifier Mismatch High Path Unequipped Hertz Internet Control Message Protocol Incoming Error Count Internet Header Length Internet Protocol Integrated Services Digital Network
34. Guide User Guide Chassis Specifications 9 Three chassis are available the N5541A N5542A and the N5540A N5542A 4 slot chassis 4 slot chassis holds up to four modules Comes complete with e external 1OM BITS 2M clock reference input e four blanking plates e achassis to chassis cable for interconnecting chassis N5542A chassis connectors External BITS DS1 1 544 Mb s A DS1 reference signal as specified in GR 378 CORE Issue 2 February 1999 Connector 100 Ohm balanced Bantam socket Signal Level As per T1 102 1993 3V pp nominal Vpp max 3 6V Vpp min 2 4V Format Framed all 1s Ternary Return to zero External Balanced MTS Clock 2 048 Mb s 2 048 Mb s reference as per ITU T G 703 11 2001 section 9 Connector 120 Ohm balanced Siemens 3 pin socket Level Mark 3 0 Vpeak Space 0 0 3 Vpeak Data Format Data format framed all ones as per ITU T G 703 11 2001 section 9 External Un balanced MTS Clock 2 048 Mb s 2 048 Mb s reference as per ITU T G 703 11 2001 section 9 Connector 75 Ohm BNC female 237 9 238 Specifications Level Mark 2 37 Vpeak Space 0 0 237 Vpeak Data Format Data format framed all ones as per ITU T G 703 11 2001 section 9 External 2 048 MHz synchronization clock 2 048 MHz reference as per ITU T G 703 11 2001 section 13 Connector 75 Ohm BNC female Level Vpeak max 1 5V Vpeak min 0 75V External 10 0MHz synchronization clock The ch
35. International Organization for Standardization International Telecommunications Union Telecommunications Inter eXchange Carrier User Guide User Guide K bytes LAN LCD LEC L BIP LCP LLC LO LOF LOM LOMF LOP LOP C LOP P LOP V LOS LP BIP LP PLM LP RDI LP REI LP RFI LP TIM LP UNEQ 11 K1 and K2 Local Area Network Loss of Cell Delineation Local Exchange Carrier Line Bit Interleaved Parity error also CV L Link Control Protocol Logical Link Control Low Order Loss of Frame Loss of Multiframe Loss of Pointer Loss of Concatenation Synchronous Transport Signal Path Loss Of Pointer Virtual Tributary Path Loss Of Pointer Loss of Signal Low Path Bit Interleaved Parity error Low Path Payload Label Mismatch Low Path Remote Defect Indication Low Path Remote Error Indication Low Path Remote Failure Indication Low Path Trace Identifier Mismatch Low Path Unequipped 257 11 258 LSB LTM MAC MAN M F LOSS MMF MS MS AIS MS BIP MSOH MSP MS RDI MS REI MSTE MTBF MTJ MUX NDF NFAS Least Significant Bit Line Terminal Multiplexer Media Access Control Metropolitan Area Network Loss of Multiframe PDH Multi Mode Fiber Multiplexer Section Multiplexer Section Alarm Indication Signal Multiplexer Section Bit Interleaved Parity error Multiplexer Section OverHead Multiplexer Section Protection Mult
36. Mb s Ethernet on 200 meter loops of unshielded twisted pair copper UTP Cat 5 1 Gb Ethernet on 2 km multimode or 10 km single mode fiber optic cables at 1310 nm 1 Gb Ethernet on 2 km multimode fiber optic cables at 850 nm 1 Gb Ethernet on 30 meter loops of unshielded twisted pair copper UTP Cat 5 The JEEE standard for 10 Gb Ethernet The JEEE standard for 1 Gb Ethernet 251 11 252 AAL ABR ADM ADPCM AIS AIS P AIS L AIS V AIS C AMI ANSI ASCII ATM AU AU AIS AU LOP AU NDF BBE BBER BC ATM Adaption Layer Available Bit Rate Add and Drop Multiplexer Adaptive Coded Differential Pulse Coded Modulation Alarm Indication Signal Synchronous Transport Signal Path Alarm Indication Signal Line Alarm Indication Signal Virtual Tributary Path Alarm Indication Signal Concatenated Signal Alarm Indication Signal Alternate Mark Inversion American National Standards Institute Automatic Protection Switch American Standard Code for Information Exchange Asynchronous Transfer Mode Administrative Unit Administrative Unit Alarm Indication Signal Administrative Unit Loss Of Pointer Administrative Unit New Data Flag Background Block Error Background Block Error Ratio Background Channel User Guide User Guide BCD BER BERT BIP BPS BPV B3ZS B8ZS CAN CAS Cat 5 CATV CBR CCITT CCS CDT CDV CEPT CMI
37. No remote defect No defect 001 No remote defect No defect 010 Remote payload defect LCD P PLM P 011 No remote defect No defect 100 Remote defect RDI P ERDI P AIS P LOP P 101 Remote server defect ERDI P S AIS P LOP P 110 Remote connectivity defect ERDI P C TIM P UNEQ P 111 Remote defect ERDI P P AIS P LOP P 285 11 Telecoms Concepts VT Path Overhead VT POH for VT 1 5 VT 2 or VT 6 The VT Path Overhead VT POH support the transmission of SONET signals across the tributary path of a network Byte Label Description V5 CV V This byte contains error analysis signal label and path Signal status information Label Bits 1 and 2 contain lower order path error analysis and Path BIP 2 Status Bits 5 6 and 7 contain signal label For more information see V5 bits 5 to 7 Signal Label on page 287 Bit 3 contains the Remote Error Indication REI V Bit 4 contains the Remote Failure Indication RFI V Bit 8 contains the Remote Defect Indication RDI V Number of data bytes separating fields VT 1 5 25 VT 2 34 and VT 6 106 J2 VT Path Supports the end to end monitoring of a path Trace Identifier Number of data bytes separating fields VT 1 5 25 VT 2 34 and VT 6 106 Z6 Reserved for future use Number of data bytes separating fields VT 1 5 25 VT 2 34 and VT 6 106 Z1 Bits 5 to 7 of Z7 provide enhanced RDI V Bits 5 to 7 of Z7 together with bit 8 of V5 provide codes to indicate
38. Ports for Errors or Alarms 125 Monitoring Receiver Overhead Bytes 128 Viewing Measurement Results 130 Viewing Port and Channel Statistics 132 Viewing the Analysis of SONET SDH Errors and Alarms 133 To log events to a file 134 Setting a Measurement Gating Period 137 Viewing Service Disruption Time 138 To close a session 139 4 Instrument Setup and Use VT TU mode 5 Remote Access Port and Channel Numbering Scheme 142 Setting up the VT TU PDH Transmit Receive Interface 143 Setting VT TU Pointer Bytes 148 Edit VT LO Path Overhead Bytes 150 Generating a J2 Path Trace Message 152 Viewing VT TU Measurement Results 153 Viewing VT LO PDH Path Errors 153 Viewing VT LO PDH Alarms 153 Monitoring Received VT TU Path overhead bytes 154 Measuring Service Disruption in a PDH system 155 Detecting Path Routing Faults 156 Remote Access 160 Types of Remote Access 161 User Guide Desk and Home Access 164 Troubleshooting Remote Access 165 Step 1 Configure the Tester 166 To configure the tester for network access 166 To change the IP address of the switch card 168 To set upa VNC server 170 To set up a DCOM server 171 To set up a Terminal Services TS server 173 To install the TS software 174 To set up the TS server 175 Step 2 Configure the Remote Computer 178 To use the API remotely 179 To set up a VNC client 180 To set up a DCOM client 182 To set up a TS client 183 To access the online help remotely 185 6 Softw
39. Ports in a session or for a Selected port only select the On selected port only box 3 Select the Guard Time Edit button and enter the required value Set Warning Threshold You can set a Warning Threshold any channels which have a service disruption time equal to or above your pre set threshold will be displayed red in color in the Port mask and in the VT LO Path Max Time and Last Time columns 4 If required set a Warning Threshold value 5 Start a measurement select the Gating Start button 6 Verify error free reception of the PRBS test pattern select the Overview tab Chassis View and check for a red border or channels indicating errors 7 Invoke a protection switch on a working section of the equipment under test that is transporting the PRBS 8 Select the SRV DIS tab view the list of ports in your session and check if the Max Time field gives a value for any port 9 Select any port that has SRV DIS flagged and view the Max Time Last Time and Count and results in the channel list window You can use the Port channel mask to quickly examine the results for a particular channel 10 Select Gating Stop when you wish to end the measurement 155 4 156 Instrument Setup and Use VT TU mode Detecting Path Routing Faults You can use the J2 byte to check for continuity between the transmitting and receiving ends of a VT LO path You must first configure a set of reference Expected J2 path trace messages When
40. STS AU channel can be selected to form the overhead channel Selectable POH bytes are Ji C2 Gl F2 H4 Z3 F3 ZAIK3 ZSIN1 User Guide User Guide Getting Started 3 Overwrite Modes They are Sequence Static and Delay Some overwrite modes are available in Thru Mode only and some are available in both Terminal and Thru modes see the Table on the previous page Sequence overwrite mode Sequence definition A selected overhead channel can be overwritten with a user defined sequence The sequence comprises up to 256 elements where each element comprises e A byte value for each selected byte e The number of frames over which the byte values should be transmitted 1 65535 Sequence control The sequence can be transmitted once or repeated until manually stopped It can be manually stopped at any time In Thru mode when a sequence is running it overwrites the Thru data in the selected overhead bytes When the sequence is not running the Thru data passes unchanged Static overwrite mode In static overwrite mode the selected overhead bytes can be overwritten with user defined values When the values are changed it is done hitlessly that is all bytes are updated in the same frame Delay mode Thru mode only Section Overhead only Operation The selected overhead channel is delayed by N frames where N can be between 1 and 512 0 125ms to 64ms 117 3 Getting Started Transport Section o
41. Start a session by double clicking on the N2X Launchpad icon if not already in a session on your Controller display 3 Select Create a new session and click on OK 4 In the Port Selection window top left click on the Add Ports icon and select the modules and ports required for the test session 5 Click on OK gt To configure the Transmitter interface 6 From the list of ports you have chosen select a port to configure 7 Onthe N2X XM Setup for Port window select the Physical tab 8 Set the Signal Standard to SONET or SDH and select a Signal Rate if applicable 9 Switch the Laser to On 10 Set the Mode to Terminal VT TU Mode Operation If your N2X XM supports VT TU operation set the Transmitter VT TU Mode selection to On 11 Set the Clock Source to Internal Global 226 User Guide User Guide Measurements 8 To Configure the Receiver interface 12 Set the Receiver Signal Standard as per the Transmitter selection Also set the Signal Rate if applicable Set VT TU Mode to On 13 Check that the Optical Power Indicator displays a received power level within the operable BER measurement range Channels Set up 14 Select the Channels tab 15 Click on the Advanced button and use the Advanced Channel Configuration dialog edit keys to set up the VT TU channels or position the cursor over a channel right click your mouse then choose from the options given in the pop up menu 16 Double clicking on a channel wil
42. To check module hardware indicators Each time you power on or reboot a module it runs through several self check stages You should check that they display the correct indicators Module front view Steps 1 Check the module display Each module should have a unique number based on the chassis number and its position in the chassis If the display shows an error message see the next section for information on possible errors To check switch hardware indicators To determine whether the switches in your configuration have powered up without error refer to the Installation Guide for your Fast Ethernet Switch 55 1 56 Installation Module status indicators Code BHWI1 BHW2 BNET BIP Connect Ethernet and Enable DHCP BAPP KHW1 KHW2 KNET KIP KAPP Empty display Display shows Two modules with the same chassis number When booting the module LED indicators run through the following sequence of codes If a problem occurs the code shows what stage of the boot sequence was reached and a message may be scrolled across the display Following is a list of possible problems and recommended actions Diagnosis and Recommended Action The boot kernel cannot initialize its core devices Please return the module to Agilent The boot kernel cannot initialize the kernel services Please return the module to Agilent The boot kernel cannot establish an Ethernet link with the module controller Pleas
43. Tools Help Data Sources Event Viewer ODBC a Services Telnet Server Administration Ad istrative Tools aut a a Component Computer Services Management g Printers D X Local Security Performance Policy 9 Users and Passwords action view gt Glm aB e gt mou m Tree 204 Computer Management Local nn System Tools fa Event Viewer Z System Information E System Summary Hardware Resources E Components Software Environment Internet Explorer 5 amp Performance Logs and Alerts Shared Folders Device Manager Local Users and Groups Storage Disk Management ge Disk Defragmenter Logical Drives e Removable Storage Ea Services and Applications WMI Control Services H E Indexing Service Dj 2 H E Ej E Sy AgtBackplane Sy AgtResourceManager Sy AgtWinbridge Sy Alerter Sy Application Management Sy ClipBook Sy COM Event System Sy Computer Browser By DHCP Client Sy dhcpdNT Sa DNS Client By Event Log SFTP Publishing Service Sy Indexing Service By Internet Connection 5 SY IPSEC Policy Agent Bs Logical Disk Manager Bs Logical Disk Manager By Messenger By net Logon Bs NetMeeting Remote D Started Automatic LocalSystem Started Automati
44. User Guide 8 Measurements Avoiding Problems When Making Measurements page 210 APS Measurements page 211 APS Measurements on multiple STS AU channels J7244A 45A Option 010 page 214 Detecting Path Routing Faults page 217 Detecting VT LO Path Routing Faults J7244A 45A Option 010 page 219 Making a BER Measurement page 221 Making a BER measurement on VT TU channels J7244A 45A Option 010 page 226 Agilent Technologies 209 8 Measurements 210 Avoiding Problems When Making Measurements Bit errors can occur due to network defects such as faulty network elements damaged optical fiber or dust dirt particles in the fiber connections or problems with the test environment setup Follow the steps below to avoid problems when making measurements gt To avoid introducing errors when performing tests 1 Ensure that optical fibers connecting the instrument to the network are not damaged check that fibers have not been crimped 2 Avoid acute bends in the fiber Ensure that fibers only have gentle arcs 3 If the system is left unattended for a long term test ensure that the equipment is not in a position where people will disturb the connecting fibers 4 Ensure that all fiber connections are clean and dirt free Use a fiberscope to measure the cleanliness of an unpowered fiber A poorly cleaned fiber results in a drop in power Alternatively use a power meter e g the instrument s internal power meter
45. an internal or recovered clock source gt To set up the transmitter clock source 1 Select the Physical tab 2 Set the Clock Source to Internal Global 10 MHz see External Clock Reference or Recovered clock recovered from received data as required In Thru mode the Transmitter clock is locked to the Recovered clock When in Internal mode an external clock source can be used as a reference source This external reference signal is applied via one of the clock input ports on the N5542A Chassis rear panel see External Clock Reference User Guide 87 3 Getting Started External Clock Reference 88 An N2X XM system can comprise of multiple chassis populated with multiple modules four per chassis By connecting the chassis together via the event system cabling you can synchronize the transmit clock on all modules to a common source The choice for the clocks is always set up and connected to the first chassis in the system External Reference Clock Clock fEvent Daisy Chain Oo Clock Event Daisy Chain OQ Only one external reference clock source should be applied to the chassis rear panel at any given time If more than one clock source is
46. and performance of the complete duplex path to be monitored at either end For more information see G1 Bits 5 to 7 Coding and Interpretation on page 285 Bits 1 to 4 of this byte indicate the count of interleaved bit block errors based on the B3 count to the upstream path terminating equipment F2 User STS path user channel Allocated for network operator Channel communication between STS path terminating equipment H4 Position This byte provides multiframe phase indication for VT Indicator structured payloads 282 User Guide User Guide Telecoms Concepts 11 Byte Label Description Z3 Z Allocated for future use 4 N1 Allocated for tandem connection maintenance and the path data channels Bits 1 to 4 are used to provide tandem connection incoming error count IEC Bits 5 to 8 ar used to provide the path data channel For more information refer to ANSI T1 105 05 283 11 Telecoms Concepts 284 C2 Byte Mapping Bits 1to4 Bits5to8 Hex Description Code 0000 0000 00 Unequipped 0000 0001 01 Equipped non specific 0000 0010 02 VT structured STS 1 SPE 0000 0011 03 Locked VT mode 0000 0100 04 Asynchronous mapping for DS3 0001 0010 12 Asynchronous mapping for DS4NA 0001 0011 13 ATM mapping 0001 0100 14 Mapping DQDB 0001 0101 15 Asynchronous mapping for FDDI User Guide User Guide G1 Bits 5 to 7 Coding and Interpretation Telecoms Concepts 11 Bits 5 to Description Triggers 7 000
47. and red is a current error In the Port and Channel results display green bullets indicate a correct state red an error and pink historical errors Note white is the system window default color 32 Click on the Clear icon on the Toolbar to clear any historical errors If there are any channels still shown red determine the cause Check the errors and alarms being received and reconfigure the N2X XM or DUT appropriately Configure XM to generate errors 33 In the Setup for Port window select the E A Inject tab 34 Select the Type of errors you wish to add and also the Rate You can use the Path Errors and Alarms Mask to select which Channels Paths you wish to error Double click on a Channel Path to turn it off channels paths are shown white when off Select Statistics to be displayed 35 On the N2X XM Results window select the Counts tab The Port mask will indicate the presence of errors If only Transport errors are present only the outside border of the Port mask is shown red If Path errors are present then both the outside border and the errored channels are shown red 36 Click on the Select Statistics button 37 Click on the VT Path tab and select the type of measurements you wish displayed in the Results window You can also display Transport or STS Path results 38 Click OK when finished Start a measurement period 39 Check that there are no errors present the Port mask should be completely white no red areas 22
48. b8 F2 00h H4 00h z3 00h Z4 00h N1 0000 f o000 bl gt b8 Binary Default All Bytes To edit the path overhead bytes 1 Select the POH tab Select a channel or channels for editing as follows To select a channel e position your mouse cursor on the channel of interest and single click either left or right mouse key works Add remove a channel from current selection e control click adds the channel under the mouse to the selection or removes it if it is already in the selection Select a block of channels e shift click selects all the channels between the last selected channel and the one currently under the mouse 2 Set up the Path Overhead Bytes once you have selected the channels of interest 113 3 Getting Started Default All Bytes Select the Default All Bytes button to set all bytes to their default value Generating a J1 Path Trace Message You can check for continuity between the transmitting and receiving ends of a path by transmitting a message in the J1 byte The message format can be 16 byte CRC 7 or 64 byte non CRC You can set the trace message to a default value or define your own message The default trace message identifies the originating port and channel The Port and Channel Numbering scheme is as follows e Port ppp 001 999 e Channel number ccc 001 192 indicates the starting STS 1 number where the channel starts User defined string
49. change the netmask the first an cee ee TE ii t R 1 1 This is e name o e os a e server wl report 8 bits in the address is used for the Use the name that the NCPs can find on their local subnet network and the last 24 bits for hosts fe i e the Ethernet card and test port server identifier 180 0 0 1 interfaces The Ethernet card s host This is the name of the test module control network and the number must be 1 Save the changes range addresses that will be assigned i and exit Notepad subnet 16 6 6 6 netmask 255 0 0 8 Continued on the next page dhcpd conf 61 66 boot unknown clients true range dynamic bootp 16 6 6 2 16 6 6 255 168 User Guide to display the file in NOTEPAD Remote Access 5 dhcpd reg Notepad OL x 4 Back in Windows Explorer right click Fie Edit Search Help the file DHCPD REG then select Edit Recep1Ts HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Services DHCPdNT Uersion 2 6 6 6 5 Change the IP address here You must use the same number as before e g 11 Save the changes and exit Notepad e Back in Windows Explorer double click the dhcpd reg file you changed to update the system User Guide Start dword 66666662 HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Services DHCPdNT Parameters PortNumber dword 1edd ConfigFile C dhcpdnt dhcpd conf LeaseFile C dhcpdnt dhcpd leases LogFile C
50. during the test Displays the number of disruptions measured since the start of gating The duration of the longest error burst detected in the current measurement gating period 211 8 Measurements 212 To check switching thresholds by injecting errors and alarms The following procedure assumes that you have already set up the N2X XM to run a test session 1 Connect the N2X XM TX PORT 1 port via a suitable optical cable and attenuator to the device under test DUT Connect the output of the DUT to the N2X XM RX PORT 1 port Be aware of the safety factors involved before connecting disconnecting optical cables see Do not look into a Transmit laser on page 58 Select the Add Ports button on the Toolbar and select the modules and ports you intend to use for this measurement in the Port Selection window Switch ON the lasers for the ports you are using Select the Physical tab and set up the transmitter and receiver Signal Standard and Rate 5 Set the transmitter Mode Type to Terminal 6 Select a Clock Source 8 9 Select the Channels Setup tab You can do one of the following If you have already setup a structured signal in the device under test you can select Auto Discover This configures the N2X XM receiver channel setup to that of the received signal from the DUT Now copy the Receiver Channel Setup to the Transmitter select lt Copy OR Select the Transmitter Advanced button and use the Advanc
51. end to end error performance monitoring across an individual regenerator section The BIP 8 is calculated over all bits of the previous STM n frame after scrambling The computed value is placed in the B1 byte of the current STM n frame before scrambling Provides local orderwire channel for voice communication between regenerators hubs and remote terminal locations Provides a 64 kb s proprietary data communications channel for the user It is terminated at each regenerator section terminating equipment Provides a 192 kb s message based data communications channel DCC for administration monitor alarm and maintenance functions between regenerator section terminating equipment User Guide 293 11 Telecoms Concepts Multiplex Section Overhead MSOH The multiplex section overhead MSOH bytes support the transmission of an SDH signal across the multiplexer section span of a network Byte Description B2 K1 K2 D4 to D1 2 Sl M1 Provides multiplex section error monitoring The BIP n x 24 of an STM n frame provides end to end performance monitoring across an individual multiplexer section and is calculated over all bits of the previous STM n frame except for the first three rows of the current STM n frame before scrambling Multiplexer section automatic protection switching APS is controlled by the K1K2 bytes Two APS message types are used Linear APS messages Ring APS messages Bits
52. events are logged on a per second basis That is every second in which there was at least one occurrence of that event is logged A count of the number of each event in that second is also logged User Guide User Guide Getting Started 3 What is not logged Any unselected port and any channels within a Receiver port which are unselected unequipped are not included in the logging process To log errors alarms and statistics results to a file Result events are logged during and at the end of a measurement period Set up and enable logging before you run a test You must first set up logging to log the type of results events errors alarms or statistics for your current measurement Then choose a log event file name and destination where you wish to save the logged file of results The final step is to select from which ports to log results and the type of result events to be logged To set up logging 1 From the Toolbar select File then Configure Logging In the Logging Configuration window determine whether you wish to enable Error Event Logging Alarm Event Logging or Statistics Report Logging Click in the appropriate boxes as required When you enable a logging event the ports selected for logging are those that were selected the last time you configured that event Select which events to log 2 Click on the Options button for each event you wish to log and choose from the menu of events listed If you choose to log st
53. field Provides troubleshooting help e Using the API Describes how to use the Application Programming Interface Dialog Help Buttons Provides context sensitive details about the current dialog and what to enter for each field Start Menu Extranet Access Client the Internet P y Internet Explorer nk NetMeeting Places ae Windows Update Gi Set Program Access and Defaults es ES Mmutti servic r E Onine apt CollectDiagnostics B es ES adobe Reader 6 0 Web Site Programs gt y Provides access to the same help as that described above for the Help Menu The online help and paper guides are provided on both the e N2X XM controller C Program Files Agilent N2X OmniberXM doc and the N2X XM CD doc Launch OmniBERXM chm to see the online help or the pdf files to see the paper guides User Guide 77 3 Getting Started 78 Tool Bar Explained The functions you can access via the File Tools and Help menus are explained here OmniBER M1 Session 3 BER Test Fie Tools Help File Menu Selections are Open Save Set label Reset Configure Logging and Exit gt To open a session configuration from file 1 Select File then Open from the menu 2 Select a file from the Open dialog window You can select which port to restore the saved settings on by clicking on the Restore On column You can restore a complete session or a partia
54. given below gt Toseta channel to unselected 3 To toggle between a channels current payload setting and Unselected position the cursor on the channel of interest and double click the left mouse key The display will change to show Unselected or just U for an STS 3c or STS 1 Double clicking the left mouse key again returns to the original setting You can also select and unselect a channel from the right click menu gt To copy channel setup from Tx to Rx or Rx to Tx 4 92 Use the Copy button to copy the Transmitter settings to the Receiver and the lt Copy button to copy the Receiver settings to the Transmitter User Guide User Guide Getting Started 3 Advanced Channel Configuration The advanced channel configuration window allows you to quickly set up the desired transmitter or receiver channel configuration Advanced Channel Configuration x Channel Configuration Preview STS 3c STS 6c sts 3 _ 4 a Ji STS 24c STS 120 STS 3c STS 6c STS 6c STS 12c STS 24c STS 6c I STS 6c Preview Text Comma Separated 1 1 1 Psestriasiziesseasrzates gt al Add the eee channel types to the end of the preview text Delete OK Cancel For fast channel setup Select the Channels Setup tab Click
55. incorporated within this product 233 9 Specifications WARNIN Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure Mechanical J7241A and J7242A OC 192 STM 64 modules Size Width 187mm Height 29mm Length 287mm Weight 1 7kg J7244A and J7245A OC 48 STM 16 modules Size Width 187mm Height 29mm Length 287mm Weight 1 44 kg N5541A 42A 4 slot chassis Size Width 454mm Height 889mm Length 490mm Weight 9 1 kg N5540A 2 slot chassis Size Width 300mm Height 110mm Length 490mm Weight 5 1 kg 234 User Guide User Guide Specifications 9 Environmental Use Conditions Connectors TX PORT 1 Note For indoor use only Operating 5 to 40 C Temperature Humidity Maximum relative humidity 80 for temperatures up to 31 C decreasing linearly to 50 relative humidity at 40 C Installation Category I Pollution Degree 2 Altitude Up to 2000 m German Noise Declaration LpA lt 70dB am Arbeitsplatz operator position normaler Betrieb normal position nach DIN 45635 pt 19 per ISO 7779 Cleaning To clean the N2X XM use a soft dry cloth to clean the front panel and side covers J7241 42A Modules Wavelength Tx 1550 nm or 1310 nm Rx 1280 to 1580 nm Fiber power output 1550nm Min 5 dBm max 1 dBm single mode 1310nm Min 6dBm max 1dBm single mode Tx spectral width lt 3 nm Extinction rat
56. is more meaningful unique or conforms to your company or lab s conventions for host names 1 Right click My Computer and select Properties Open Explore General Network Identification Hardware User Profiles Advanced Search Manage D Windows uses the following information to identify your computer wa on the network Map Network Drive Disconnect Network Drive Full computer name OmniberxM Create Shortcut Workgroup WORKGROUP 2 Select the Fai Network To rename this computer or join a domain click z Properties __Propetios_ Identification tab click Properties Identification Changes You can change the name and the membership of this computer Changes may affect access to network resources A Changes will take effect after you reste Computer name OmniberxM Full computer name OK Omniber lt M More Member of 3 Specify a unique host Domain name for the tester COMPANY_DOMAIN Workgroup 4 Specify the domain or WORKGROUP workgroup to which the tester belongs Cancel 198 User Guide System Administration 7 To set a PC s IP addresses q Right click My Network Places and amp select Properties lolx File Edit View Favorites Tools Advanced Help Open Explore a cB cB Search for Computers O5 L L i i i To LAN To Tester Hub Map Network Drive Network and Dial Disconnect Networ
57. kb s message based data Comm communications channel DCC for Channel administration monitor alarm and maintenance functions between section terminating equipment 274 User Guide Telecoms Concepts 11 Line Overhead LOH The LOH carries SONET signals over the line span of a network Byte Label Description B2 Line Provides line error monitoring The BIP 8 is Code calculated over all bits of the line overhead and Violation envelope capacity of the previous STS n frame CV L before scrambling and is placed in the B2 byte of the current STS n frame before scrambling K1 K2 APS Line automatic protection switching APS is Channel controlled by the K1K2 bytes Two APS message types are used Linear APS messages Ring APS messages For more information see Linear APS Messages Telecordia GR 253 CORE Issue 3 on page 277 and Ring APS Messages Telecordia GR 1230 on page 279 D4 to D1 Data Provides a 576 kb s data communications channel 2 Comm DCC between line terminating equipment Used Channel for network administration maintenance information S1 Sync S1 bits 5 to 8 show which levels of synchronization Status are being used at the transmit end of a line span For more information see Synchronization Status Messages S1 bits 5 to 8 on page 281 Z1 Z2 Allocated for future growth MO REI L STS 1 line remote error indication defined only for STS 1 conveys the B2 errors detected by the downstream
58. list of optionally installed software For complete documentation on VNC see the AT amp T Research web site http www uk research att com vnc To enable On the tester PC log in with administrators privileges Then select remote access Start menu gt Programs gt VNC gt Run WinVNC App Mode Incoming Connections M Accept Socket Connections Display Number Mato Enter a password that Password Appi remote users must enter to I Accept CORBA Connections control the tester desktop I Disable Remote Keyboard amp Pointer mE ENE E RE Change the default settings z for the other parameters as m Update Handling d d Th ji k OK I Poll Full Screen jo Poll Console needed inen Clic I Poll Foreground Window tapere lew ij E Poll On Event T Poll Window Under Cursor Received Only This displays an icon in the lower right corner of the tester PC s desktop Add New Client When you are ready to kilailClents _J disable remote access About Wi 1 right click the icon and select Close VNC ad 10 10am 170 User Guide Remote Access 5 To set up a DCOM server You must configure the tester PC s DCOM security to allow remote computers to access ResourceManager and sessionexec 1 Select Start menu gt Run to display the Run dialog Then type dcomenfg to display the Distributed COM Configuration Properties dialog Distributed COM Configuration Properties 2
59. mounted in a rack but can be placed on top of a chassis User Guide Installation 1 To set up a rack mount PC Steps 1 Mount the Controller For information on this see your Controller Systems Rack Installation Instructions Installing the system in the rack 2 Optional Mount the sliding 2 slot flip up flat panel monitor If you have a rackmount monitor and keyboard see the Flat Panel Monitor Keyboard Installation Guide Flat Panel Monitor Keyboard Owner s Manual Otherwise connect your own monitor and keyboard to the Controller The monitor should support a 1024 x 768 pixel area and 24 bit color If you do not need a local console in the lab use the monitor and keyboard only temporarily to set up the controller for remote access described in Remote Access on page 159 Controller See the controller manufacturers Systems Rack Installation Guide e Chapter 1 3 Four Post Rack Installation e Chapter 1 20 Two Post Installation User Guide 39 1 Installation Step 3 Connecting the test equipment CAUTION To connect the test equipment you will need to e connect the chassis together e install the modules in the chassis e connect the chassis to a switch e connect the chassis and switch to the System Controller When installing test equipment be aware of the following Static Electricity Take anti static precautions The connectors on the modules are sensitive to static electricity To mi
60. moving the fitted module and replacing it with another module or blanking plate is kept to a minimum Never have a chassis operating without all module positions occupied by either a module or a blanking plate Sufficient blanking plates are supplied with all chassis for this purpose Always make sure that when fitting a module that the retaining screws are securely located before attaching any cables to the front panel 43 1 Installation Installing modules in a chassis Steps Notes Hot Swappable 44 Be aware of the safety handling information given in Installing and removing modules on page 42 before installing modules 1 Remove the blanking plate from the slot you want to use see instructions following for removing a module 2 Line up the module with the slot close the extractor levers and push the module firmly into place Tighten the screwlocks until finger tight You can position the modules in any of the chassis slots the order does not matter Be sure to fill any unused chassis slots with a chassis blanking plate When inserting the blanking plate always use the runners on the chassis otherwise you may damage the rear panel connectors A module can be hot inserted into an N2X XM chassis at any time The module will go through it s boot process and identify itself to the Resource Manager The Resource Manager will allocate the module a number according to the chassis in which it sits and it s positi
61. multi user system allows concurrent or per server licensing Instead TS CAL licensing uses per seat licensing and licenses are permanently assigned to computers This means a user connecting from both home and office uses two licenses N2X XM controllers use a hotfix that allows a license to time expire and be reclaimed if a connection from a given computer is not repeated within 52 to 89 days To install the TS software CAUTION When you install TS from the N2X XM Recovery CD it completely replaces the hard disk image on your N2X XM controller with a new image containing the latest operating system and N2X XM software Any third party software applications and data files you have installed or saved on the controller will not be preserved 1 Save all your data and configuration files before you install the hard disk image so that you can restore these files to the controller at a later stage For help on saving these files contact your system administrator 2 Insert the N2X XM Recovery CD into the CD ROM drive Power up the controller User Guide Remote Access 5 4 Follow the instructions provided with the N2X XM Recovery CD and install the hard disk image 5 Use the third party software CDs to re install any additional software you require 6 Restore any data and configuration files you backed up previously To set up the TS server To review the default remote connection options 1 Select Start menu gt Adminis
62. on Advanced button to display the Advanced Channel Configuration dialog Use the channel buttons 1 3 6 9 12 24 and 48 to set your channel configuration or type in your selection using the controller keyboard Or use a combination of both keyboard and buttons If your system has option 010 fitted and you have selected VT TU operation a VT TU Preview Text dialog window is displayed enabling you to select VT TU types 93 3 Getting Started Delete last channel selection Preview Text Comma Separated 1 1 1 6 6 3 6 312 9 3 48 241266 f fs 6 3 2 af ie Delete Reset 5 If you make a mistake while inputting a channel type into the Comma Separated list use the Delete button to delete the last entry in the list Note The Delete function deletes the last entry from the Comma Separated list fills the deleted channel with STS 1 s or AU 3 s SDH Reset channel configuration to all STS 1s 6 Clicking on the Reset button will reset all channels to STS 1 s AU 3 s To cancel advanced channel configuration edits 7 Click on the Cancel button to cancel all edits close the Advanced Channel Configuration window and return to your original transmitter settings The Advanced Channel Configuration dialog will only apply the new structure to the port when the dialog is OK d 94 User Guide Getting Started 3 Set Up Transmitter Payload Pattern The pattern type can be selected on a per channel basis each
63. pattern This method will produce accurate and repeatable protection switching time results 321 11 Telecom Concepts Signal Fail SF Triggering a Protection Switch Sequence Within 10 ms of injecting the B2 errors the Tail End node the NE receiving the B2 errors will detect the Excessive Error condition This causes the NE to declare a SF and to initiate a protection switch sequence In addition the Tail End node is required to insert an AIS alarm in all down stream traffic channels within 250 microseconds of declaring SF And since this AIS will overwrite the PRBS test pattern that is transmitted and monitored by test set 2 it causes the service disruption measurement to be triggered started SF detected B2 Errors applied Switch completed SF detection Protection Switching t AIS Inserted Measured Service Disruption Time For standards compliant network elements this method will produce accurate and repeatable protection switching time results Its main advantage over the LOS methods discussed earlier is that it eliminates the SF detection time error from the measured result The only technical drawback is that its results slightly under estimate a system s protection switching time but only by up to 250 microseconds assuming that the Tail End node inserts the downstream AIS within the 250 microseconds period specified in ITU T G 783 Possibly the most serious drawback a
64. session User Guide Connecting the chassis to a switch chassis rear view Installation 1 RJ 45 straight through Ethernet cables E7901 64210 u switch FS726 m 2 Steps 1 Connect the ethernet cables from the back of each chassis to the front of the switch When connecting a chassis use a straight through cable if you are connecting from the MDI port and a cross over cable if you are connecting from the MDI X port 2 Plug the switch into the power source Switches have no ON switch and power up once plugged in Notes The supplied switches are auto sensing and detect whether the cables attached to them are straight through or cross over They will auto switch performing the cross over correction of data when it is necessary User Guide 47 1 48 Installation Notes If you stacked the chassis on a bench connect the cables and run them over or to the side of the switch If you installed the chassis in a rack run cables over or under the switch You will need a second switch if you are using e An 8 Port switch and have more than 7 chassis or e A 24 Port switch and have more than 23 chassis Daisy chain the second switch off the first one by connecting any port on the first switch to any port on the second switch See the switch s Installation Guide for more information on daisy chaining switches User Guide Installation 1
65. should produce acceptable results however connector inspection is the only way to guarantee that a cleaning operation was successful 245 10 Operator Maintenance 246 Module Front Panel Optical Connectors Remove the dust cap and optical adaptor Moisten a small section of a lint free cloth with IPA Bring the cloth into contact with the exposed end of the ferrule and using light pressure inscribe several figure 8 motions with the cloth Using a dry portion of the cloth dry the ferrule immediately Failure to do this will result in a residue on the ferrule Dispose of the cloth immediately after use do not use it to clean another connector A compressed air spray may be used as a final operation to remove any residual particles Replace the optical adaptor after cleaning see below then replace the dust cap taking care not to touch the ferrule end face Module Front Panel Optical Adapters FC PC and SC Carefully remove the optical adaptor from the instrument Moisten a new stick cleaner with isopropyl alcohol Clean the adapter by pushing and pulling the cleaner within the alignment sleeve Rotate the cleaner slowly during the push pull operation Using a new dry cleaner remove the alcohol Dispose of the stick cleaners do not re use Replace the optical adaptor taking care not to touch the ferrule end face Storage and Shipment Storage The module may be stored in or shipped to environments that mee
66. than one chassis you need to connect each chassis to a switch to enable communication with the Controller Cable the test equipment in your rack s in the order shown in this diagram 5 D mmHg COHC 400 EEEE System Controller gt N5542A chassis Chassis numbering Chassis are numbered in the order they are connected The first chassis in the daisy chain will be numbered 100 by the System Controller the second 200 and so on The first module in the daisy chain will be numbered 1 the second 2 and so on The following diagram shows the rear view of the clock and event line daisy chain shown in the above diagram User Guide 33 1 Installation 100 200 300 400 N5542A chassis Primary Disconnect CAUTION When a chassis is used by itself the primary disconnect device is the chassis connector power cord However once installed into a rack or system there may be a different primary disconnect When planning your installation make sure you have clear access to the primary disconnect mechanism 34 User Guide Installation 1 Step 2 Install the Test Equipment User Guide CAUTION To install the test equipment you will need to set up either on a benchtop or in a rack e the chassis and modules e the switch e the System Controller PC When installing test equipment be aware of the following Ventilation Do not block the vent holes Do not block the vent holes on the sides of chas
67. that is to be upgraded 3 On your N2X XM controller select Start Programs Agilent N2X Omniber XM Version and Option Controller 4 Inthe Module Option Controller dialog window enter the module Serial Number Enabled Option and in the Key box the codeword provided by Agilent to enable VT TU operation in the chosen module User Guide Exchangeable optical connectors One option must be ordered per module e FC PC connector option 609 e SC connector option 610 e ST connector option 611 e UK calibration certificate option UK6 Accessories Specifications 9 Part number E7900 64207 E7900 64208 J7283A J7284A J7285A J7287A Product name N5542A chassis to chassis cable Rack to rack cable across 19 inch racks Optical connector Optical connector Optical connector XM product CD Description Interconnects N5542A chassis included with N5542A Interconnects N5542A chassis One exchangeable optical FC PC connector One exchangeable optical SC connector One exchangeable optical ST connector Software and user manual CD Performance Tests Performance tests are provided in the N2X XM Verification manual a copy of which in pdf format can be found at the following web site www Agilent com comms N2X User Guide 241 9 Specifications 242 User Guide s Agilent N2X XM d User Guide KP e o9 o c ee 10 eo gt Operator Maintenance
68. the VC including the status of the mapped payloads For more information see C2 Byte Mapping on page 303 Higher order path status contains status and performance monitoring information from the receiving path terminating equipment to the originating equipment For more information see G1 Bits 5 to 7 Coding and Interpretation on page 304 Allows status and performance of the duplex path to be monitored at either end Bits 1 to 4 of this byte contain the Path REI count Bits 5 to 7 contain Path RDI Higher order path user channel Allocated for network operator communication between path terminating equipment This byte provides multiframe phase indication for TU structured payloads Higher order path user channel Allocated for network operator communication between path terminating equipment User Guide 301 11 Telecoms Concepts Byte Label Description K3 HO APS Higher order automatic protection switching bits 1 to 4 Bits 5 to 8 are currently not used N1 Higher order tandem connection monitoring There are two possible implementations described in Annex C and Annex D of ITU T G 707 In Annex C the N1 byte provides a tandem connection incoming error count TC IEC and the remaining four bits provide an end to end data link For more information see N1 Bits 7 and 8 Multiframe Structure on page 305 The Annex D option contains an incoming error count IOC tandem connection REI TC REI o
69. the PC User s Guide directing you to check or install components inside your PC We cannot guarantee that the tester is compatible with other hardware peripherals operating systems or software applications not purchased through Agilent Consequently we do not provide warranty for or support problems associated with modified or non Agilent systems or systems with altered operating system configuration or initialization files Windows 2000 Different vendors provide slight variations of Windows 2000 the instructions provided here apply to the Windows 2000 included with PCs purchased through Agilent User Guide System Administration User Guide System Administration 7 This chapter describes tasks required to configure the tester PC and is designed for those without a lot of PC administration experience and those migrating from Windows NT or FreeBSD to Windows 2000 Please also consult the Windows guide for tasks not covered here This appendix describes how e To change the password on page 196 e To create a user account on page 196 e To set a PC s host name and domain on page 198 e To set a PC s IP addresses on page 199 e To change the binding order of network ports on page 201 e To set up an environment variable on page 203 e To start and stop services on page 204 e To configure the tester for printing on page 205 System Recovery This chapter also provides basic system reco
70. to measure the power at the end of a fiber the other end of which is connected to the network 5 Before connection is made always clean the connector ferrule tip with acetone or alcohol using a cotton swab Dry the connector with compressed air Failure to maintain cleanliness of connectors is liable to cause excessive insertion loss User Guide APS Measurements Last Time Count Max Time User Guide Measurements Definition In the N2X XM it is the time from the first error in a burst to the last error The last error is considered to have happened after an error free Guard Time has elapsed For a more detailed description of Service Disruption and the testing methods refer to the Telecoms Chapter in this guide Service Disruption with PRBS or Word payloads When a PRBS payload is used the service disruption time can be measured in all selected channels simultaneously Service disruption measurements are also available with 16 bit word payloads but it is not advisable to use an all ones pattern because most network equipment will send all ones when a switchover is in progress and this will emulate a good payload Result Updates Results are available on a per second basis A result is reported in the 1 second interval during which the service disruption ends The N2X XM display gives results for each channel of Last Time and Max Time The duration of the longest error burst detected in each 1 second interval
71. user Administrator The password is preset in the factory to be blank but you might need to change it to conform to company conventions See To change the password on page 93 3 Power up each chassis using the power switch on the front of the chassis Any modules in the chassis will boot up at this time To avoid possible numbering problems turn on the chassis in the order they are connected leaving the chassis that is at the end of the event line daisy chain until last 52 User Guide Installation 1 Using the Diagnostics tool You can use the Diagnostics Tool to perform a system test once it has powered up N2x Diagnostics Steps 1 Launch the Diagnostics Tool through the Windows desktop icon or through the Start menu 2 Select Programs gt Agilent N2X gt Tools gt Diagnostics The Diagnostics tool is displayed User Guide 53 1 Installation Ef RouterTester QARobot Diagnostics Tool File Modules License Help m System status Operating system Microsoft Windows NT 4 0 Build 1381 Service Pack 5 Run system tests Memory asati6 KB free out of 589164 KB total available Save embedded state Broadcast reboot System state Update failed 5 1 module was not assigned a number Check clock and event line connections Update module numbers p Test modules Run module functional tets IP addresses Module type Module Module state Run module intemal tests Al 56 10 0 8
72. x Applications Default Properties Default Security Defaut Protocols Applications NtmsSve a OffProv Outlook Message Attachment Outlook Office Finder Paint Shop Pro 7 Screen Capture Paint Shop Pro 7 Workspace File Paintbrush PhoneDialer Document Remote Storage Recall Notification Client RFtpC Document SENS Logon Events SENS Network Events SENS OnNow Events SENS Subscriber for EventSystem EventObjectChange events Server Extension Objects z OK Cancel Apply 2 On the Applications tab select ResourceManager and click Properties to display the ResourceManager Properties dialog axl General Location Security Identity Endpoints General properties of this DCOM application Application name ResourceManager Application type local service Autherticaion Levet iT Service name AagtResourceManager Cancel Arr User Guide 171 5 Remote Access 172 On the Security tab set the access permission to Use custom Click Edit to display the Registry Value Permissions dialog Click Add to display the Add Users and Groups dialog Select Everyone and click Add to give everyone access Click OK to close the Add Users and Groups dialog and the Registry value permissions dialog On the Security tab of the ResourceManager Properties dialog set the launch permission to Use default Then click OK to close the dialog On the Applications tab of the Distribu
73. you may use Remote Control send messages to clients forcefully disconnect or log off clients 177 5 Remote Access Step 2 Configure the Remote Computer Remote API access e To use the API remotely on page 179 e To access the online help remotely on page 185 Remote GUI access e To set up a VNC client on page 180 e To set up a DCOM client on page 182 e To set up a TS client on page 183 e To access the online help remotely on page 185 178 User Guide Remote Access 5 To use the API remotely The tester s API allows several remote users to launch separate test sessions from remote PCs or UNIX workstations You must first install Tcl Tk Version 8 0 or later on the remote computer The tester CD provides Tcl Tk 8 2 for Win32 computers If installing onto a UNIX system download the software from http tcl sourceforge net or http www tcl tk Build i e compile the Tcl source code as described at the web site N Exploring C Program Files T cl lib File Edit View Go Favorites Tools Help Fa Al Folders x A Desktop aj Gtcie 2 File Folder 9 14 99 9 00 AM My Computer Gaz _ i ic a 3 Floppy amp 74 AatClient tcl 27KB TclScript 10 27 99 3 53 PM 0 th PC Re f f 1 Unthe tester PC copy Eee C 7 AgtCommon tel 29KB TelScript 9 23 99 3 51 PM the file AatClient tcl Program Files 76 AatDiag tel 22KB TelScript 10 12 99 5 32 PM e mile Agtul
74. 0 SONET STS 1 Frame Structure 271 SONET Payload Structure 272 SONET Overhead Bytes 273 Section Overhead SOH 274 Line Overhead LOH 275 STS Path Overhead STS POH 282 VT Path Overhead VT POH for VT 1 5 VT 2 or VT 6 286 SDH Concepts 289 SDH Frame Structure 290 SDH Payload Structure 291 SDH Overhead Bytes 292 Regenerator Section Overhead RSOH 293 Multiplex Section Overhead MSOH 294 Higher Order Path Overhead HO POH 301 Lower Order VC n Path Overhead LO POH for VC 11 VC 12 or VC 2 306 Service Disruption 312 Test Configuration for Measuring Service Disruption Time 313 Contributors to Protection Switching Time 314 Protection Switching Time Test Methods 316 Understanding Service Disruption Test Results 323 User Guide 13 14 Index User Guide Agilent N2X XM User Guide 1 Installation N2X XM Transport at a Glance page 16 To contact us page 17 Step 1 Plan your installation page 29 Step 2 Install the Test Equipment page 35 Step 3 Connect the Test equipment page 40 Step 4 Power up the System page 52 Step 5 Connect to the System Under Test page 58 Step 6 Start the Software page 63 To power down the system page 67 S Agilent Technologies 15 1 Installation N2X XM at a Glance 16 The N2X XM has been designed to address the requirements of Qualification amp Verification Q amp V also often referred to as System Verification Test SVT for Next Generation SONET SDH devices such
75. 4 Connectors Chassis 237 Contact Agilent 17 Continuous Measurement Mode 137 Controller rackmount connection 50 Copy Port Settings 90 D DCC bytes D4 to D12 SDH Concepts 294 SONET Concepts 275 DCC channel D1 to D3 SDH Concepts 293 SONET Concepts 274 Detecting Path Routing Faults 217 DHCP server changing IP addresses 165 dhcpd conf file 168 169 dhcpdnt folder 168 Diagnostics 53 Do you need a switch 29 E E7901 642xx cables 41 edit section overhead bytes 107 Edit Transmitter Path Overhead Bytes 113 Edit VT LO Path Overhead Bytes 150 Electrical Specifications 233 Electromagnetic Compatibility 23 Encoding APS Bytes sequence and static overwrite 120 Enhanced RDI P Mode 132 Enhanced RDI P HP RDI alarms 99 Environmental Conditions 20 Error Rate Mappings 102 Error Rates 102 Error rates 98 ESD Precautions 42 Ethernet cables straight through 41 External Clock Reference 88 F F1 user channel byte SDH Concepts 293 SONET Concepts 274 F2 user channel byte SDH Concepts 301 SONET Concepts 282 F3 user channel byte SDH Concepts 301 File Menu 78 325 Index G G1 path status byte SDH Concepts 301 SONET Concepts 282 Ganged Port Operation 84 German Noise Declaration 235 H H1 to H3 bytes SDH Concepts 295 SONET Concepts 276 H4 position indicator byte SDH Concepts 301 SONET Concepts 282 Handling Requirements Mo
76. 421 345 mac_support agilent com 9 1 Takakura Cho Hachioji Tokyo 192 8510 Japan Asia Pacific 438B Alexandra Road 1 800 375 8100 TM_Asia agilent com Blk B 05 08 Alexandra Point Singapore 119958 User Guide 17 1 18 Installation Specifications For faster service We require the following information to troubleshoot problems The more of this you provide the faster we will be able to assist you e your name and contact details phone or E mail e your controller s model and serial number e your N2X XM modules model number e approximate purchase date e software version see the application s splash screen or Help menu e software installed e details of the problem For support through the World Wide Web You can also access technical support through the World Wide Web e www Agilent com comms N2X This site provides general information about the tester news product information data sheets and brochures Refer to the www Agilent com comms N2X web site for detailed N2X XM specifications Install an Antivirus application on system controller If your system controller is connected to a network it is strongly recommended that you install an Antivirus application and keep the virus definition files up to date User Guide Installation 1 Safety Precautions for the Operator User Guide WARNIN The following general safety precautions must be observed during all phases of operation service a
77. 8 Making a BER Measurement User Guide The procedure given here describes how to start a session set up the Transmitter and Receiver interface and channel configuration set up a measurement period add errors alarms to the transmitted signal and view the results To start a session 1 Connect the N2X XM TX PORT 1 port s via attenuator s to the device under test DUT Connect the output from the DUT to the N2X XM RX PORT 1 port s 2 Start a session by double clicking on the N2X Launchpad icon if not already in a session on your Controller display 3 Select Create a new session and click on OK 4 In the Port Selection window top left click on the Add Ports icon and select the ports required for the test session 5 Click on OK To configure the Transmitter interface 6 On the N2X XM Setup for Port window select the Physical tab 7 Set the Signal Standard to SONET or SDH and select a Signal Rate if applicable 8 Set the Mode Type to Terminal 9 Switch the Laser to On 10 Set the Clock Source to Internal Global To Configure the Receiver interface 11 Set the Receiver Signal Standard as per the Transmitter selection Also set the Signal Rate if applicable 12 Check that the Optical Power Indicator displays a received power level within the operable BER measurement range 221 8 Measurements 222 Channels Set up 13 Select the Channels tab 14 Click on the Advanced button and use the Advanced Chann
78. 9 8 Measurements 40 Add errors Select the E E Inject tab and set the Error Rate button to On to inject the type of errors already setup 41 Click on the Gating Start button 42 Observe the error results accumulating for the errored channels in the Counts results display 43 Click on the Gating Stop button to end the measurement or wait until the end of any preset gating period Error results are Cumulative over the entire measurement period Use a timed gating period Once to ensure that a known fixed transmitted error rate is measured correctly in the N2X XM receiver 230 User Guide i Agilent N2X XM User Guide e e e e e e ee 9 e gt Specifications 7 e s Mechanical page 234 e Environmental page 235 Connectors page 235 Chassis page 237 Option 010 page 240 Accessories page 241 Performance Tests page 241 ao Agilent Technologies 9 Specifications Specifications The specifications listed here are only a subset of the full N2X XM specifications Please refer to the N2X XM web site for a list of complete specifications given in the J7241A 42A and J7244A 45A Technical Datasheets at www Agilent com comms N2X Modules 10 Gb s Transceiver Modules Product Description J7241A J7242A OC 192 STM 64 Transceiver module single port 1 x Tx Rx 1550nm OC 192 STM 64 Transceiver module single port 1 x Tx Rx 1310nm 2 5 Gb s and below
79. E A Inject tab 3 Select LO Path SDH or VT Path Sonet and choose the Type of error 4 Select a Rate for each Payload If you wish to error selected channels only use the Path Errors and Alarms Mask to select the required channels see Selecting which channels to insert Path errors alarms on page 101 6 Click on the Error Rate On button to transmit the selected errors or the Single Error Add button to inject single errors 146 User Guide Instrument Setup and Use VT TU mode 4 Adding Alarms to the transmitted signal Only one alarm type can be enabled at a time The alarms can be added to any combination of the selected channels using the Path Errors and Alarms Mask You can add the following VT LO Path Alarms H4 LOM is also added to the list of alarms for the Sonet STS Path and the SDH HO Path SDH LO Path TU AIS TU LOP LP RDI LP UNEQ LP RFI PDH AIS LOF SONET VT Path AIS V LOP V RDI V UNEQ V RFI V PDH AIS LOF To add alarms to a DSn PDH signal 1 Ensure that you have switched on VT TU Mode on the Physical tab for the selected port 2 Click on the E A Inject tab 3 Select LO Path SDH or VT Path Sonet or PDH and choose the type of alarm 4 If you wish to alarm selected channels only use the Path Errors and Alarms Mask to select the required channels see Selecting which channels to insert Path errors alarms on page 101 5 Click on the Add Alarms Alarm butto
80. IEC Standard Commands for Programmable Instrumentation Synchronous Digital Hierarchy Severely Errored Frame Severely Errored Period Severely Errored Period Intensity Severely Errored Seconds Severely Errored Seconds Ratio Super Frame Start Frame Delimiter Service Level Agreement Single Mode Fiber Simple Network Management Protocol Section OverHead Synchronous Optical Network Synchronous Payload Envelope Synchronous Transport Module Synchronous Transport Signal Tandem Connection Tandem Connection Access Point Identifier Tandem Connection Bit Interleaved Parity error Tandem Connection Incoming Alarm Indication Signal Tandem Connection Incoming Error Count User Guide User Guide TC OOM TCI TCP IP TC RDI TC REI TC UNEQ TDM TDMA TE TIM TIM P TIM V TM TMN TOH TPID TU TU AIS TUG TU LOM TU LOP TU NDF TX 11 Tandem Connection Out of Multiframe Tag Control Information Transmission Control Protocol Internet Protocol Tandem Connection Remote Defect Indication Tandem Connection Remote Error Indication Tandem Connection Unequipped Time Division Multiplexing Time Division Multiple Access Terminal Equipment Trace Identifier Mismatch Synchronous Transport Signal Path Trace Identifier Mismatch Virtual Tributary Path Trace Identifier Mismatch Terminal Multiplexer Telecommunications Management Network Transport OverHead Tag Protocol Identifier Trib
81. J1 Path Trace test runs through a compare test and displays in the Port STS Mismatches column the number of mismatches found for each port and also gives channel results for pass or fail for the currently selected port Expected and Measured J1 values for the currently selected port are displayed The Port mask highlights in red any channels which have a J1 mismatch between the expected and received J1 s If you click on an errored red channel the channel list changes to highlight that channel allowing you to quickly view results 218 User Guide Measurements 8 Detecting VT LO Path Routing Faults J7244A 45A Option 010 User Guide The J2 byte connectivity test detects Sonet VT path trace routing faults while both J1 and J2 can be used to detect SDH LO path trace routing faults e g following a protection switch event The procedure is to first configure a set of reference Expected Path Trace messages then capture the received Measured Trace Messages The N2X XM then compares the Expected messages with the captured Measured messages and produces a result indicating whether there are any received messages in error mismatched Use the following procedure to monitor path trace routing To monitor VT LO path trace routing The following procedure assumes that you have already set up the N2X XM to run a test session 1 Connect the N2X XM TX PORT 1 port via a suitable optical cable and attenuator to the device
82. LAN or to connect remote clients through a VPN you must avoid addressing conflicts by changing the subnet addresses used by the tester See To change the IP address of the switch card on page 168 The tester s DCOM software is sensitive to the order of LAN interfaces The LAN interface that connects your test lab LAN which in turn connects remote clients must be first in the tester s network binding order The LAN interface that connects the test interfaces must be second Otherwise remote clients will not be able to connect to the tester software The order is configured properly on controllers from Agilent See To change the binding order of network ports on page 201 A known problem with Windows 2000 causes the DHCP client to ignore the address assigned by DHCP when interacting with DCOM on a Windows 2000 client PC Instead the client PC uses the default address 127 0 0 1 which prevents the controller PC from connecting to the Windows 2000 client PC There are two possible fixes Use a static IP address on the Windows 2000 client PC instead of DHCP Install the Microsoft s hotfix Q299407 on the Windows 2000 client PC To install the hotfix download and install Windows 2000 Service Pack 2 if you have not already and then execute Q299407_W2K_SP3_x86_en exe User Guide 165 5 Remote Access Step 1 Configure the Tester A summary of the tasks e To configure the tester for network access
83. M test modules and interfaces e g to see what you can do with test interfaces you do not currently have connected To control the tester remotely 1 Launch the application as shown on page 63 2 On the Test Session dialog enter the IP address or host name of the tester PC as defined in To configure the tester for network access on page 166 This connects your remote instance of a GUI to a test session running on the controller PC To update old desktop icons If you previously set up desktop shortcut icons on your remote PC to connect to the tester check the following Right click the icon and select Properties In the Target field any command such as CA PROGRA 1 TcNbin wish82 exe C Program Files Agilent N2X OmniberXM etc LicCheck tcl server lt n gt must be changed to C Program Files Agilen N2X OmniberXM bin xmLauncher exe server lt n gt where lt n gt is used to specify a default tester host name or IP address User Guide Remote Access 5 To set up a TS client About TS client licensing Each remote connection must have a Terminal Services Client Access License TS CAL Windows 2000 Server comes with an unlimited number of built in Windows 2000 Pro and Windows XP Pro TS CALs Other clients running operating systems like Windows NT XP Home ME 98 and 95 get a temporary license for 90 days after first connecting to a server When this 90 day temporary license expires you need to
84. M and device under test observe the connection sequences given below Optical receivers can be permanently damaged by excessive Optical Power or Optical Transients Ensure that any signal applied to the receiver is attenuated before connection so that the signal level applied is within the receiver operating range and also that the receiver is not subject to excessive optical transients Connecting Connect the optical cable to the input of the device under test before connecting to any of the N2X XM Optical Out connectors TX PORT 1 2 When connecting to the Optical In ports RX PORT 1 2 ensure the power level never exceeds the maximum stated limit for that port Also ensure that the power level of a signal applied to a receive port is within the recommended operating level for that port User Guide User Guide Steps TX PORT 1 Installation 1 Disconnecting Disconnect the optical cable from the Optical Out connector before disconnecting from the device under test Always close the fiber optic connector dust caps over the laser aperture e NEVER examine or stare into the open end of a broken severed or disconnected optical cable when it is connected to one of the N2X XM Optical Out connectors e Arrange for service trained personnel who are aware of the hazards involved to repair optical cables module front view 1 Connect the transmit TX PORT 1 and receive RX PORT 1 of each test port on the module
85. Section span Section span Line span Line span Path For more information see e Section Overhead SOH on page 274 e Line Overhead LOH on page 275 e STS Path Overhead STS POH on page 282 e VT Path Overhead VT POH for VT 1 5 VT 2 or VT 6 on page 286 User Guide 273 11 Telecoms Concepts Section Overhead SOH The Section overhead SOH supports the transmission of SONET signals across the section span of a network Byte Label Description Al A2 Framing Provides a frame alignment pattern A1 F6 Hex A2 28 Hex The frame alignment word of an STS n frame is n Al bytes followed by n A2 bytes JO Section Supports continuity testing between the Trace transmitting and receiving device on each section span ZO Reserved for future international standardization Bl Section Provides section error monitoring The section Code BIP 8 provides end to end error performance Violation monitoring across an individual section The CV S BIP 8 is calculated over all bits of the previous STS n frame after scrambling The computed value is placed in the B1 byte of the current STS n before scrambling El Orderwire Provides local orderwire channel for voice communication between regenerators hubs and remote terminal locations Fl User Provides a 64 kb s proprietary data Channel communications channel for the user It is terminated at each section terminating equipment D1 to D3 Data Provides a 192
86. TC APId byte 1 1 C1 C2 C3 C4 C5 C6 C7 13to16 TC APId byte 2 OXXXXXXX 17to20 TC APId byte 3 OXXXXXXX 65 to68 TC APId byte 15 OXXXXXXxX 69 to72 TC APId byte 16 OXXXXXXX 73 to 76 TC RDI ODI and reserved see below N2 bit 7 Description N2 Bit 8 Description 73 Reserved default 0 TC RDI 74 ODI Reserved default 0 74 Reserved default 0 Reserved default 0 76 Reserved default 0 Reserved default 0 User Guide 309 11 Telecoms Concepts K4 bits 5 to 7 Coding and Interpretation Bits 5 to Description Triggers 7 000 001 No remote defect No remote defect 010 Remote payload defect LCD PLM 011 100 101 Remote server defect AIS LOP 110 Remote connectivity TIM UNEQ defect 111 310 User Guide Telecoms Concepts 11 User Guide 311 11 Telecom Concepts Service Disruption Error Free Operation 312 Service disruption is the time it takes for a transmission system to perform an automatic protection switch following the detection of a transmission defect Events occurring during protection switching are shown Event AIS Error Free Detection MS Baina Removed Sync Operation gt gt gt gt gt gt gt If a fiber break causes protection switching in a network element an Alarm Indication Signal may be initiated by the network element Once switching takes place the AIS is removed After a period of synchronization on the protection signal path error fr
87. The Terminal Services Licensing window is displayed User Guide Remote Access 5 From this window you will be able to review who is currently using permanent and temporary licenses and install additional licenses The servers listed under All servers are computers in the network which have been set up as Terminal Services license servers Right click the current controller name and select Activate Server The Licensing Wizard is displayed Specify how you want to contact Microsoft to obtain a license Internet E mail web phone fax or activate your license manager The wizard displays your Product ID to relay to Microsoft Depending on the method of contact you choose you may need to identify an Install Option select Activate a license server the Purchase Method select Other user info address country Microsoft generates a TS Server License ID based on the Product ID You enter this license into the wizard The format of the license varies depending on the method used to obtain the license 4 Deselect Install licenses now unless you need to install additional license key packs for TS clients To review the manager options 1 User Guide Select Start menu gt Administrative Tools gt Terminal Services Manager The Terminal Services Manager window is displayed Review the available options From this window you can view the active processes running on each server and client connect to a client session
88. They can be up to and including 15 or 62 bytes long depending on the current selected setting of trace mode The appropriate terminator will be added The strings are e lt inst gt Instrument number 6 characters taken from configured name e lt port gt Port number 6 characters in the format nnnn n which is made up of the rack position module number and the physical port within the module e lt c gt Channel number 3 digits leading 0 added if needed gt To generate a J1 trace message 1 Select the POH tab 2 Select a 16 byte or 64 byte message and enter the required message User Message 16 Byte mode You can enter up to 15 characters The system will pad up to 15 with NULL and add the CRC 7 header User Message 64 Byte mode You can enter up to 62 characters The system will pad up to 62 with NULL and add the lt CR gt lt LF gt 114 User Guide Overhead Byte Overwrite Getting Started With Overhead Byte Overwrite you can select a group of overhead bytes and send various user defined data down it In this context overhead bytes refers to a byte or group of bytes within the SONET SDH overhead and has no relation to STS channels Overhead Overwrite is available in the following modes Thru Mode Intrusive overwrites the live data signal from the receiver e Terminal Mode overwrites the locally generated static overhead bytes Some Overwrite modes are available in THRU mo
89. U Type you wish to set up and select from the drop down menu The options available are given in the following Table User Guide User Guide Instrument Setup and Use VT TU mode 4 VT TU Tx Mapping Rx Mapping VT1 5 TUIL DSIASYNC SF VT2 TU12 TU3 AU 3 STS 1 DS1 ASYNC ESF DS1 ASYNC UNFRAMED Bulk Filled El ASYNC UNFRAMED El ASYNC CRC ON E1 ASYNC CRC OFF Bulk Filled E3 ASYNC UNFRAMED DS3 ASYNC UNFRAMED DS3 ASYNC M23 DS3 ASYNC CBP Bulk Filled E3 ASYNC UNFRAMED DS3 ASYNC UNFRAMED DS3 ASYNC M23 DS3 ASYNC CBP DS1 ASYNC SF DS1 ASYNC ESF DS1 ASYNC UNFRAMED Bulk Filled El ASYNC UNFRAMED El ASYNC CRC ON El ASYNC CRC OFF Bulk Filled E3 ASYNC UNFRAMED DS3 ASYNC UNFRAMED DS3 ASYNC M23 DS3 ASYNC CBP Bulk Filled E3 ASYNC UNFRAMED DS3 ASYNC UNFRAMED DS3 ASYNC M23 DS3 ASYNC CBP 145 4 Instrument Setup and Use VT TU mode Adding VT TU LO Path Errors to the transmitted signal Errors can be added to any combination of the selected transmitter channels Only one error type at a time can be injected The following VT TU errors can be added to the transmitted signal Sonet VT Path Errors Mapping Error VT1 5 VT2 TU 3 CV V BIP REI V SDH LO Path Errors Mapping Errors TU 11 TU 12 TU 3 TU BIP LP REI To add VT LO path errors 1 Ensure that you have switched on VT TU Mode on the Physical tab for the selected port 2 Click on the
90. Virtual Tributary Path Payload Label Mismatch Physical Media Dependent Path OverHead Point of Presence Packet Over SONET Point to Point Protocol Pseudo Random Bit Sequence Packet Switched Network Public Switched Telephone Network Path Terminating Equipment Path UnAvailable Seconds Quality of Service User Guide User Guide RAI RAI M F RDI RDI L RDI P RDI V REBE REI REI L REI P RS RS BIP RSOH RSTE RS TIM S N S BIP 11 Remote Alarm Indication Loss of Multiframe Remote Alarm Indication Remote Defect Indication Line Remote Defect Indication Synchronous Transport Signal Path Remote Defect Indication Virtual Tributary Path Remote Defect Indication Remote End Block Error Remote Error Indication Line Remote Error Indication also CV LFE Synchronous Transport Signal Path Remote Error Indication also CV PFE Virtual Tributary Path Remote Error Indication also CV VFE Virtual Tributary Path Remote Failure Indication Regenerator Section Regenerator Section Bit Interleaved Parity error Regenerator Section OverHead Regenerator Section Terminating Equipment Regenerator Section Trace Identifier Mismatch Receiver Signal to Noise Ratio Section Bit Interleaved Parity error also CV S 261 11 262 SCPI SDH SEF SEP SEPI SES SESR SF SFD SLA SMF SNMP SOH SONET SPE STM STS T TC TC APId TC BIP TC IAIS or TC INCAIS TC
91. a PC minimally requires the following Controller PC Full Installation Remote Client PC GUI Installation Operating System Windows 2000 Version 5 0 Service Pack 1 Windows 2000 Version 5 0 Service Pack 1 RAM 256 MB for medium sized systems of 5 to 20 128 MB N2X XM modules 512 MB for large systems of 21 to 32 N2X KM modules Disk Space Total 500 MB Total 300 MB On the C drive On the C drive 200 250 MB 300 MB to install the software 500 MB to run the software The actual software occupies less space The extra space is required during installation to unpack software and during operation for virtual memory usage 188 User Guide Software Install Upgrade 6 Software Installed The following software is installed e Agilent N2X Omniber XM software e PDF s of manuals online help release notes e Tcl Tk 8 2 Tcl Widgets BLT Expect scripting tools extensions to Tcl and Tk e Acrobat Reader 4 0 displays electronic versions of guides and papers e HTML Help displays the online help e vi emacs Windows versions of UNIX editors e VNC enables remote access see Types of Remote Access on page 161 Install anti virus software on system controller PCs If your system controller PC is connected to a network it is strongly recommended that you install an anti virus program and keep the virus definition files up to date User Guide 189 6 Software Install Upgrade To install upgrade software Before you beg
92. ackmount includes keyboard trackball 3 5 A at 100V desktop 6 A at 100V switch 8 port switch universal AC adaptor A at 100V 24 port switch A at 100V A slot chassis with 4 cards maximum 6 3 A at 100V 3 2 A at 240V 2 slot chasis with 2 cards maximum 3 3A at 100V 1 7A at 240 V User Guide 31 1 32 How should you position your test equipment Benchtop or rack You may install chassis either on a benchtop or in a rack Before mounting chassis in racks verify that they work by testing them first on a benchtop Clock and event lines The clock and event lines on chassis should be daisy chained together The first chassis in the daisy chain is the one that has no input to its clock and event lines It provides the master clock and sends timing signals to the other chassis through the clock line The event line triggers chassis to start and stop traffic generation and measurements at precisely the same instant There are some limitations brought about by the clock and event synchronization described above that you should be aware of when positioning the test equipment e keep modules that will be used together contiguous in the chassis e to use a port in a session you lock the entire module the port is on you do not lock the entire chassis e to use modules in multiple chassis you lock the daisy chain between the chassis User Guide Installation 1 Switches If your configuration has more
93. al LAN to allow multi user access The laptop system controller has an Ethernet port to connect to the chassis and or switch but the second port is a PCMCIA LAN card which due to its limited bandwidth has poor performance for connection to a LAN This port therefore is not recommended for remote control or multiple user applications The PCMCIA LAN card does not provide enough bandwidth for direct connection to the chassis Install an Antivirus application on system controller PC If your system controller is connected to a network it is strongly recommended that you install an Antivirus application and keep the virus definition files up to date User Guide Installation 1 What are the power requirements of your configuration As part of the installation you must consider the power consumption of equipment Avoid overloading a socket outlet by checking the combined power requirements of equipment on the same circuit It is important to consult with equipment manufacturers to determine the CAUTION p amp equipment s power requirements Check the rating plate on the equipment or look in its documentation Below is a list of rated power for equipment typically used with the N2X XM It is given as a guide only Device Model Rated Power Requirements N5544A Rackmount Controller 3 9 A at 100V N5545A High Performance Rackmount Controller 2A at 240V N5543A Laptop AC Adaptor JA at 100V monitor r
94. are Install Upgrade Software Installation Upgrades 188 System Requirements 188 Software Installed 189 To install upgrade software 190 To install and enable IIS FTP 191 To uninstall a previous version 191 To install on remote computers 192 7 System Administration System Administration 195 To change the password 196 To create a user account 196 To set a PC s host name and domain 198 User Guide 11 To seta PC s IP addresses 199 To change the binding order of network ports 201 To lista PC s IP addresses 202 To use the Dummy Module Manager 202 To start and stop services 204 To configure the tester for printing 205 To recover from system problems 206 To Manage Licenses 207 8 Measurements Avoiding Problems When Making Measurements 210 APS Measurements 211 APS Measurements on multiple STS AU channels J7244A 45A Option 010 214 Detecting Path Routing Faults 217 Detecting VT LO Path Routing Faults J7244A 45A Option 010 219 Making a BER Measurement 221 Making a BER measurement on VT TU channels J7244A 45A Option 010 226 9 Specifications Specifications 232 Mechanical 234 Environmental 235 Connectors 235 Chassis 237 Performance Tests 241 10 Operator Maintenance Operator Maintenance 244 Optical Connector Cleaning 244 User Guide Optical Patch cord connectors 245 Storage and Shipment 246 11 Telecoms Concepts Glossary 251 Signal Rates 267 Summary of Errors and Alarms 268 SONET Concepts 27
95. arms appear at the top of the list User Guide 127 3 Getting Started Monitoring Receiver Overhead Bytes You can view a snapshot of all the Transport Section Overhead bytes for a selected STS 3 STM 1 channel This includes TOH SOH Decodes values for K1 K2 S1 and JO bytes and STS POH C2 G1 and J1 values For SDH the HO POH decodes values for C2 G1 and J1 are given TOH STS3 C Fist cfs 1 64 Linked To Path K1 0000 No Request o k2 o 0 000 ResevedForFutueUse st S1 0000 0000 STU Synchronized Treceabaty Unknown JO Agent OmnBER XM 37241A Pot 1027 y a m STS POH Decodes C2 Equipped Non Specific Payload G1 0000 000 No Defect NorEnhanced Jo Ji Agilent OmniBER XM 37241A Pon 010271001 To Monitor Received Overhead bytes 1 Select the OH tab from the Results display area 2 Select the required STS3 or STM channel There are three methods available for quick selection of a channel e First selects the first STS or STM channel e User selectable up down keys allow you to select the required channel number or you can type the number in the box Linked to Path When you select this option the STS3 position selected is linked to the channel currently selected in the Selected Path mask selected channel is shown blue 128 User Guide User Guide Getting Started 3 Monitoring J0 J1 Trace Messages You can check for continuity between
96. arms that Inhibit Counting Pointer Increment Decrement Count LOS LOF AIS L MS AIS AIS P AU AIS LOP P AU LOP To View Pointer Results 1 Select the Counts tab 2 Select the Select Statistics button 131 3 Getting Started 3 In the Select Basics Statistics dialog window select the STS Path tab and Pointer Activity Add PTR ACT PTR INC PTR DEC to the Selected list Viewing Port and Channel Statistics gt To select port and channel statistics for viewing 1 Select the Counts tab 2 Select the Select Statistics button 3 Use the Select Basic Statistics dialog window edit functions to add or remove Alarm Seconds Ratios or Count results to the Transport STS Path or VT Path selected list Click on Alarm Seconds and Error Counts and Ratios to view the statistics available The up down arrows enable you to sort the order in which statistics appear on the measurements display For example the statistics at the top of the list will appear at the extreme left of the display next to the Port column Analysis Enhanced RDI P Mode The default for this mode is Off When set to On it affects how B3 errors are counted Refer to the Enhanced Remote Defect RDI alarm function as specified in Telecordia GR 253 CORE issue 3 and ITU T G707 for more details gt To enable analysis enhanced RDI P mode 1 Select the Advanced Setup button next to Copy Port Setup To button 2 Click in the Analysis Enhanced HP RDI Mode box 132 Us
97. as Multi Service Provisioning Platforms MSPPs Multi Service Switching Platforms MSSPs Optical Cross Connect OXCs Bandwidth Managers and Optical Edge Devices OEDs plus Add Drop Multiplexors ADMs and Digital Cross Connects DXCs The N2X XM is by virtue of its scaleable architecture and its multi channel simultaneous measurements test capability an ideal tool for manufacturing test applications where test execution time is considered to be important This guide describes how to install and start up the N2X XM Please first check the Box Contents Lists to ensure that you have received all components User Guide Installation 1 To Contact us Should you require technical assistance contact the center in your region Location Telephone E mail North America 9780 South Meridian Blvd 1 800 452 4844 Americas_Support agilent com Englewood Colorado USA 80112 You may also call these local numbers Brazil 55 11 7297 3600 Mexico 01 800 506 4800 Europe Test amp Measurement 020 547 2111 customercare_benelux agilent com Startbaan 16 1187 XR Amstelveen The Netherlands You may also call these local numbers France 0825 010 700 customer care_tfo agilent com UK 07004 666666 tmo_assistance aglient com Ireland 01 890 924 204 Germany 01805 24 6330 messtechnik_support agilent com 24 DM min Austria 43 1 25125 7006 Switzerland 41 1 735 9300 Italy 3902 9260 8484 agilent_direct agilent com Japan Hachioji Business Center 0120
98. assis will retain the existing 10 MHz external clock reference function Connector 50 Ohm BNC female Level Vpp min 0 5V Vpp max 3 6V Reference Output to Module control PCA Rate The BITS PCA will output a 10 MHz signal to the chassis Other Chassis Connectors Power Male AC power receptacle MDI RJ 45 100 Mb s Ethernet to PC controller MDI X RJ 45 100 Mb s Ethernet to next chassis Daisy chain Out Male D shell Event clock connections to next chassis Daisy chain In Male D shell Event clock connections from previous chassis User Guide User Guide Specifications 9 N5541A 4 slot chassis 2U rack mountable chassis capable of holding up to four hot swappable modules Rear Panel Connectors Power Male AC power receptacle MDI RJ 45 100 Mb s Ethernet to PC Controller MDI X RJ 45 100 Mb s Ethernet to next chassis Daisy chain Out Male D shell Event clock connections to next chassis Daisy chain In Male D shell Event clock connections from previous chassis External Trigger In Female BNC Trigger input from external device External Trigger Out Female BNC Trigger output to external device N5540A Portable Chassis 2 Slot The N5540A chassis holds up to 2 modules Each module uses one slot in the chassis The N5540A chassis includes the following e A chassis to chassis connecting cable e 2 Blanking plates a blanking plate must be fitted to any unused slot to ensure correct o
99. atios and Alarm Seconds and select the type of measurements you wish displayed in the Results window 38 Click OK when finished Start a measurement period 39 Check that there are no errors present the Port mask should be completely white no red areas 40 Add errors In the Setup for Port window bottom left select the E E Inject tab and set the Error Rate button to On to inject the type of errors already setup in steps 32 34 of this procedure 41 Click on the Gating Start button 42 Observe the error results accumulating for the errored channels in the Counts results display 43 Click on the Gating Stop button to end the measurement or wait until the end of any preset gating period User Guide Measurements 8 Error results are Cumulative over the entire measurement period Use a NOTE p timed gating period Once to ensure that a known fixed transmitted error rate is measured correctly in the N2X XM receiver User Guide 225 8 Measurements Making a BER measurement on VT TU channels J7244A 45A Option 010 The procedure given here describes how to start a session set up the Transmitter and Receiver interface and channel configuration set up a measurement period add errors alarms to the transmitted signal and view the results gt Tostart a session 1 Connect the N2X XM TX PORT 1 port s via attenuator s to the device under test DUT Connect the output from the DUT to the N2X XM RX PORT 1 port s 2
100. atistics you can set up to log events at pre determined intervals during gating and also at the end of a period Use the Interval secs spin control or type a value to set up a time interval 600 to 3600 seconds Save events to a file 3 You can save the logged results of error alarm or statistics events to a file With the Logging Configuration dialog still open click on the File button for any events logging that you wish to save to a file 135 3 Getting Started 136 Choose a File name files are saved in csv format which can be viewed in Microsoft Excel Choose where you wish to save the file The default is to save the file in C Programs A gilent N2X OmniberX M data The file path you choose is displayed in the Logging Configuration window Note If the file already exists any previous log data will be overwritten Port Selection You can choose the type of events to be logged for each port Select results to be logged 6 In the Port Selection window click on the All button for a logging event errors alarms or statistics to configure all the ports in your current session to log that event Select None to disable logging for all ports for the chosen event You can also configure events for individual ports by clicking in the event columns for the required port Logging only occurs during a measurement Gating period Configure your system to perform a measurement start gating and then view the results in you
101. ave VT TU Mode selected in the Physical tab window 2 Select the TOH SOH tab 3 Inthe VT LO Pointer Control dialog window click on the drop down menu arrow and select the required VT TU 4 Use the VT LO Pointer Control 1 or 1 buttons to increment or decrement the pointer value or select the Edit Pointer button and enter a new value Set New Pointer alue s 12 Pointer Value IV New Data Flag Cancel x oK T User Guide 149 4 150 Instrument Setup and Use VT TU mode Edit VT LO Path Overhead Bytes Path Overhead Byte Access You can set up the VT TU path overhead bytes for an individual channel or a number of selected channels Every POH byte in every channel can be set to a unique value r Selected Path r Path Overhead Bytes vs o fo fo 000 Unequipped z o 0 bl 2 b3 b4 b5 b7 Binary b8 N2 ooh Ka oon Default All Bytes VT1 5 TU11 VT2 TU12 POH settings For any chosen channel any POH byte except V5 and J2 can be individually set The selected byte can be set to a value in the range 00 FF hex To edit the VT TU path overhead bytes 1 Select the POH tab 2 Use the Selected Path mask to select a channel or channels for editing as follows To select a channel Use the zoom feature click on x at corner of mask for a larger display e position your mouse cursor on the channel of interest and single click either left or ri
102. both the old version and enhanced version of RDI V For more information see Z7 bits 5 to 7 Coding and Interpretation on page 288 Number of data bytes separating fields VT 1 5 25 VT 2 34 and VT 6 106 286 User Guide User Guide Telecoms Concepts 11 V5 bits 5 to 7 Signal Label Bits 5 to7 Description 000 Unequipped 001 Equipped non specific 010 Asynchronous mapping O11 Bit synchronous mapping no longer valid for DS1 100 Byte synchronous mapping 101 Unassigned 110 Unassigned 111 Unassigned 287 11 Telecoms Concepts 288 Z7 bits 5 to 7 Coding and Interpretation V5 bit 8 Interpretation Triggers Z7bitS Z7bit6 Z7bit7 0 0 0 No remote defect No defect 0 0 1 No remote defect No defect 0 1 0 Remote payload PLM V defect 0 1 1 No remote defect No defect 1 0 0 Remote defect AIS V LOP V 1 0 1 Remote server defect AIS V LOP V 1 1 0 Remote connectivity UNEQ V defect 1 1 1 Remote defect AIS V LOP V User Guide Telecoms Concepts 11 SDH Concepts For SDH reference information see e SDH Frame Structure on page 290 e SDH Payload Structure on page 291 e SDH Overhead Bytes on page 292 User Guide 289 11 Telecoms Concepts SDH Frame Structure The relationship between the various elements that make up an SDH signal is shown in the following diagram 270 columns bytes ___________ 261 columns bytes
103. button to start the burst of error Note Stopping the burst will reset it so that it will start from the beginning if restarted Also the Timed Burst Parameters fields are greyed out disabled when there is a timed burst in progress 103 3 Getting Started 104 Pulse mode alarm burst generation You can generates alarms bursts of SONET SDH frames Pulse Mode bursts are applied to the currently selected alarm type The pulse mode alarm burst sequence is as follows burst starts OFF gt then goes to ON for X frames gt then OFF Where X is 1 to 64 Frames are SONET SDH frames or SPE VC frames depending upon the currently selected alarm type Pulse mode bursts are applied to the currently selected alarm type 1 2 3 4 5 Select the E A Inject tab Select the Type of alarm you wish to generate Set the Mode to Pulse Burst Enter a Burst Length value 1 to 64 Click on the Pulsed Burst Start button to start the burst of Alarms There is no stop control for pulse mode as the burst terminates after a maximum of 8 milliseconds 64 frames User Guide User Guide Getting Started 3 Set up Transmitter TOH SOH Select the TOH SOH tab Within the TOH SOH tab you can set up the following e K1 K2 Automatic Protection Switching e S1 Synchronization Status Message e Configure the Section Overhead bytes e Increment decrement Pointer value e JO Section Trace Message e Overhead Sequence Capture Generating K1
104. c LocalSystem Started Automatic LocalSystem Notifies selected users Manual P 7 Provides software inst Manual Stop 3 Right click Supports ClipBook View Manual Pause the service Provides automatic dist Started Manual Resume and select Maintains an up to dat Started asia Restart Start Stop Manages network confi Started Automatic All Tasks 5 Automatic The available Resolves and caches D Started Automatic Refresh selections on Logs event messagesi Started Automatic lt Provides FTP connectiv Started Automatic _ Properties the menu Manual Help depend on Provides network add Manual whether the Manages IP security p Started Automatic LocalSystem service is Logical Disk Manager Started Automatic LocalSystem running Administrative service Manual LocalSystem Sends and receives m Started Automatic LocalSystem Supports pass throug Started Automatic LocalSystem Allows authorized peo Manual LocalSystem xl User Guide System Administration 7 To configure the tester for printing You might want to print and analyze test results or help information offline You can connect a parallel printer directly to the tester or use a printer on your company LAN Ask your system administrator about printer names 1 Double click s My Computer My Computer 3 Select a locally connected or network based printer 2 Double click Printers then Add Printer Connect to P
105. cannot discover its number Check the instrument cabling then click the Diagnostics Tool s Update module numbers button The daisy chain that connects the chassis is segmented Check for a break in the chain immediately before the chassis with the duplicate module number User Guide Installation 1 When the module is downloading data the display flickers to show this activity When the module is ready for use it displays its number and a trail of pixels snakes round the perimeter of the display When in use by a test session the display is constant showing only the number It will also periodically scroll the session label User Guide 57 1 Installation Step 5 Connect to the System Under Test 58 WARNIN Review the following safety information before connecting to the system under test Do not look into a Transmit laser Lasers produce a very intense visible or invisible light that is harmful to human tissue and may cause eye damage Never look into a Tx port to see if the laser is working Before disconnecting or connecting a cable from or to a Tx port ensure that the red LASER LED next to the port is off WARNIN To avoid hazardous exposure to laser radiation it is recommended that the following practices are observed during system operation e ALWAYS DEACTIVATE THE LASER BEFORE CONNECTING OR DISCONNECTING OPTICAL CABLES e When connecting or disconnecting optical cables between the N2X X
106. ce Message You can insert trace messages to verify signal routing through your system The message format can be 16 byte CRC 7 to G707 or 64 byte format ending in lt CR gt lt LF gt The trace message can be set to a default value or user defined The default trace message identifies the originating port i e ppp 001 999 The default values are 16 byte mode Agt ppp lt padding gt lt CRC 7 gt 64 byte mode Agilent OmniBER XM JxxxxxPort ppp lt padding gt lt CR gt lt LF gt Instrument number Jxxxxx will match the current instrument Padding is NULL characters User defined string They can be up to and including 15 or 62 bytes long depending on the current selected setting of trace mode The appropriate terminator will be added The strings are e lt inst gt Instrument number 6 characters taken from configured name e lt port gt Port number 6 characters in the format nnnn n which is made up of the rack position module number and the physical port within the module e lt c gt Channel number 3 digits leading 0 added if needed User Guide 109 3 Getting Started 110 gt To generate a JO trace message 1 Select the TOH SOH tab JO Section Trace Message C 16 byte 64 byte Default Message Aaitent OmniBER XM J72424 Port 6502 1 2 Select a 16 byte or 64 byte message and enter the required message using the keyboard Overhead Byte Group Capture Overhead chann
107. channel can be set to one of the following User Word User defined 16 bit word The same word value is used for all channels set to User Word PRBS23 or PRBS23 inverted The pattern is byte aligned to the SONET SDH frame but has no specified alignment to the frame The pattern can be inverted or non inverted This is selectable on a per channel basis Physical Al Channels ttt Pattern Transmitter E PRBS23 lL PRBS23 P PRBS23 PRBS23 PRBS23 PRBS23 LP __PRBS23 PRBS23 PRES23 PRBS23 User Word fort 1100 foot fi110 gt To set up the transmitter pattern 1 Click on the Pattern tab 2 Position the display cursor on the channel of interest and click the right mouse key to display the pattern selection menu or hit the spacebar to toggle round the available options Set the Transmitter pattern selection to one of the following e PRBS 23 shown on display as PRBS23 or P e PRBS 23 Inverted shown on display as PRBS23 INV or I User Guide 95 3 Getting Started e User Word user definable 16 bit user word shown on display as User or W 3 If you selected User Word type the required 16 bit word in the User Word fields at the bottom of the Transmitter display Copy Tx Pattern to Rx You can copy the current Transmitter Pattern selections to the Receiver this includes User Word setup Set up the Transmitter Payload Pattern selection for each channel then select the Cop
108. ckground error rate that exceeds a provisioned threshold in the range 10E 05 to 10E 09 Note that at the Multiplex Section level ITU T G 806 October 2000 draft specifies the detection time for these errors as 10E 09 To reliably measure protection switching time you need to measure the service disruption time associated with a SF SD condition that either minimizes the detection time create a LOS failure typically detected in less than 100 ms or eliminates the detection time generate control Parity Errors B2 and B3 on the entity being protected Dividing service disruption time into its component parts is necessary due to the wide variation in detection times for different SF SD conditions Detection Times These range from 100 microseconds for a LOS failure to 10 000 seconds for a Signal Degrade that has a provisioned threshold of 10E 09 error rate Also the nature of some faults can be very unpredictable For example when a fiber is damaged during construction work it may not break cleanly Instead the optical signal may fade over several tens of milliseconds or vary erratically before finally disappearing So the ITU T standards require that once SF SD is detected a Protection Switch event must be completed in 50 milliseconds or less This is a 317 11 Telecom Concepts tough requirement but if it is met end users will not normally notice a Protection Switch event even allowing for a realistic SF SD d
109. code from the Bytes Select field Set the Mode field to Static or Sequence as required Select the Encoding Setup button Set up the APS Encoding Scheme and also the APS Byte Positions Click the Encoding On button to encode the bytes to turn off encoding click the Encoding On button again NA wn A WwW NY 8 Click in the cells in the OH Overwrite dialog window and set up each cell as required Either select from one of the drop down menu s or enter a value 9 Click OK when finished APS Fields Request APS byte 1 K1 bits 1 to 4 Destination APS Byte 1 K1 bits 5 to 8 Source APS Byte 2 K2 bits 1 to 4 Path APS Byte 2 K2 bit 5 Status APS Byte 2 K2 bits 6 to 8 APS Messages For detailed lists of APS messages refer to SONET Concepts on page 270 and SDH Concepts on page 289 User Guide Setting up the Receiver User Guide Getting Started 3 Optical Connector Safety Information Please be aware of the optical connector safety information before making connections to the receiver refer to Step 5 Connect to the System Under Test on page 58 Optical Power Indicator m Optical Power Indicator 200 85 3 0 4 0 dBm Status In BER Measurement Range Indicates the level of power being received in relation to that required for a BER measurement There are three colored regions on the optical power indicator to indicate power level status for a BER measurement e Blue region low power
110. components e system controller which can be a laptop or a rackmount type as shown below e switch e chassis and modules System Controller Switch NETGEAR min F572 y Used to connect chassis and modules to the System Controller PC Chassis and Modules Three chassis are available the N5541A 4 slot chassis the N5542A 4 slot chassis with BITS MTS clock input and the N5540A 2 slot chassis holds up to two modules See Chassis on page 237 for further information 24 User Guide Installation 1 Chassis and modules modules front view s power Gap ae GD 1m switch Gb nn nn z B Shows chassis Shows module Connects to System A blanking plate number number Under Test rear view Connects to external trigger devices optional Time synchronization inputs optional f SS TRIGGERS S ile ii ip IN QUT In in i Connects to hs ACT LINK ACT Controller and kA em e i h MDI MI X IN OUT SERIAL switc y Connects to Synchronizes ports power Modules are inserted into a chassis Modules differ from each other in the number of test ports they provide the placement of test ports and the LEDs provided to indicate port status User Guide 25 1 26 Installation Hot Swappable CAUTION Modules are hot swappable when not locked in use
111. d On 6502 1 4 On U R 6502 2 4 On U R 6503 1 On U R 6504 1 4 On U R 6504 2 amp On U R 2 5G 1310nm I Terminal 2 5G 1310nm R Terminal 10G 1310nm R Terminal 2 5G 1550nm I Terminal 2 5G 1550nm K Terminal To turn on the Lasers Sie Geile Port Laser Power Type Mode VT_ TxRate RxRate Inject OH gt 65011 amp On OS UAR 10G1310nm F Terminal Off OC 192 OC 192 Tx Rx OC 48 Off OC 48 Off 00 192 T Ax STM 16 Off OC 48 Configuration Installation 1 ide Show OC 48 OC 48 00 192 STM 16 Oc 48 1 Click on the Laser On icon on the N2X XM Toolbar to turn all the lasers on The laser column should switch from off to on for each test port 2 To turn all the lasers off click Laser Off 65 1 Installation To check the N2X XM modules hardware LEDs The last step is to check the physical LEDs for the hardware modules 10G Module Qt b 1 Check the LOF LOP LED OLOF LOP yellow The test port detects a Loss of Frame alarm A1 A2 framing errors for 3 ms or Loss of Pointer alarm 8 10 consecutive frames with invalid pointers Possible causes e The tester and DUT clocks are not synchronized to the same master e Mismatched or incompatible SONET SDH settings The LED turns off on receipt of valid frames 2 Check the AIS RDI LED AIS RDI yellow The test port detects an Alarm Indication Signal or Remote Defect Indicator in rec
112. de only and some are available in both THRU mode and Terminal mode The following table summarizes the overwrite features and indicates in which modes they are available Feature Available Modes TOH byte sequence overwrite POH byte sequence overwrite in a single selected AU channel TOH byte static overwrite POH byte static overwrite in a single selected AU channel TOH byte delay user selected bytes delayed by up to 512 frames 64 milliseconds Tx 10G lt 2G5 Thru mode Intrusive Non VT Terminal mode Tx 10G lt 2G5 Thru mode Intrusive Non VT Terminal mode Tx 10G lt 2G5 Thru mode Intrusive Non VT Terminal mode Tx 10G lt 2G5 Thru mode Intrusive Non VT Terminal mode Tx 10G lt 2G5 Thru mode Intrusive only User Guide 115 3 Getting Started 116 Section HO Path Overhead Type Either Section or HO Path Overhead can be selected Overhead Bytes The overhead channel is a user selectable byte or group of bytes within the SOH or POH The overhead channel can be set up as follows Pre defined overhead channels can be selected by name Pre defined bytes are JO El F1 S1 D1 D3 K1K2 K1K2K2 2 K1 2K2 2 D4 D12 MO M1 F2 Up to 9 section overhead bytes can be selected by specifying their position in the overhead by row and column number A single STS AU channel can be chosen for POH overwrite Up to 8 POH bytes from the selected
113. dules 43 hardware indicators 55 Help Menu 80 High order path overhead HO POH Concepts 301 History clear history of error conditions 80 Hot Swappable 44 46 I indicators hardware 55 Installation Planning 29 Installation Process Overview 27 Installing modules in a chassis 44 Intrusive Thru Mode 86 ITU ANSI Analysis 133 J JO Section Trace Message Transmit 109 JO trace byte SDH Concepts 293 SONET Concepts 274 J1 Path Trace Transmit 114 326 J1 path trace byte SDH Concepts 301 SONET Concepts 282 J2 path trace identifier SONET Concepts 286 J2 trail trace identifier SDH Concepts 306 J7241 42A Modules 235 J7244A 45A Modules 236 K K1 K2 APS Messages 105 K1 K2 bytes SDH Concepts 294 SONET Concepts 275 K3 byte SDH Concepts 302 K4 lower order APS byte SDH Concepts 307 L laptop PC connection 51 Laser safety 233 Lasers 85 Log events 134 Logging Port Selection 136 Select results to be logged 136 Lower order path overhead LO POH Concepts 306 M MO remote error indication byte SONET Concepts 275 M byte SDH Concepts 294 SONET Concepts 275 M1 only mode for REI L MS REI errors 99 Making a BER Measurement 221 Measurement Gating System 137 Measurement Period 137 Measurement Results 130 Mechanical Specifications 234 Module Handling Requirements 43 Module Insertion 26 Module Removal 26 Module status indicator
114. e 23 Electromagnetic Compatibility EMC Information 23 Safety Information 23 Overview N2X XM multi services transport application 24 Chassis and modules 25 Hot Swappable 26 Overview Installation Process 27 Typical Configuration 28 Step 1 Plan your installation 29 How many ports and user sessions can your System Controller support 29 What are the power requirements of your configuration 31 How should you position your test equipment 32 Step 2 Install the Test Equipment 35 To set up chassis on a Benchtop 36 To rack mount a chassis 37 Set up the switches 38 To rack mount switches 38 To set up a rack mount PC 39 Step 3 Connecting the test equipment 40 Connecting chassis together 41 Installing and removing modules 42 ESD Precautions 42 Installing modules in a chassis 44 Removing modules from chassis 45 Connecting the chassis to a switch 47 Connecting the System Controller 49 Connecting a rackmount Controller 50 To connect a laptop PC 51 Step 4 Power Up the System 52 Using the Diagnostics tool 53 To check module hardware indicators 55 To check switch hardware indicators 55 Module status indicators 56 Step 5 Connect to the System Under Test 58 To attenuate single mode optical signals for a multimode optical interface 61 Step 6 Start the Software 63 To check the N2X XM modules hardware LEDs 66 To power down the system 67 2 Using the Graphical User Interface GUI 3 Getting Started To launch N2X XM 75 To e
115. e of the STS POH bytes for any chosen channel and also the VT LO POH bytes V5 Z6 Z7 J2 for SONET and V5 N2 K4 J2 for SDH for any chosen channel gt To monitor received VT LO POH bytes 1 2 3 In the Measurements Results window select the OH tab Select the required Port Select the required SOH TOH There are three methods as follows First selects the first STS 3 or STM 1 User selectable up down keys allow you to select the required STS 3 STM 1 1 16 or you can type the number in the box Linked to Path When you select this option the position selected is linked to the STS 3 STM 1 currently selected in the Selected Path mask selected channel is shown blue Click on the required VT TU channel to observe the VT LO POH bytes for the selected channel For easier selection of individual VT TU channels use the zoom feature to give an enlarged Port Mask Click on the icon at the top right corner of the mask User Guide User Guide Instrument Setup and Use VT TU mode 4 Measuring Service Disruption in a PDH system You can measure the time it takes service disruption time for the automatic protection switch APS circuit to detect and activate the standby equipment when a fault occurs To view service disruption time 1 Select the SRV DIS tab Set up Guard Time 2 The guard time which is used to define the end of an error burst can be set between 100ms and 1600ms in 1ms steps You can define it for All
116. e reported since they are more than the Guard Time apart while in Case 2 only a single high value will be reported since they are less than the Guard Time apart In both cases the reported results will indicate that a problem exists in the system under test 324 User Guide Index A Al A2 framing byte SDH Concepts 293 SONET Concepts 274 Add Alarms 97 Add Errors 96 VT TU LO Path Errors 146 Adding Errors and Alarms 97 Alarms Add 96 APS Measurements 211 APS messages Concepts linear SDH 296 linear SONET 277 ring SDH 298 ring SONET 279 Auto Discovery Receiver 122 Avoiding Problems When Making Measurements 210 B B1 byte SDH Concepts 293 SONET Concepts 274 B2 byte SDH Concepts 294 SONET Concepts 275 B3 byte SDH Concepts 301 SONET Concepts 282 BNC cable 41 Bulk Filled Stuff Column Overwrite 90 C C2 signal label byte SDH Concepts 301 SONET Concepts 282 User Guide Calibration 233 Capture Overhead Byte Group 110 Channel configuration set up 93 Channel Numbering SONET SDH 142 Chassis and modules 25 Chassis Connectors 237 Chassis numbering 33 Cleaning 235 Clear History 127 Clear History on all ports 80 Clock and event lines 32 Clock source 87 Closing a session 139 Codeword Enable 240 Compliance 23 Configuration 28 Hide Show 80 Connecting a rackmount Controller 50 Connecting the chassis to a switch 47 Connector Cleaning 24
117. e return the chassis and module to Agilent The boot kernel cannot obtain an IP address from the controller Check that all Ethernet cables are connected and all units in the network including the switch are powered up Check that you are using the correct Ethernet ports on the chassis and controller Check that the DHCP Server dhcpdNT is running on the controller If it is not start it If it is try restarting it The boot kernel cannot load the main kernel image Check that the FTP Publishing Service is running on the controller If it is not start it If it is check that the file E7900 64010 vxWorks st exists on the controller in the FTP directory and restart the FTP Publishing Service The main kernel cannot initialize its core devices Please return the module to Agilent The main kernel cannot initialize kernel services Please return the module to Agilent The main kernel cannot establish an Ethernet link with the controller Check that all Ethernet cables are connected and all units in the network including the switch are powered up Check that you are using the correct Ethernet ports on the chassis and controller The main kernel cannot initialize the IP stack or required services Please return the module to Agilent The main kernel cannot initialize the application services Please return the module to Agilent The main kernel cannot establish a connection with the resource manager on the controller The module
118. e selected transmitter channels via the user defined Path Errors amp Alarms Mask Only one error type at a time can be injected The following table lists the errors and error add modes available SONET SDH Single Timed Burst CV P B3 B3 yes yes REI P HP REI yes yes User Guide User Guide Getting Started 3 M1 only mode for REI L MS REI errors The M1 Only mode is for Tx and Rx 10G ports only and is provided for backwards compatibility with old network equipment It uses M1 only and saturates at 255 errors Normally at 10G two bytes MO and M1 are used which is sufficient to indicate up to 1536 errors M1 only mode can be selected independently for each port in a session The mode applies to both transmit and receive properties of the port On the transmit side it determines the overhead byte s in which REI L errors are generated and on the receive side it will determine in which byte s REI L MS REI errors are detected To select M1 only mode 1 Select the Advanced Setup button 2 Set the REI L MS REI mode field to M1 Only or MO and M1 as required Path Alarms The following Path alarms can be generated SONET SDH AIS P AU AIS LOP P AU LOP RDI P HP RDI UNEQ P HP UNEQ PDI P HP PDI You can select enhanced RDI P HP RDI alarms by selecting one of three user definable modes payload server and connectivity You can also set the PDI P alarm set C2 POH byte to any user definable value 99 3 G
119. ecting Ethernet adapter E19 x2 4 the tester switch and test interfaces To use the Dummy Module Manager The N2X Dummy Module Manager tool is used to define the dummy modules used as environment variables in the application s simulation mode The modules displayed in the Dummy Module List right pane in the N2xDummyModuleManager window correlate to the modules available when selecting ports for a test session To launch the N2X Dummy Module Manager tool From the DOS command line type c gt wish83 C Program Files Agilent N2X Platform Utilities N2X Dummy ModuleManager The N2xDummyModuleManager window is displayed 202 User Guide System Administration 7 To set up an environment variable 1 Right click My Computer and 21x select Properties General Network Identification Hardware User Profiles Advanced Open m Performance Explore f Performance options control how applications use memory Search which affects the speed of your computer Manage m Environment Variables Create Shortcut Environment variables tell your computer where to find certain Rename types of information 2 Select the Advanced Environment Variables tab click r Startup and Recovery Environment Startup and recovery options tell your computer how to start Variables and what to do if an error causes your computer to stop Startup and Recovery Environment Yariables 2 x mUser
120. ed Channel Configuration edit buttons to set up channels as required Select OK when finished Now copy the Transmitter channel setup to the Receiver select Copy gt Select the Pattern tab and set the transmitter to generate a PRBS Select the Gating Setup button on the Toolbar and select Continuous then OK To view service disruption time 10 Select the SRV DIS tab User Guide Measurements 8 Set up Guard Time 11 The guard time which is used to define the end of an error burst can be set between 100ms and 1600ms in 1ms steps You can define it for All Ports in a session or for a Selected port only select the On selected port only box 12 Select the Guard Time Edit button and enter the required value Set Warning Threshold You can set a Warning Threshold any service disruption times equal to or above your pre set threshold will be flagged and displayed red in color in the Port and STS Path HO Path Max Time and Last Time columns 13 If required set a Warning Threshold value 14 Start a measurement select the Gating Start button 15 Verify error free reception of the PRBS test pattern select the Overview tab Chassis View and check for a red border or channels indicating errors 16 Invoke a protection switch on a working section of the equipment under test that is transporting the PRBS 17 Select the SRV DIS tab view the list of ports in your session and check if the Max Time field gives a value for any port
121. ee operation is resumed ITU T recommend that protection switching should take 50 milliseconds or less While this is a difficult standard to meet a large part of the problem is in actually initiating the protection switch There are two methods to achieve this effectively e Create a LOS failure which will typically be detected in under 100 microseconds e Generate control parity errors on the protected system Each method has its own advantages and is ideal for particular test scenarios For more information see e Test Configuration for Measuring Service Disruption Time on page 313 e Contributors to Protection Switching Time on page 314 e Protection Switching Time Test Methods on page 316 e Measuring Protection Switch Time on page 317 e Understanding Service Disruption Test Results on page 323 User Guide Telecom Concepts 11 Test Configuration for Measuring Service Disruption Time Working _ gt Protection gt Transmission Element Transmission Element SONET SDH or POH DSn Tributary Tributary Loopback To measure service disruption time insert a PRBS pattern at the tributary side of the device under test looping it back on itself on the corresponding drop side tributary Monitor the received PRBS for errors as a switch occurs Result accuracy and reliability are based on the instrument s ability to measure the duration of error bursts associated with a protect
122. efault gateway Select Use the following IP address and enter them User Guide 199 7 System Administration To enable remote clients to set up connections with the tester PC s 07 4 OM U LORN software the Ethernet port that connects to the LAN must be first in the network binding order If you have set up your own PC to be a tester PC please see the next section To change the binding order of network ports on page 201 The second Ethernet port used to connect the switch and test interfaces uses the subnet 10 0 0 1 8 You must reset this if an address in this range is already being used in your LAN For details please see To change the IP address of the switch card on page 168 200 User Guide System Administration 7 To change the binding order of network ports On the tester PC the Ethernet port that connects the LAN which in turn connects remote clients must be first in the PC s network binding order Otherwise remote clients will not be able to connect to the tester software The order is configured properly on PCs from Agilent but may not be on PCs you set up as tester PCs 1 Right click My Network Places and select Properties Open f Network and Dial up Connections 3 iol x Explore 5 File Edit View Favorites Tools Search for Computers SES Advanced NEG Operator Assisted Dialing Map Network Drive gt L Dial up Preferences Disc
123. eived frames Possible causes e You did not turn on this test port s laser e Faults in the DUT or DUT cabling 3 Check the signal LED SIGNAL green The test port is receiving a valid optical signal from the DUT 4 Check the Laser LED LASER red The test port s laser is turned on 66 User Guide il amp amp LU Windows 2000 Server i Astart User Guide Installation 1 To power down the system Programs Documents Settings Search Help Run Shut Down Steps Note Ends your session and shuts down Windows so that you can safely turn off power cot e 1 Close all test sessions Do this before you power down any of the test equipment Select Shut Down from the Start menu then select Shut Down from the pop up window and click OK Once Windows has shut down switch off the System Controller N Switch off the power to the test equipment It does not matter in which order you switch off the test equipment The power switches are at the front of the chassis w 4 Disconnect the power cord from the back of the switch after the chassis have been powered down It is not necessary to power down the system before removing or inserting modules See Hot swapping modules page 26 67 1 68 Installation User Guide s Agilent N2X XM d User Guide KP e o e o 2 eo Using the Graphical User Interface e gt GUI Shortcu
124. el Configuration dialog edit keys to set up the transmitter channels Note that the Delete button deletes the channel type at the end of the list and substitutes it with STS 1 s SONET or AU 3 s SDH 15 Click OK when finished channel setup 16 Double clicking on a channel will set it to Selected or Unselected depending on its current setting Measurements are not made on channels that are set to Unselected the channel s that will be changed are shown in the system highlight color which is blue 17 Click on the Copy gt button to copy the Transmitter channel settings to the Receiver To set up payload pattern 18 Select the Pattern tab 19 Set the payload pattern for each of the Transmitter channels Right click on your mouse to display the pattern menu Double clicking on a selected channel alternates the pattern selection between For Tx PRBS23 PRBS23 INV and Word and for Rx PRBS23 PRBS23 INV Word and Live 20 Set up the Receiver channels to have identical payloads to the Transmitter Any differences will result in errors visible if you select the Overview or E A tabs on the Results window top right of display Click on the Pattern Copy gt button to copy the Transmitter pattern settings to the Receiver Note The Copy buttons on the Channels setup and Pattern tabs copy both the structure and the pattern i e both buttons perform the same task Switch off any pre configured errors and alarms 21 Select t
125. elect the file start htm e To load the application select the OmniberXM Software link e Follow the on screen instructions 206 User Guide System Administration 7 To Manage Licenses About software licenses When you buy an N2X system you will be set up with temporary licenses that you must convert to permanent licenses within 30 days To set up a permanent license you must e Convert temporary licenses to permanent licenses e Add the permanent licenses N2X software licenses are node locked that is each license is attached to a specific PC controller If required you can transfer a license from one PC controller to another If you buy a new software product without a system you will receive a letter that specifies your temporary license number You need to add the temporary licenses to your system before you can convert the temporary license to a permanent one To launch the License Manager On the desktop double click the N2X License Manager icon on your controller screen A Or from the Windows Start Menu select Programs gt Agilent N2X gt grisly Tools gt License Manager The N2X License Manager is displayed Click on the Help button in the N2X License Manager dialog window for instruction on how to e Add permanent licenses to a system e Add temporary licenses to a system e Convert temporary licenses to permanent licenses User Guide 207 7 System Administration 208 User Guide Agilent N2X XM
126. els available for capture are e K1 K2 byte pair e K1 K2 K2 2 byte triplet No other overhead byte groups are selectable for sequence capture Result Presentation The results are correlated for all ports configured for byte capture as shown Counts Gr 253 6 828 Se srv ois El oH Byte Capture gf a gt Decodes Linear APS C Ring APS Selected Ports 1 of 1 10171 Capture State Capturing click the Stop Gating button to complete the capture Frames Start Frame K1 1011 K2 101 1 1 236799 1 oo oo Ports and Byte Groups 2 136890 236800 gt 11 oo 3 16174291 373690 11 gt 11 4 4612401 16547981 11 gt 10 5 6593890 21160382 gt 00 10 User Guide Getting Started 3 The captured byte values are displayed in hexadecimal or text form selectable with the Decodes button alongside the following State Position in sequence Frames The number of frames for which that value persisted Start Frame The Frame Number at which the transition to this value took place where the first frame captured is numbered 1 This enables easy correlation of captured events across multiple ports Note that two events with the same Frame Number on different ports cannot be said to be the same frame Frames are terminated at each node in the network and also there can be significant delays through network elements It is however true to say that the events happened within 125 microseconds of each
127. er To review the system requirements see How many ports and sessions can your system support on page 29 About licensing When you install TS from the N2X XM Recovery CD it is installed in Application Server mode This mode is licensed and requires a license server installed in the domain usually the server itself There is no hard limit to the number of licenses that can be installed so the real limit is the resources available To use TS you need three licenses e Server license Conformance is met by installing a legal version of the Windows 2000 Server operating system 173 5 Remote Access 174 e Client Access License CAL A CAL is used for each remote connection that uses a Microsoft service e g Terminal Services file printer sharing The version of Windows 2000 Server shipped with N2X XM comes with 5 built in CALs e Terminal Services Client Access License TS CAL Each remote connection must also have a TS CAL Windows 2000 Server comes with an unlimited number of built in Windows 2000 Pro and Windows XP Pro TS CALs Other clients running operating systems like Windows NT XP Home ME 98 and 95 get a temporary license for 90 days after first connecting to a server When this 90 day temporary license expires you need to obtain your own permanent TS CAL licenses through Microsoft You could also enquire whether your corporate IT group has or can more easily obtain TS CAL licenses Normally a
128. er Guide Getting Started 3 Viewing the Analysis of SONET SDH Errors and Alarms The N2X XM provides the following types of error analysis e G826 and G828 e GR 253 You can select one of these standards per port for analysis but not both The choice is independent of the SONET SDH Signal Standard setting in the N2X XM Receiver Results Presentation Analysis measurements are made during a measurement period gating period When a measurement period has ended the final results for each statistic are available either via the GR 253 and G 828 tabs on the results display or via the system API When a new measurement period is started all results are cleared Results from previous measurement period are now unavailable Analysis results are updated once per second Section Regenerator and Line Multiplex path level results are displayed for all Receiver ports in a test session STS Path HO Path level results are displayed for all selected channels within the currently selected port gt To view the analysis of results 1 Select the GR 253 or G 828 tab as required 2 To set the analysis mode click on the All Ports GR 253 or All Port G 828 buttons to set all ports to the mode selected or click on the Analysis Mode button and set selected ports as required 3 Click on the Select Statistics button and choose the Section and HO Path Statistics to be displayed Use the Add Remove keys to move statistics within the Selected list 4 Cl
129. ered according to the G 707 TUG numbering scheme This scheme numbers the constituent channels of an SDH VC signal based on TUG positions For a VC4 signal there is a 3 digit scheme C B A where C represents the TUG3 number within the VC4 B represents the TUG 2 number within the TUG 3 and C represents the TU11 or TU12 number within the TUG 2 For a TU channel that occupies whole TU group its number within that group is designated 0 For example e TUI1 channels in a VC4 are numbered 1 1 1 through 3 7 4 e TU12 channels in a VC4 are numbered 1 1 1 through 3 7 3 e TU3 channels in a VC4 are numbered 1 0 0 through 3 0 0 For a VC3 signal there is a 2 digit scheme B A where B represents the TUG 2 number within the VC3 and C represents the TU11 or TU12 number within the TUG 2 For TU channels that occupy whole TU groups their number within that group is designated 0 For example e TUI11 channels in a VC3 are numbered 1 1 through 7 4 e TU12 channels in a VC3 are numbered 1 1 through 7 3 User Guide User Guide Instrument Setup and Use VT TU mode 4 Setting up the VT TU PDH Transmit Receive Interface gt To set up the transmitter receiver interface for VT TU operation 1 Select the Port you wish to set up for VT TU operation see To Start a session on page 82 for advice on starting a session and selecting ports 2 Select the Physical tab 3 Set the Transmitter and Receiver Signal Standard to SONET or SDH as
130. erwrite tab 3 Set the Type field to Transport Section From the Bytes field select a byte group from the drop down menu or click on the Select button From the Select Transport Section Overhead Bytes dialog box choose an STS3 STM1 Number and select up to 9 overhead bytes for overwriting Select OK when finished User Guide Transport Section overwrite STS Path HO Path overwrite User Guide Getting Started 3 5 Select Delay from the Mode field drop down menu 6 Click on the Frames cell in the OH Overwrite display and enter the number of Frames the selected bytes are to be delayed Click on the Start button to start the delay and Stop to stop the delay To perform a sequence overwrite on overhead bytes 1 Check that you have set up the Transmitter Physical Mode Type as required Select the Physical tab and set the Mode Type as required 2 Select the OH Overwrite tab Determine whether you wish to overwrite Transport Section or STS Path HO Path bytes and set the Type field as required Type field set to Transport or Section From the Bytes field select a byte group from the drop down menu or click on the Select button From the Select Section Overhead Bytes dialog box choose an STS3 STM1 Number and select up to 9 overhead bytes for overwriting Select OK when finished Type field set to STS Path or HO Path Click on the Bytes Select button and from the Select STS Path HO Path Overhead Bytes dialog box select the
131. etection time 318 User Guide User Guide Telecom Concepts 11 Generating LOS Failure This diagram shows three ways to generate a LOS failure LOS Generation Thru mode Disconnect Fibre Programmable attenuator gt PRBS Working Circuit Protection Circuit Tributary Loopback Tributaries Generate PRBS amp Measure Service Disruption WARNIN If you use Thru mode the LOS condition is induced by either switching off the instrument s laser transmitter or using its alarm generation controls to transmit LOS Both of these controls produce a predictable and instantaneous LOS condition and consequently enable repeatable and accurate protection switching time measurements to be performed The only source of measurement error associated with this method will be due to the LOS detection time being included in the service disruption time result This is the recommended method for generating a LOS failure when measuring protection switch times If you manually disconnect an optical fiber you will generate the LOS but it is not an instantaneous LOS The power level will roll off over the time taken to perform the disconnect Consequently variation in the speed of manual disconnection can lead to poor result repeatability Exercise extreme caution when disconnecting an optical fiber follow your organization s standard safety procedures 319 11 Telecom Concepts If you insert a programmable opt
132. etting Started gt To generate enhanced RDI P HP RDI path alarms 1 Select the E A Inject tab and set the Add Alarms Type field to STS Path HO Path and then select RDI P HP RDI as required 2 Click in the Enhanced box if appropriate 3 Select a value from the drop down menu payload server or connectivity The following table illustrates the value of bits 5 7 of the POH G1 byte for the options available Alarm On Alarm Off Non enhanced Enhanced G1 Bits 5 7 e 000 001 e e 100 Payload e 010 Server e 101 Connectivity e 110 100 User Guide Getting Started 3 Selecting which channels to insert Path errors alarms You can add errors alarms to all channels or just a chosen few This is achieved using the Path Errors amp Alarms Mask Channels shown in white will not seer be errored or alarmed Channels shown in red and with a tick are selected and can be errored alarmed The currently selected channel is shown in the system highlight color Right click on the mask to display a menu of options enabling you to select All or None for Error Alarm Inject or select the channel under the mouse for error alarm inject enable disable gt To set up the path errors amp alarms mask 1 Use the Path Errors amp Alarms Mask to select which channels you wish to add errors or alarms 2 Position the display cursor on the channel of interest and then double click the left mouse key Channels with a tick
133. ew byte value using the keyboard or use the Tab key on your keyboard to access a byte and then enter a new User Guide 107 3 Getting Started value Note You can only edit the bytes shown red or blue in color Editable bytes are shown black non editable bytes are greyed out 5 Use the Apply button to implement your edits before choosing another STS3 Number 6 Select OK when finished editing bytes to close the Dialog window or Cancel to undo your edits 7 Click on the Default All Bytes button if you wish to set the bytes to there default values Adjusting SPE or AU Pointer Values 108 You can check your systems ability to handle adjustments to SPE or AU pointer values A single pointer value is transmitted in all channels You can increment or decrement any pointer value or enter a new value via the Set New Pointer Value dialog with or without a New Data Flag When the pointer value is moved it moves simultaneously in all channels The transmitter Pointer SS bits are set to the following SONET 00 SDH 01 To adjust pointer values and or set a new data flag 1 Select the TOH SOH tab 2 Use the Pointer Control 1 or 1 buttons to increment or decrement the Pointer value or select the Edit Pointer button and enter a new Pointer Value 3 Select the New Data Flag checkbox if required Select OK to close the Set New Pointer Value dialog window User Guide Getting Started 3 Generating a J0 Section Tra
134. g disconnecting optical cables see Do not look into a Transmit laser on page 58 2 Select the Add Ports button on the Toolbar and select the modules and ports you intend to use for this measurement 3 Switch ON the laser for the modules you are using 4 Select the Connectivity tab click the button at the top right of the Results window if J1 Trace is not visible 5 The default condition is that all ports in your current session are included in the J1 Path Trace test If you wish to perform the test on only one port select the port then click in the On selected port only box Set up expected J1 s 6 You can set up the expected J1 trace messages either by manually entering a value by copying the values from the signal transmitted from a port or by copying the values from the signal at the receiver input Use the Copy Expected Messages From options to copy from a selected Tx port or from the Current Rx 7 Ifyou choose to copy values from the signals at the transmit or receive ports select the Copy Now button 217 8 Measurements 8 If you wish to enter a trace message manually select a Channel then the Expected J1 Path Trace field and enter your message To change the length of the J1 byte double click in the Length field for the required channel and select from the drop down menu Compare J1 s 9 Check you have selected the ports to be included in the test see step 2 10 Select the Start Test button The
135. ght mouse key works Select a block of channels e shift click selects all the channels between the last selected channel and the one currently under the mouse User Guide Instrument Setup and Use VT TU mode 4 e Ctrl A highlights all the channels e You can also use the keyboard arrow keys and the home and end buttons to navigate around the channels 3 Set up the following Path Overhead Bytes once you have selected the channels of interest SONET V5 Z6 Z7 and J2 see Generating a J2 Path Trace Message on page 152 SDH V5 J2 N2 and K4 Default All Bytes Select the Default All Bytes button to set all bytes to their default value User Guide 151 4 Instrument Setup and Use VT TU mode Generating a J2 Path Trace Message You can check for path routing faults following for example a protection switching event by monitoring the content of the J2 byte Refer to To monitor J2 path routing on page 156 for instructions on how to capture and monitor the J2 byte gt To generate a J2 path trace message Select the POH tab 2 Enter the required 16 byte message for each low order path or select a preset default message Selecting the Default Message button calls up a default message which identifies the originating port and HO and LO channel 3 If you set the transmitter to SDH mode with TU Mode enabled and then select an AU4 and TU3 channels when you select a TU3 the number of bytes displayed changes to 9 w
136. gt 9 270 1 C 4 data payload 9rows __ gt na wo VC 4 i 4 bytes _ gt VC 4 260 columns POH 290 User Guide Telecoms Concepts 11 SDH Payload Structure The payloads that can be carried in a SDH signal are outlined below e You can asynchronously map a framed unframed DS3 44 Mb s or E3 34 Mb s signal into a full VC 3 4 or you can bulk fill the VC 3 4 e You can transmit 28 TU 11s 21 VT12s or 7 TU 2s in a VC 3 or 84 TU 11s 63 TU 12s or 3 TU 3s in a VC 4 The TUs are structured into tributary unit groups TUG within the VC 3 4 A VC 3 contains 7 TUG 2s each TUG 2 can contain 4 TU 11s 3 TU 12s or 1 TU 2 A VC 4 contains 3 TUG 3s each TUG 3 contains 7 TUG 2s or 1 TU 3 e You can transmit concatenated payloads in SDH signals These types of payload reduce test times by testing the entire bandwidth in one go 155 Mb s STM n AET to 40 Gb s Buk Filled te VC dne GFP LAPS i l Buk Filled Ved GFP LAPS 140 Mb s if SH GFR LAPS 52 Mos STM 0 ma 34 Ans 0S3 Bulk Filed SHER ee A bors A pii Pointar Procassing Sinai STM n where n 1 4 16 64 or 256 Bulk Filed Bulk Filed Bulk Filed m 2 3 4 8 or 16 i DS1 Async on DS1 Floating Byte Sync User Guide 291 11 Telecoms Concepts SDH Overhead Bytes Four overheads are used to transport SDH signals across the spans of a network Multiplex Multi
137. h off any pre configured errors and alarms 21 Select the E A Inject tab 22 Ensure the Error Rate and Alarm buttons are switched off If any Errors Alarms are being generated the port concerned will have an E inject icon syringe with red tip in the Inject column Set Section Overhead Bytes and JO Trace Message 23 Select the SOH TOH tab 24 You can set all the bytes to a their default condition by selecting Default All Bytes or select the Edit K1K2 button to set up K1 K2 bytes or the Advanced button to set up Section Overhead bytes 25 Select a 16 or 64 byte JO Section Trace Message Set to a default message by clicking on the Default Message button or enter your own message Set POH bytes and J1 Section Trace Message 26 Select the POH tab 27 Set up the Path Overhead bytes and J1 Path Trace Message as required or select Default All Bytes and Default Message to set all bytes to their default condition Set up Gating period 28 Click on the Gating Setup button on Toolbar at top of display 29 Set the measurement Run period to Once also set the Test Duration 30 Click OK when finished User Guide User Guide Clear Measurements 8 Check Results window for any errors present 31 Select the E A results tab and check for any results present The channel setup for the selected module will be shown in the port mask Note that in the mask channels shown white indicate a correct signal pink is a historical error
138. he receiver s sensitivity range About single mode fiber Single mode fiber has a narrower core and provides one possible path for an optical signal to follow It is typically used in applications requiring a high degree of signal preservation for example SONET SDH communications 62 User Guide Installation 1 Step 6 Start the Software Verify physical layer connectivity between the tester and the DUT by starting the N2X XM Transport application and turning on transmissions Steps 1 Launch the application through the Windows desktop icon or through the Start menu 2 Double click the desktop icon shown Or from the Start Menu select Programs gt Agilent N2X gt Launchpad gt OmniberXm lt Version gt ad lim N2 The Test Session dialog is displayed Launchpad User Guide 63 1 Installation to 3 2 3 Choose the controller you are connecting ry 4 Create a new test session restore a saved Connect to en evisting session session or connect to an existing session 5 Click OK to display the Port Selection dialog It may take a few minutes for the Port Selection dialog to appear 10G 1550nm 10G 1550nm 10G 1550nm 10G 1550nm 10G 1310nm 10G 1310nm 6601 10G 1310nm E 660171 6602 10G 1310nm 6 Select the test ports that are currently connected to the DUT Click the OK button to display the N2X XM application window User Guide User Guide ons amp Ad
139. he E A Inject tab 22 Ensure the Error Rate and Alarm buttons are switched off If any Errors Alarms are being generated they can be seen by selecting the E A tab in the Results display or checking the Port status bar for an error or alarm indication in the Inject column User Guide Measurements gt Set Section Overhead Bytes and JO Trace Message 23 Select the TOH SOH tab 24 You can set all the bytes to a their default condition by selecting Default All Bytes or select the Edit K1K2 button to set up K1 K2 bytes and the Advanced button to set up Section Overhead bytes 25 Select a 16 or 64 byte JO Section Trace Message Set to a default message by clicking on the Default Message button or enter your own message gt Set POH bytes and J1 Section Trace Message 26 Click the POH tab 27 Set up the Path Overhead bytes and J1 Section Trace message as required or select Default All Bytes and Default Message to set all bytes to their default condition Set up Gating period 28 Click on the Gating Setup button on Toolbar at top of display 29 Set the measurement Run period to Once also set the Test Duration 30 Click OK when finished gt Check Results window for any errors present Select the E A results tab The channel setup for the selected port will be shown in the Port mask White is a correct signal pink is a historical error and red is a current error In the Port and Channel results display green bullets
140. he Tools Menu Tel Shell A window similar to the one opposite is displayed allowing you enter Tcl commands PROGRA 1 Tel bin telsh package require AgtClient 8 2 About the Tools Menu This provides help on how you can customize this menu and add other 7 j AgtSetServerHostname xmtest 8 menus to launch your own software applications xmtest g and scripts Refer to the XM online help provided with your system for more information on how to customize the menus User Guide 79 3 Getting Started 80 Help Menu Selections are Contents To Contact Agilent and About N2X XM Contents Opens up the XM online help To Contact Agilent Provides information on how to contact Agilent About N2X XM States the current application software version build and date Configuration Hide Show To Hide the Configuration part of the display Configuration 2E Hide Show 1 Click on the Configuration Hide icon to hide all the configuration part of the display and allocate all of the display to the Results window Selecting Show will return to the normal display Clear History on all ports el Clear 1 Click on the Clear history icon to remove historical error indication chassis ports shown pink from the instrument GUI User Guide User Guide Getting Started 3 Configure a session offline With N2X XM you can configure a new session offline while there is an online session in progress This saves you time a
141. he session you can also save the current session configuration to a file xml Closing a session If you choose the Close a session option both the GUI and the session close down completely If you have not saved the configuration for the session in a file the configuration is lost Leaving the session active If you choose to Leave the session active the GUI closes down but the session stays active When you next start up the GUI and a Test Session you can select the Connect to an existing session option and return to the active session To close a session On the N2X XM Toolbar select File then Exit 2 Determine whether you wish to close the session or leave the session active Select the required option 3 Decide whether you wish to save the current test configuration in a file before exiting If No select Exit if Yes select Save then exit To save a Session s configuration in a file 1 Select File Save or if closing a session and you wish to save select the Save then exit button 2 Enter a name for your file in the File name field 3 To add a comment click on the Port field then on the Comment field under Comment and enter the required text 4 Determine whether you wish to save a Complete or Partial Session If you select a Partial Session also select from the list of Settings those that you wish to save 139 3 Getting Started 140 User Guide Agilent N2X XM User Guide 4 Instrument Setup and Use VT TU
142. hortcut If you need to install software onto multiple remote PCs you can e copy all files from the CD into a temporary folder on the controller e set up that folder for sharing right click the folder in Windows Explorer and click Sharing e remotely install the software from the controller s hard drive double click Network Neighborhood or My Network Places the tester PC then the folder containing the unpacked software then double click the Setup exe for the software 192 User Guide Agilent N2X XM User Guide 7 System Administration To change the password page 196 To create a user account page 196 To set a PC s host name and domain page 198 To set a PC s IP addresses page 199 To change the binding order of network ports page 201 To list a PC s IP addresses page 202 To use the Dummy Module Manager page 202 To set up an environment variable page 203 To start and stop services page 204 To configure the tester for printing page 205 To recover from system problems page 206 To Manage Licenses page 207 2 a Agilent Technologies 193 J 194 System Administration CAUTION Network Configuration It is recommended that you consult your network system administrator to ensure correct configuration of the N2X XM on your network and to determine any security restrictions to networking the tester Caution Support for modified or non Agilent hardware and software Disregard any instructions in
143. ical attenuator in to the working circuit you have a more predictable method of inducing LOS However it may not fully address the issue of measurement error due to the optical power level rolling off over a finite period of time Most programmable optical attenuators have a specified response time 320 User Guide User Guide Telecom Concepts 11 Generating Excessive Errors SF Trigger With the instrument in Thru mode inject a high rate of errors into the parity check byte s associated with the protection system under test In a Multiplex Section Line protected system B2 parity errors are used while HP B3 and LP B3 BIP 2 parity errors are used for High order Path and Low order Path protected system respectively In the following example the system under test is protected at the Multiplex Section Line level Working Circuit Protection Circuit ee Tributaries Tributary Loopback To generate excessive errors and create a Signal Fail condition in the system under test inject B2 errors at rate that exceeds the receiving NE s provisioned threshold for the Excessive Error condition To always exceed the provisioned error threshold inject the maximum error rate supported by the parity check bytes in this case continuously error all bits of all B2 bytes Since errors are only injected into the B2 parity bytes they will not affect the traffic being carried Consequently no errors will be added to the PRBS test
144. ick OK when finished 5 Click on the Start gating button to obtain Analysis results User Guide 133 3 Getting Started To log events to a file 134 You can log error results alarms and statistics which have occurred during a measurement period to a file Logging is only enabled during a measurement gating period Results are logged to a file in text format csv Types of Logging The following items are logged e Alarm Second Events Error Events e Reports Statistics The N2X XM system controller logs each of these items in separate files Alarm Second Event Logs and Error Second Event Logs are created written as they happen in real time You can choose to log either or both Statistic Reports are produced and logged at pre determined intervals during gating and also at the end of a period The interval between reports is set by the user The minimum configurable interval is 10 minutes and the maximum 1 hour in seconds All results are cumulative over the entire measurement gating period Alarm Events These events are recorded along with a time stamp indicating when they occurred Minimum resolution for event reporting is one second Both the start and end of an event is logged The start is logged as a SET event and the end as a CLEAR event Error Second Events These events are also recorded along with a time stamp indicating when they occurred Minimum resolution for event reporting is one second These
145. ient tcl cm i X ki AgtMfg tcl EnB TelScript 10 12 99 5 32 PM Copy this Tcl package to In AtoTest tel 6KB TclScript 4 23 99 2 52 PM E doc 74 pkalndex tel 3KB TelScript 11 8 99 11 43 AM the remote computer 8 H include Tel lib directory x Fl Accessories oo Programs gt fin Administrative Tools gt S Documents gt 63 Startup k Readme BD tihe e 2 On the remote computer launch Tcl Eh Settings gt Internet Explorer f z Es Tel Search gt expect 5 21 E Ss VNC gt 76 Widget Tour A RouterTester QARobot sgr Wish g Run __ _ Windows 2000 Server 3 Include the tester s Tcl package package require AgtClient 7 AgtOpenSess ion Omniber amp m 1 4 Connect to a running test session or open a new one 7 User Guide 179 5 Remote Access To set up a VNC client To install VNC If the remote computer is a Win32 based PC i e Windows 95 98 2000 NT4 follow the same steps outlined for the tester PC under To install VNC on page 170 If the remote computer is another type of computer download the appropriate VNC package from the AT amp T Research web site http www realvnc com For details please see the documentation at the above web site If you encounter problems please see the FAQ web page http www realvnc com faq html To control the tester remotely 1 On the remote computer launch the VNC viewer On a PC select Start
146. iguration 2E Add On On Single amp 5 maae ile e e l A On 22 URA Of OC 192 OC 192 6502 1 A On 23 UR 2 5G 1310nm R Terminal Tx Ax OC 48 OC 48 6502 2 A On U R 2 5G 1310nm R Terminal Off OC 48 OC 48 6503 1 A On U R 10G 1310nm R Terminal Of OC 192 0C 192 6504 1 On ue 2 5G 1550nm mi Terminal Tx Ax STM 16 STM 16 penon fo is nee accn re ae nran nran gt To turn lasers on off 1 Select All Lasers On from the Ports Toolbar to turn all the lasers on or select All lasers Off to turn them off Setting up the Transmitter and Receiver Interface gt To set up the transmitter and receiver interface 1 Select the Physical tab 2 Set the Transmitter and Receiver Signal Standard to SONET or SDH as required 3 Set the Signal Rate if applicable To set line rate offset 4 You can offset the Transmitter Line Rate by plus or minus 100 ppm The resolution is ppm Click on the Edit button then enter the value required and click on OK 5 You can switch off or on the laser for the selected Port by clicking on the Laser button User Guide 85 3 Getting Started Select Terminal or Thru mode The following procedures illustrates how to select Terminal or Thru mode If your N2X XM has option 010 fitted you can also select VT TU mode However Thru mode and VT Mode are mutually exclusive If Thru mode is selected VT Mode is disabled and vice versa Mode YT Mode Off T Tye Cr Thru Mode Ty
147. in You need the Agilent N2X OmniberXM CD ROM If you are installing to a new remote computer you must ensure IIS FTP is installed and enabled For details see To install and enable IIS FTP on page 191 If you are upgrading software you must uninstall the previous version For details see To uninstall a previous version on page 191 To install upgrade software 1 Insert the CD ROM into the CD ROM drive The CD ROM should autostart and display the Home page 2 Double click on OmniberXM Software 3 Double click the file Setup exe This launches the InstallShield wizard Follow the prompts and accept the defaults in the installation Select a Full Installation If you are installing the software on a controller PC or a remote PC that will run Demo Mode i e to simulate connected test interfaces GUI Installation If you are installing on a remote PC that will not run Demo Mode 5 When the installation has finished copying files it restarts the PC 190 To verify that the installation was successful log in and launch the Diagnostics Tool as described in Step 4 Power up the System in the Installation chapter On the Diagnostic Tool click Run system tests to verify that all files were installed User Guide User Guide Software Install Upgrade 6 To install and enable WS FTP File Transfer Protocol FTP a component of Internet Information Services IIS is required to download firmware t
148. indicate a correct state red an error and pink historical errors Note White is the system window default color Selecting the Overview tab will also give you an indication of the presence of results 31 Click on the Clear icon on the Toolbar to clear any historical errors If there are any channels still shown red determine the cause Check the errors and alarms being received and reconfigure the N2X XM or DUT appropriately User Guide 223 8 Measurements 224 Configure N2X XM to generate errors 32 In the Setup for Port window bottom left select the E A Inject tab 33 Select the Type of errors you wish to add and also the Rate You can use the Path Errors and Alarms Mask to select which Channels you wish to error Double click on a Channel to turn it off or on if already off Channels not selected for error alarm inject are shown white in color 34 Select the Add Errors Mode Timed Burst or Manual If you selected Timed Burst also set up the Timed Burst Parameters Select Statistics to be displayed 35 On the N2X XM Results window select the Counts tab The Port mask will indicate the presence of errors If only Transport errors are present only the outside border of the Port mask is shown red If Path errors are present then both the outside border and the errored channels are shown red 36 Click on the Select Statistics button 37 Under Transport Statistics and STS Path HO Path Statistics click on Error Counts and R
149. ing 153 W Warranty and service 22 What is not logged 135 Window Shortcuts 70 328 User Guide Copyright 2004 Agilent Technologies Specifications subject to change Printed in U K J7241 90016 www agilent com comms N2X Agg Agilent Technologies
150. io min 6dB at 1310nm 8 2dB at 1550nm Min sensitivity 11dBm at 1310nm 14dBm at 1550nm 235 9 236 Specifications Tx Eye clock RX PORT 1 TX PORT 1 Tx Eye clock RX PORT 1 Tx clock sync Tx clock can be synchronized to either BITS MTS or internal 10 M through the XM chassis or to recovered clock Tx clock performance Frequency 0 2 ppm Stability 1 0 ppm year max The eye clock frequency is set to the line rate divided by 16 e g 622 08 MHz for 9 95 GHz SONET SDH line rates Max input power 1dBm Max input power damage level 3 dBm Optical pulse mask SDH S 64 2 64 3 ITU T G 691 SONET OC 192 reach to VSR 1 J7244A 45A Modules Wavelength Tx 1550 nm or 1310 nm Rx 1250 to 1600 nm Fiber power output 1310nm Min 5 dBm max 0 dBm single mode 1550nm Min 2 dBm max 3dBm single mode Tx spectral width lt 1 nm at 20dB Extinction ratio min 8 2 dB Optical eye mask Complient with Telecordia GR 253 and ITU T G 957 Tx clock sync Tx clock can be synchronized to either BITS MTS or internal 10 M through the XM chassis or to recovered clock Tx clock performance Frequency 0 1 ppm Stability 1 0 ppm year max The eye clock frequency is set to a quarter of the line rate e g 622 08 MHz for 2 48832GHz SONET SDH line rates Min sensitivity OC 3 24 dBm OC 12 24 dBm OC 48 20 dBm Max input power 2 5 dBm Max input power damage level 4 dBm User
151. ion monitoring byte contains the following information Bits 1 and 2 contains BIP 2 error analysis Bit 3 is set to 1 Bit 4 contains incoming AIS Bit 5 contains Tandem Connection Remote Error Indication TC REID Bit 6 contains Outgoing Error Indication OEI Bits 7 and 8 contain a 76 byte multiframe containing a tandem connection access point identifier TC APId TC RDI ODI or reserved For more information see N2 bits 7 and 8 Multiframe Structure on page 309 Number of data bytes separating fields VC 11 25 VC 12 34 and VC 2 106 User Guide User Guide Telecoms Concepts 11 Byte Label Description K4 LOAPS The lower order automatic protection switching APS and enhanced RDI Bits 1 to 4 contain the APS Bits 5 to 7 contain the enhance RDI For more information see K4 bits 5 to 7 Coding and Interpretation on page 310 Number of data bytes separating fields VC 11 25 VC 12 34 and VC 2 106 307 11 Telecoms Concepts V5 bits 5 to 7 Signal Label Bits 5 to7 Description 000 Unequipped or supervisory unequipped 001 Equipped non specific 010 Asynchronous O11 Bit synchronous 100 Byte synchronous 101 Reserved for future use 110 0 181 test signal TSS4 111 VC AIS 308 User Guide Telecoms Concepts 11 N2 bits 7 and 8 Multiframe Structure Frame N2 Bits 7 and 8 Description Number 1to8 Frame alignment signal 1111 1111 1111 1110 9to12
152. ion published by the governing standards body Telcordia or ITU T This section deals with the challenge of making meaningful and repeatable measurements of Protection Switch Time Protection Switching Summary Head End Node Tail End Node Failure Working Circuit The diagram shows the state of the nodes after a switch has taken place A typical sequence of events is listed below 1 The Tail End node detects the failure and signals the Head End to request a Protection Switch 2 The Head End node performs a Bridge or Bridge and Switch operation and sends back an acknowledgement 3 The Tail End node receives the acknowledgement and performs a Bridge and Switch operation then finishes by sending a status message to the Head End 316 User Guide User Guide Telecom Concepts 11 4 The Head End node finishes by performing a Switch operation if necessary Measuring Protection Switch Time The Protection Switch Time of a transmission system should be equal to or less than 50 milliseconds The switching process is dominated by the protocol processing time at each node on the Protection Circuit The ITU T standards specifies Protection Switch Time and the detection times for various SF and SD conditions Protection switching can be initiated by the following events 1 Signal Fail SF usually loss of signal loss of framing or a very high error ratio such as 10E 03 or greater 2 Signal Degrade SD a persistent ba
153. ion switch event By measuring service disruption time from the tributary side of the system under test the measurement will be independent of the protection switching architecture This setup supports all protection switching architectures The performance of the system under test cannot be affected by the instrument since results are obtained through passive monitoring of the PRBS for errors User Guide 313 11 Telecom Concepts Contributors to Protection Switching Time Failure detected by NE protection switch triggered Detected Error Burst m Instrument regains alignment to test pattern Varies with type of failure LOS failures AU Pointer 125 to 375yas ITU T G 783 na detected la lass hen 48 TU Pointer 500 to 1500 ps ITU T 6 783 skint s Unframed Pattern Oys instrument When a protection switch is triggered a fiber break can trigger a protection switch it results in the PRBS test pattern being corrupted for a short period The duration of this corruption is controlled by the following factors e The system s fault detection time e The system s protection switching time e The time taken by the instrument to re align to the pointers SONET SDH tributary only and test pattern System Fault Detection Time For fault detection time this is achieved by triggering the protection switch using a failure that results in a LOS defect Although ITU T G 783 2000 defines LOS detection time as being in the pr
154. iplexer Section Remote Defect Indication Multiplexer Section Remote Error Indication Multiplexer Section Terminal Equipment Mean Time Between Failures Maximum Tolerance Input Jitter Multiplexer New Data Flag Network Element Non Frame Alignment Signal User Guide User Guide OAM OC OCh ODI ODU OEI OH OLTU ONNI OOF OOM OPU OS OSC OSI OTM OTN OTU P AR P BIP PBX 11 Operations Administration and Management Optical Carrier Optical Channel Outgoing Defect Indication Optical channel Data Unit Outgoing Error Indication Overhead Optical LIne Terminal Unit Optical transport Network Node Interface Out Of Frame Out Of Frame Optical channel Payload Unit Operating System Optical Supervisory Channel Open Systems Interconnection Optical Transport Module Optical Transport Network Optical channel Transport Unit Peak to Average Ratio Synchronous Transport Signal Path Bit Interleaved Parity error also CV P Private Branch Exchange 259 11 260 PC PCM PCS PCR PDH PES PHY PLM PLM P PLM V PMD POH PoP POS PPP PRBS PSN PSTN PTE PUAS QoS Personal Computer Pulse Code Modulation Physical Coding Sublayer Peak Cell Rate Plesiochronous Digital Hierarchy Percentage Errored Seconds Physical layer device Payload Label Mismatch Synchronous Transport Signal Path Payload Label Mismatch
155. isplay for better viewing For an extra large display of the Overview Chassis or Port view set the Configuration on top Tool bar to Hide This hides all the Configuration window settings and allocates the whole display to the Overview window To return to showing the full configuration window select Show 126 User Guide Getting Started 3 4 If there are any Transport or Path errors present on a port there will be a red border around the port channel mask If there are Path errors then the errored channels will also be shown red To investigate an errored channel further position the controller cursor on the channel of interest and double click the left mouse key This will close the Overview window and open the E A window 5 You can now view the errors and alarms for the selected port and or channel Port Error Alarm Mask Port 101 1 sts rath aise tore Rove ask z Er E ee o e gt e e e Channels shown a 2 red are errored e s Pink channels e 134 e indicate historical e 151 5 s 152 e 5 errors 453 7 z Blue channel is e 16 1 e e 16 2 e e e currently selected EE a channel Clear History Select the Clear History button to clear all the historical error alarm events On selected port only Select this function to only clear historical errors from a user definable port The order in which channels are displayed is automatically sorted such that those with errors al
156. ith a 16 byte or 64 byte J1 Path Trace Message offered 152 User Guide User Guide Instrument Setup and Use VT TU mode 4 Viewing VT TU Measurement Results Viewing VT LO PDH Path Errors Use the following procedure to view low order path errors gt To view VT LO path errors 1 Ensure VT TU Mode is set to On in both transmitter and receiver selectable via the Physical tab Select the E A tab and view which Ports or Channels are errored errors are shown red in color Click on an errored port or channel or select the Counts tab and then select a port Use the Port mask to select individual channels for viewing For an enlarged Port mask display making it easier to select channels click on the zoom icon at the top right corner of the Port mask For SONET STS Path and VT Path errors are displayed For SDH HO Path and LO Path errors are displayed PDH LOF and PDH AIS results are given at the extreme right of the VT Path LO Path display Viewing VT LO PDH Alarms You can view the time alarms are active as follows gt To view VT LO PDH alarms 1 Select the E A tab in the Results part of the display 2 Select the port you which to check for alarms 3 View the alarms present in the VT LO path results display 4 Use the Port mask to select individual channels 153 4 154 Instrument Setup and Use VT TU mode Monitoring Received VT TU Path overhead bytes You can view a snapshot of all nin
157. ition Locked out of protection Forced switch Signal fail high priority Signal fail low priority Signal degrade high priority Signal degrade low priority Unused Manual switch Unused Wait to restore Unused Exercise Unused Reverse request Do not revert 296 User Guide Telecoms Concepts 11 ITU T G 783 Protection Switching Protocol 0000 No request Bits 5 to 8 Selects channel used by APS messages K2 Condition Bits 1 to4 Selects bridged channel used Bit 5 Determines APS architecture Bits 6 to 8 MS RDI 110 MS AIS 111 All other combinations of bits 6 to 8 not used User Guide 297 11 Telecoms Concepts Ring APS Messages ITU T G 741 Protection Switching Protocol K1 Bits 1 to 4 1111 1110 1101 1100 1011 1010 1001 1000 0111 0110 0101 0100 0011 0010 0001 0000 Bits 5 to 8 Condition Locked out of protection span or signal fail protection Forced switch span Forced switch ring Signal fail span Signal fail ring Signal degrade protection Signal degrade span Signal degrade ring Manual switch span Manual switch ring Wait to restore Exercise span Exercise ring Reverse request span Reverse request ring No request Destination node ID 298 User Guide Telecoms Concepts 11 ITU T G741 Protection Switching Protocol K2 Condition Bits lto4 Source node ID Bit 5 Path code 0 short path 1 long path Bits 6 to 8 000 Idle
158. k you will need to remove the rubber feet Stack the controller switch and chassis The stack must not be more than 17U high including the switch User Guide Installation 1 To rack mount a chassis Steps 1 Attach the mounting ears to each side of the chassis 2 Holding the chassis in place clip 4 nuts to the rack and secure the mounting ears to the front two posts Notes Use the ears provided to mount chassis in an EJA standard 19 rack The chassis is secured to 2 posts only on 4 post racks the chassis mounts to the front 2 posts User Guide 37 1 Installation Set up the switches To rack mount switches FS726 hpa saa 1 7 T o T ih al a i al al al al 4848 ROPE Steps Notes 38 Se aN K va D 1 Secure two ears to each switch The switches ears are in its accessories bag There are 4 x 10mm M4 cross head screws 2 Secure the switch to the rack using the 4 screws 5 8 12 24 cross head screws Leave a gap above or below the switch to run cables from the front of the switch to the back of the modules and chassis You may have either one of these switches e 8 Port this was supplied with the single processor Controller and Laptop e 24 Port this was supplied with the dual processor high performance Controller It may be possible to mount the switch facing backwards to make cabling easier The 8 port switch cannot be
159. k Drive up Connections Lal Create Shortcut Rename Properties 2 Right click a LAN port and select Properties Important LAN Port 1 must connect to your company LAN and Port 2 must connect to the tester switch modules Otherwise you will experience communication problems Properties To Module Hub Properties 2x Internet Protocol TCP IP Properties RAE General Sharing General You can get IP settings assigned automatically if your network supports this capability Otherwise you need to ask your network administrator for the appropriate IP settings Obtain an IP address automatically Connect using EF Intel R PRO 100 MiniPCI Components checked are used by this connection E a Client for Microsoft Networks IP address 10 0 0 1 vi Fie and Printer Sharing for Microsoft Networks Subnet mask 25 0 0 0 v Internet Protocol TCP IP Default gateway l i y 5 C Obtain DNS server address automatically Install Use the following DNS server addresses Preferred DNS server l x Alternate DNS server s x 3 Select TCP IP 4 Identify the IP address the LAN port is to use click Properties If your network uses a DHCP server to auto assign IP addresses simply select Obtain an IP address automatically If your network does not ask your system administrator for an IP address subnet mask and d
160. l session by clicking the appropriate radio button If you select a partial session you can choose from the settings displayed in the bottom half of the dialog Select Open This will apply the file settings to the current session gt To save session configuration to a file Save a session configuration you wish to keep to a file The file can then be restored on demand 1 2 3 4 5 Select File then Save from the menu Enter a name in the File name field Set Save as type to Configuration Files xml Click on a Port and add a Comment if required Determine whether you wish to save a Complete session all the settings for that session are retained or a Partial Session By User Guide Getting Started 3 default test configuration files are stored in C Program Files Agilent N2X OmniberXM config XM To set a label 1 Select File then Set label 2 Enter a label for the current session in the Session label dialog window To Reset configuration to system default settings 1 Select File then Reset Choosing reset will cause you to lose all selections and data 2 Decide whether you wish to save the current configuration to a file before resetting If not select No To Configure Logging Please refer to To log events to a file on page 134 To Exit 1 Select File then Exit See To close a session on page 139 for a more detailed explanation Tools Menu Selections are Tcl Shell and About t
161. l set it to Selected or Unselected depending on its current setting Measurements are not made on channels that are set to Unselected they are shown white in color TU 12 VT 2 s are colored purple and TU 11 VT1 5 s a shade of Brown TU 3 s are shown in a solid orange color 17 Click on the Copy button to copy the Transmitter channel settings to the Receiver To set up payload pattern 18 Select the Pattern tab 19 Set the payload pattern for each of the Transmitter channels Right click on your mouse to display the pattern menu Double clicking on a selected channel alternates the pattern selection between For Tx PRBS23 PRBS23 INV and Word and for Rx PRBS23 PRBS23 INV Word and Live Selecting the zoom icon at the top right corner of the Transmitter Pattern display gives a larger display making it easier to select set channels You can also use the keyboard spacebar to toggle pattern selections when you position the cursor over the selected channel 20 Set up the Receiver channels to have identical payloads to the Transmitter Any differences will result in errors visible if you select the Overview or E A tabs on the Results window top right of display Click on the Copy gt button to copy the Transmitter pattern settings to the Receiver 227 8 Measurements 228 Note The Copy buttons on the Channels and Pattern tabs copy both the structure and the pattern i e both buttons perform the same task Switc
162. lects channel used by APS messages User Guide 277 11 Telecoms Concepts Protection Switching Protocol K2 Condition Bits 1 to4 Selects bridged channel used Bit 5 Determines APS architecture 0 1 1 Architecture short path 1 1 N Architecture long path Bits 6 to 8 100 Provisional mode is unidirectional 101 Provisional mode is bidirectional 110 RDI L 111 AIS L All other combinations of bits 6 to 8 not used 278 User Guide Telecoms Concepts 11 Ring APS Messages Telecordia GR 1230 Protection Switching Protocol K1 Bits 1 to 4 1111 1110 1101 1100 1011 1010 1001 1000 0111 0110 0101 0100 0011 0010 0001 0000 Condition Locked out of protection span or signal fail protection Forced switch span Forced switch ring Signal fail span Signal fail ring Signal degrade protection Signal degrade span Signal degrade ring Manual switch span Manual switch ring Wait to restore Exercise span Exercise ring Reverse request span Reverse request ring No request Bits 5to8 Destination node ID User Guide 279 11 Telecoms Concepts Protection Switching Protocol K2 Condition Bits 1 to4 Source node ID Bit 5 Path code 0 short path request 1 long path request Bits 6 to 8 000 Idle 001 Bridged 010 Bridged and switched O11 Extra traffic ET on protection channels 100 Not used 101 Not used 110 RDI L 111 AIS L 280 Use
163. line terminating equipment M1 REI L STS n line remote error indication defined for n gt 3 conveys the B2 errors detected by the downstream line terminating equipment E2 Orderwir Provides express orderwire channel for voice e communication between line terminating equipment User Guide 275 11 Telecoms Concepts Byte Label Description H1 to H3 The payload pointer contained in the H1 and H2 bytes of the line overhead designates the location of the byte where the STS SPE begins The last ten bits bits 7 to 16 of H1H2 carry the pointer value 0 to 782 The H1 and H2 bytes are also used to indicate a concatenated payload by transmitting the pointer word 1001XX1111111111 in the second to Nth STS 1 in an STS Nc The H3 bytes is allocated for SPE frequency justification purposes and can carry live information from a STS SPE when a negative pointer adjustment occurs 276 User Guide Telecoms Concepts 11 Linear APS Messages Telecordia GR 253 CORE Issue 3 Protection Switching Protocol K1 Bits 1 to 4 1111 1110 1101 1100 1011 1010 1001 1000 0111 0110 0101 0100 0011 0010 0001 0000 Condition Locked out of protection Forced switch Signal fail high priority Signal fail low priority Signal degrade high priority Signal degrade low priority Unused Manual switch Unused Wait to restore Unused Exercise Unused Reverse request Do not revert No request Bits 5to 8 Se
164. m Miesos1 6601 106 1310nm 1 6601 106 1310m 6602 10G 1310nm 1 ssori D 6 Select the test modules to use in your test Note any modules currently in use in a test session are shown blue on the display and are unable to be selected the tic box is greyed out 7 Select the ports to use in your test 8 Click OK to display the N2X XM Session window When selecting test ports on N2X XM test modules select ports on consecutively numbered modules Because of the event line used to synchronize these types of modules Thus if you select ports on chassis 1 and 3 in one session you cannot select ports from chassis 2 and 4 in another session You can select ports on chassis 2 or 4 but not them both together User Guide 83 3 Getting Started 84 Ganged Port Operation Single The Ganged Port feature allows you to perform the same operation on all relevant ports on an N2X XM session The timing of the events on each port is not synchronous but is as close in time as internal processing allows This feature is supported for all user interfaces Ganged Port operation is only available for the following instrument features Laser On Off All ports within a session can have their transmit lasers switched on and off by a single operation Select the appropriate icon The On Off buttons on the Toolbar control both errors and alarms at the same time see below Errors On Off All relevant ports within a session can ha
165. mine your system limitations are e 128 MB RAM if the Terminal Server is installed plus e 128 MB RAM for each user session plus e 4MB RAM for each port this may be the same memory reserved for user sessions but do not include memory reserved for the Terminal Server Regardless of whether you have the Terminal Server installed and regardless of the number of user sessions you run make sure that e with up to 15 ports you have a minimum of 128 MB RAM recommended 256 e with16 ports or more you have a minimum of 256 MB RAM 29 1 30 Installation CAUTION System Controllers N2X Controllers N5543A N2X Laptop Controller N5544A N2X Rackmount Controller Option AQ2 14 inch TFT monitor and keyboard in rackmount drawer N5545A N2X High Performance Rackmount Controller Option AQ2 14 inch TFT monitor and keyboard in rackmount drawer Option 130 Install N2X XM software Monitors are not included with rack mountable controllers and can be ordered through option AQ2 Option AQ2 provides a flat panel monitor and keyboard in a 2U high rack mountable drawer assembly Rack mount controllers are shipped with Windows 2000 Server Edition and laptop controllers with Windows 2000 Professional Each controller includes an Ethernet switch One controller Ethernet port is required to connect to the chassis and or switch The other controller Ethernet port can be used to connect the controller to an extern
166. n Bit errors at a high enough rate to invoke a path protection switch event Use the Path Errors and Alarms Mask to select the channels to be errored 25 Select the SRV DIS tab and view the list of ports in your session and check if the SRV DIS field indicates Yes for any port 26 Select any port that has SRV DIS flagged and view the Max Time Last Time and Count results in the channel list window You can use the Port channel mask to quickly examine the results for a particular channel 27 Select Gating Stop when you wish to end the measurement User Guide Measurements Detecting Path Routing Faults User Guide The J1 Connectivity Test detects path routing faults e g following a protection switch event The user must first configure a set of reference Expected J1 trace messages then capture the received Measured J1 Trace Messages The N2X XM then compares the Expected J1 messages with the captured Measured messages and produces a result indicating whether there are any received J1 s in error mismatched Use the following procedure to monitor J1 Path routing To monitor J1 path routing The following procedure assumes that you have already set up the N2X XM to run a test session 1 Connect the N2X XM TX PORT 1 port via a suitable optical cable and attenuator to the device under test DUT Connect the output of the DUT to the N2X XM RX PORT 1 port Be aware of the safety factors involved before connectin
167. n Status Messages S1 bits 5 to 8 on page 281 gt To generate a S1 synchronization status message 1 Select the TOH SOH tab st 0000 0000 STU Synchronized Traceability Unknown 7 b1 b4 b5 b8 Binary Advanced Default All Bytes 2 S1 b5 b8 indicate the levels of synchronization being used at the transmit end of a line span Set the Synchronization Status Message bits as required from the drop down menu When you select a message its binary value is automatically displayed Unused bits b1 b4 are set to 0000 106 User Guide Getting Started 3 Editing Transmitter Section Overhead Bytes You can assign values to the transmitter Section Overhead bytes using the Advanced Configure Overhead window All bytes in any STS 3 position can be selected to be individually set with the following exceptions e B1 B2 JO and H1 H2 and H3 in STS 3 1 B2 H1 H2 H3 in all other STS 3 s Any settable byte can be set to a value in the range 00 FF hex gt To edit section overhead bytes 1 Select the TOH SOH tab 2 Click on the Advanced button at bottom of display under the S1 byte to open the Configure Overhead window Configure Overhead _ xl m Section Overhead Bytes STS3 Number 1 3 Select the Nth STS3 s worth of Overhead you wish to edit in the STS3 Number field 4 To edit a byte position your controller cursor on the byte of interest click and then enter a n
168. n page 170 for the tester and To set up a DCOM client on page 180 for remote computers Terminal Services remote GUI Terminal Services TS is a Microsoft Windows 2000 utility that allows several users to log in from remote computers and establish separate desktop instances on the TS computer to control its software Remote desktops are provided through thin terminal emulator clients Controllers shipped with N2X XM software installed have the TS software pre installed it does however have to be enabled by the user If you want to use TS on a controller that does not have the software User Guide Remote Access 5 you must install the TS software Note TS is not supported on N2X XM laptop controllers For more information see To set up the TS server on page 175 and To set up a TS client on page 183 User Guide 163 5 Remote Access Desk and Home Access You may access N2X XM from your desk or home The tester may be connected to your office LAN directly or through a lab LAN The office LAN in turn may be connected via a WAN Internet VPN to your home The Lab Your Desk Home The tester s Server 4 aka controller att OR Office WAN 5 umm 2 Lab LAN EmA LAN L Client Client You may use the different methods of remote access as follows Desk Access API Advantages Multiple concurrent users cross platform support programmable VNC Advantages Control of all tester software cr
169. n to transmit the selected alarm User Guide 147 4 Instrument Setup and Use VT TU mode Setting VT TU Pointer Bytes VT TU pointer occupy the V1V2 bytes for all mappings except TU3 which occupy H1 H2 bytes in a fixed location within the TUG3 In both cases the pointer bytes are treated as a single 16 bit word whose function is very similar to that of the AU pointer The pointer bits are numbered as follows Pointer Bits numbered 1 16 Use bits 1 4 New data flag bits 5 6 SS pointer size bits bits 7 16 10 bit pointer value Transmitter Pointer A single pointer value is transmitted in all VT TU channels of a given VT TU type that is there is one value for VT1 5 TU11 another value for VT2 TU12 and another for TU3 The following operations are available independently on each pointer type e Increment e Decrement e New Pointer Value with or without NDF When the pointer value for a given pointer type is moved It moves simultaneously in all channels of that type at once Pointer SS Bits The SS pointer size bits indicate VT TU type as follows SS Bits Size 00 VT6 TU2 10 VT2 TU12 11 VT1 5 TU11 The SS bits for TU3 are not used and are transmitted as 10 148 User Guide Instrument Setup and Use VT TU mode 4 Pointer Range The VT TU pointer range for each supported channel type is e VT1 5 TU11 0 103 e VT2 TUI2 0 139 e TU3 0 764 gt To adjust VT TU pointer values 1 Ensure you h
170. nd repair of this instrument Failure to comply with these precautions or with specific warnings elsewhere in the manual violates safety standards of design manufacture and intended use of the instrument Agilent Technologies assumes no liability for the customer s failure to comply with these requirements No operator serviceable parts inside Refer servicing qualified personnel To prevent electrical shock do not remove covers To prevent possible electric shock hazard disconnect power cord before removing covers Power disconnect device is the appliance coupler mains input cord Do not position the instrument such that access to the disconnect device is impaired When installing into a rack or system access may be impaired and must be considered as part of the installation in the form of an easily accessible rack isolation switch or similar Unused slots must be filled with blanking covers to ensure correct operation and cooling Warranty void if blanking covers are not fitted Do not stack more than 8 free standing chassis The Chassis is a Safety Class 1 Product provided with a protective earthing ground incorporated in the power cord The mains plug shall only be inserted in a socket outlet provided with a protective earth contact Any interruption of the protective conductor inside or outside of the instrument is likely to make the instrument dangerous Intentional interruption is prohibited 19 1 20
171. nect an external trigger device e g logic analyzer oscilloscope Plug each chassis into a power source For more information refer to What are the power requirements of your configuration 41 1 42 Installation Installing and removing modules CAUTION Take anti static precautions The components on the modules are sensitive to static electricity To minimize electrostatic damage please take the necessary anti static precautions for example wear a wrist strap Do not operate chassis with empty slots Fill any empty slots in the N2X XM N5540 41 42A chassis with blanking plates E7900 00001 to ensure correct operation of the chassis When inserting the blanking plate always use the runners on the chassis otherwise you may damage the rear panel connectors WARNIN Modules may become hot during use DO NOT touch any of the components on a module as you remove it from the chassis ESD Precautions The N2X XM contains components sensitive to electrostatic discharge The smallest static voltage most people can feel is about 3500 volts It takes less than one tenth of that about 300 volts to destroy or severely damage static sensitive circuits Often static damage does not immediately cause a malfunction but significantly reduces the component s life Adhering to the following precautions will reduce the risk of static discharge damage e Keep the module in its conductive storage bag and box when not i
172. nel Double click Users and Passwords On some Windows 2000 systems you must double click Administrative Tools then Computer Management and select the Local Users and Groups from the left hand panel 2 Select the Advanced tab then click the Advanced button 3 In the left hand pane of the Local Users and Groups dialog right click the Users folder and select New User In the New User dialog use these account values User name lt abbreviated login name gt Full name lt more descriptive name for account gt Description lt blank gt Password amp Confirm password lt Password gt Disable User must change password at next logon Enable Password never expires User Guide System Administration 7 5 Click the Create button then click the Close button Back on the Local Users and Groups dialog you should see the new user in the right hand pane Double click this new user entry 6 In the Properties dialog select the Member Of tab then click the Add button 7 Inthe Select Groups dialog select Administrators from the list at top then click the Add button 8 Click OK twice to dismiss the two most recent dialogs Then close the Local Users and Groups and Users and Passwords dialogs Log off then log in as the new user to verify User Guide 197 7 System Administration To set a PC s host name and domain The tester s controller PC has a factory preset host computer name but you may change it to something that
173. nimize electrostatic damage please take the necessary anti static precautions for example wear a wrist strap WARNIN Power cables WARNING Use the supplied power cords They manage the required loads provide an earth ground and protect you from electric shock For additional or replacement power cords contact us see To contact us on page 17 Only trained personnel who are aware of the hazards should install and disassemble the tester Before disassembling the tester turn off all power and unplug all power cords Do not block access to a power cord or switch in case you need to disconnect power in an emergency 40 User Guide 1 Installation Connecting chassis together chassis 100 rear view aw E kar to switch Dwm Ae o o LINK ACT LINK ACT fm w i MD MOX N T SERIAL L J i S Chassis to chassis H 7 cable nA ad 2 3 7900 64207 BNC cable E7901 64207 chassis 200 rear view Lent T to switch 4 O ine ACT LINK ACT IN Mol MOX L DAISY CHAIN TIMING SYNC Steps User Guide OUT SERIAL 1 Daisy chain the clock and event lines of the chassis by connecting the OUT port on the first chassis to the IN port on the next chassis The first chassis in this daisy chain becomes chassis number 100 the second becomes chassis number 200 and so on Optional Con
174. nstalled in the N2X XM chassis Save the box for future storage e Before handling the module select a work area where potential static sources have been minimized Avoid working in carpeted areas and using nonconductive chairs Keep body movement to a minimum e Agilent Technologies recommends that you use a static controlled workstation User Guide Installation 1 Handle the module by its front panel Avoid touching any components or connectors When about to install the module keep one hand in contact with the protective bag and pick up the module with the other Before installing the module touch the metal surface of the N2X XM chassis with your free hand to ensure that you the module and the chassis have the same static potential This also applies whenever you connect disconnect cables on the front panel Module Handling Requirements Care must be taken when fitting and removing modules into a chassis to avoid trapping cables between the module and the chassis When fitting or removing a module into a chassis which is operating and contains any other modules the following guidelines must be adhered to User Guide Disconnect and move aside all cabling from the module to be removed Ensure that the retaining screws have been released onto their retaining springs Make sure that when removing a module blanking plate that a replacement module or blanking plate is available nearby Ensure that the time between first
175. o the test modules The IIS software is factory installed on system controllers but is not distributed on the tester CD and must be installed on your own PCs before you can do a Full Installation of the tester software The software might already be installed on your PC In this case you simply enable it follow the procedures below to do this If the software is not on your PC you need the Windows CD to install it Windows 2000 Install IIS from the Control Panel 1 Choose Start Settings Control Panel and double click the Add Remove Programs icon Select the Add Remove Windows Components button on the left hand side to open the Windows Components Wizard dialog Select Internet Information Services IIS from the list Click the Details button In the HS dialog select File Transfer Protocol FTP Server and click OK The Common Files and IIS Snap In components will be auto selected Click the Next button to complete the installation To uninstall a previous version From the Settings menu select Control Panel Double click the Add Remove Programs icon Select OmniberXM Click Remove or Add Remove depends on your version of Windows Repeat steps 3 and 4 for other Agilent N2X products 191 6 Software Install Upgrade To install on remote computers You must e install Agilent N2X OmniberXM software e enter product licenses simply double click the Add License desktop icon and enter your licenses S
176. obtain your own TS CAL licenses through Microsoft You could easily enquire whether your corporate IT group has or can more easily obtain TS CAL licenses To install the client software You can find this software on the e controller hard disk C WINNT system32 clients tsclients msrdpcli exe e N2X XM Operating System Recovery software CD at the top level msrdpcli exe e web site www microsoft com windowsxp pro downloads rdcliental asp 1 Navigate to the required exe file listed above and double click 2 Accept the license and install the application for anyone who uses the client PC It takes less than one minute to install the files User Guide 183 5 Remote Access To configure connection options 1 From the Start menu launch the Remote Desktop Connection SS accessiiity gt S les A inistrative Tools Common Aiza Communications P ih HyperTerminal posun B Microsoft Office Tools B System Tools S Internet Connection Wizard Settings C Norton Antivirus Corporate Edition EB Calculator NetMeeting B Startup gt E Command Prompt Network and Dial up Connections Search vnc J Notepad Phone Dialer A RouterTester QA Robot y Paint Remote Desktop Connection TOOT O Windows Explorer CY WordPad 2 Inthe Computer field select the N2X XM controller to which you want to connect Note If you want to configure the display resource and performance options click the Options bu
177. on 10 If you wish to enter a trace message manually select a VT Path then the Expected Path Trace field and enter your message Note If you have configured the N2X XM Tx Rx interface to SDH with a TU 3 within an AU 4 the byte used for path trace routing is J1 which can be set to 16 or 64 byte length To change the length of the J1 byte double click in the Length field for the required channel and select from the drop down menu Compare Path Trace Message s 11 Check you have selected the ports to be included in the test see step 7 Select the Start Test button The Path Trace test runs through a compare test and displays in the Port Mismatches column the number of mismatches found for each port and also gives channel results for pass or fail for the currently selected port Expected and Measured J1 J2 values for the currently selected port are displayed The Port mask highlights in red any channels which have a mismatch between the expected and received J1 J2 byte s If you click on an errored red channel the channel list changes to highlight that channel allowing you to quickly view results Connectivity Port Mask Color Scheme If there have been no connectivity tests performed the Result column reads Not Tested the Port mask is light grey in color This changes to a darker grey when a test is performed Any errored channels are shown red use the mask zoom facility to better view channels User Guide Measurements
178. on page 166 e To change the IP address of the switch card on page 168 e To set up a VNC server on page 170 e To set up a DCOM server on page 171 e To set up the TS server on page 175 To configure the tester for network access 166 Log into the tester using the Administrator account which has the required administrator privileges You must set up the tester with the following IP address If your lab is set up to use e DHCP Set up the tester to use its DHCP client software to obtain an IP address dynamically from your LAN s DHCP server Then determine the IP address that was allocated e hardcoded IP addresses Manually enter a unique IP address The procedure for setting up IP addresses varies depending on whether your controller has Windows 2000 If you need help doing this see To set a PC s IP addresses on page 199 To see which addresses are allocated by DHCP servers see To list a PC s IP addresses on page 202 Host name and domain The tester s controller PC has a factory preset host computer name but you may change it to something that e is more appropriate for your installation e is unique e conforms to your company or lab s conventions for host names User Guide Remote Access 5 Again the procedure for setting up host names varies depending on whether your controller has Windows 2000 If you need help doing this see To set a PC s host name and domain on page
179. on within the chassis On completion of this process the module is available to be added to any pre existing or new test session as far as the rules regarding Clock Event lines allow User Guide Installation 1 Note that a re numbering operation requires that there are no test sessions running on the host controller Removing modules from chassis Steps 1 Unscrew the screwlocks Pull the extractor levers outwards and pull them gently towards you Remove the module holding it only by the front panel and metal case Be careful not to touch any of the components on the module Place the module on a hard flat surface NEVER stack one module on top of another 2 Replace the removed module with a blanking plate see instructions above for installing a module NEVER operate a chassis with an empty slot ALWAYS replace the blanking plate to ensure correct cooling of the chassis When inserting the blanking plate always use the runners on the chassis otherwise you may damage the rear panel connectors Note that removal of a module from a chassis does not compromise the Clock Event chain since this is handled entirely within the chassis User Guide 45 1 46 Installation Hot Swappable To avoid problems modules must only be removed from a chassis when that module is not allocated to a test session Removal of a module from a currently active test session will result in a script client abort failure which will terminate the
180. onnect Network Drive Network Identification Create Shortcut Rename Network and Dial up Connections Properties ay 2 Select Advanced Settings Adapters and Bindings Provider Order Connections are listed in the order in which they are accessed by DNS and other network services Connections atk To Tester Hub User Guide 2 Remote Access connections Make the LAN port the first connection Select the Ethernet port that connects the LAN which in turn connects remote clients lee Bindings for To LAN Then click the up arrow button to move it to lt lt iE g File and Printer Sharing for Microsoft Networks Internet Protocol TCP IP Client for Microsoft Networks al Y Internet Protocol TCP IP the top of the binding order list Click OK to save the change EE 201 7 System Administration To list a PC s IP addresses The fastest way to list the IP addresses currently being used by a PC s LAN ports is through a DOS command First launch a DOS shell 1 Select Start gt Programs gt Accessories gt Command Prompt 2 Enter the command ipconfig Ma Command Prompt C gt ipconf ig Windows NT IP Conf igurati ances ONS AYERS TOD The port connecting Ethernet adapter PCNTN4M1 yj your company LAN IP MES sa aea fai na E Subnet Mask Dotan Tey Gat oNay oS RAR mags The port conn
181. oss platform support Limitation One user at a time performance DCOM Advantage Multiple concurrent users Limitations Control of N2X XM GUI only PCs running Windows 2000 only Home Access API Advantages Multiple concurrent users cross platform support VNC Limitations One user at a time works only if the WAN can access the tester connecting the lab LAN performance DCOM You set up a DCOM session from the desktop PC then use VNC from home to VNC control the desktop PC Advantages Works even if the WAN cannot access the Lab Router faster than using only VNC allows multiple concurrent users each uses their own desktop PC 164 User Guide Remote Access 5 Troubleshooting Remote Access Before setting up remote access beware of these potential problems Potential Problem Duplicate 10 x x x IP addresses ae 10 x x x LAN WAN 10 x x x es 10 x x x ann San Client won lowe 2 LAN IWAN amp E gt o MUMU DHCP client uses incorrect LAN IP address LAN 127 0 0 1 WAN G R wu o e AU UNE Troubleshooting The tester uses IP addresses in the subnet 10 x x x 8 to control its test interfaces A DHCP server on the tester PC dynamically assigns each N2X XM test port an IP address from this subnet If you are also using 10 x x x addresses in your test lab
182. ot exceed the stated maximum input power damage level when applying input signals User Guide Installation 1 To attenuate single mode optical signals for a multimode optical interface As indicated in the previous table some single mode optical test ports provide connectivity with multimode interfaces Test Port DUT single mode transceiver multimode transceiver Note Tx Optical Out Rx Optical In on module front panel Steps 1 Use an attenuator to reduce the test port s transmitter output power to a level compatible with the Device under tests DUT s receiver 2 Use a single mode fibre yellow to connect to the DUT s receiver Use a multimode fibre may be orange grey green or white to connect to the test port s receiver Notes You can order attenuators from manufacturers like AMP The required attenuation depends on the DUT s receiver and the losses introduced by the optical fibers and connectors For instance assume the e single mode Tx output S to T dBm e g 15 to 8 dBm e Rx input sensitivity M to N dBm e g 26 to 12 dBm e fiber and connector loss e g 1 dB You would require attenuation in this range e maximum S M loss dB e g 15 26 1 10 dB e minimum T N dB e g 8 12 4 dB User Guide 61 1 Installation In this example a 6 dB attenuator would work well as it would reduce the output signal level to the range 21 to 14 dBm well within t
183. other due to capture being started synchronously across all ports so cause and effect can be deduced gt To Configure Sequence Capture 1 Select the Byte Capture tab 2 Select the Ports and Byte Groups button r Byte G Pot ByteGrou ap 11 1 KLK2 Selected Port s 101 2 KLK2 M y 1021 K1K2 K2 2 6501 1 K1K2 Set on All Ports 6501 2 K1 K2 K2 2 SS 6502 1 K1K2 r Pot Order 6502 2 K1K2 2 Move Up Move Down 3 Select the Byte Group K1 K2 or K1 K2 K2 2 Click on the Set on All Ports button if you wish to capture the same set of bytes for all the selected ports User Guide 111 3 Getting Started 4 Clock on OK when finished selecting the required Port and Byte Groups gt To Start or Stop Byte Capture 5 Capture is initiated by selecting the Gating Start button and stopped by selecting the Gating Stop button 112 User Guide User Guide Getting Started 3 Edit Transmitter Path Overhead Bytes You can set up the path overhead bytes for an individual channel or a number of selected channels A unique J1 message can also be defined for each of the defined channels Refer to the Telecoms Concepts chapter at the rear of this manual for descriptions of the Path Overhead bytes m Selected Path _ Path Overhead Bytes i c2 Oth Equipped Non Specific Payload x at 0000 l 000 No Defect Non Enhanced iG b1 b4 b5 b7 Binary
184. ovince of regional standards it provides an example based on a value of less than 100 microseconds less than 0 2 of the maximum acceptable 314 User Guide User Guide Telecom Concepts 11 protection switching time In the case of pointer and pattern acquisition the required times are 125 to 375 microseconds for STS AU pointers and 500 to 1500 microseconds for VT TU pointers System Protection Switching Time When measuring a system s protection switching time the total systematic error associated with the instrument s service disruption measurement can be restricted to between 0 3 to 4 05 of the maximum acceptable switching time Consequently it can be relied on to accurately evaluate this important system specification 315 11 Telecom Concepts Protection Switching Time Test Methods Many SONET SDH linear and ring networks have built in fault restoration known as Automatic Protection Switching APS However the basic principles behind the instrument s Service Disruption measurement and its application in verifying a transmission system s protection switching time remain valid Following a failure full service is not restored until all the Bridge and Switch operations are completed A key goal for Network Equipment Manufacturers NEMs is to keep service disruption as short as possible as their customers Network Operators will demand that all systems deployed in the network meet or exceed the specificat
185. path and up to 8 overhead bytes for overwriting Select OK when finished 4 Set the Mode field to Sequence 5 Click on the Sequence New button and in the New Sequence dialog box enter the number of states you require for the new sequence range 1 to 256 Click on OK when finished For each State in turn enter the number of frames and the byte values by clicking in the appropriate cell Alternatively a sequence can be built one state at a time by using the Insert button The inserted state will have the same values as its predecessor The Remove button can be used to remove the selected state from a sequence Click on the Start button to start a sequence If you wish the sequence to repeat continually click the Repeat box To stop a sequence at any time click the Stop button 119 3 Getting Started 120 Clear State Insert State Remove Use the Clear button to clear the current sequence Use the State Insert button to add a new State The State added is a copy of the one currently selected before the Insert Use the State Remove button to remove the currently selected state the one with the blue arrow Encoding APS Bytes sequence and static overwrite The values of the any SOH 2 byte pair can be set by APS field from the GUI instead of using a hex value To set byte values by APS field Select the OH Overwrite tab Set the Type field to Transport SONET or Section SDH Select the bytes you wish to en
186. pdf N2X XM Installation Guide e api_programming guide pdf N2X XM API Programming Guide 186 User Guide CAUTION Agilent N2X XM User Guide 6 Software Install Upgrade System Requirements page 188 Software Installed page 189 To install upgrade software page 190 To install and enable IIS FTP page 191 To uninstall a previous version page 191 To install on remote computers page 192 Caution Support for modified or non Agilent hardware and software Disregard any instructions in the PC User s Guide directing you to check or install components inside your PC We cannot guarantee that the N2X XM is compatible with other hardware peripherals operating systems or software applications not purchased through Agilent Consequently we do not provide warranty for or support problems associated with modified or non Agilent systems or systems with altered operating system configuration or initialization files Agilent Technologies 187 6 Software Install Upgrade Software Installation Upgrades The tester software is factory installed on each controller PC shipped You may however be e upgrading software on the controller e installing or upgrading software on a computer that will remotely access the controller through DCOM as described in To set up a DCOM client on page 182 Please review the System Requirements before starting the installation System Requirements To install and run the software
187. pe gt To select Terminal or Thru mode 1 Select the Physical tab 2 Click on the Mode required Terminal or Thru Mode Confirm in the dialog window that you wish to change mode for the selected port Note that it takes approximately 5 seconds for a Mode change to be completed Terminal Mode Multi channel mixed payload generation with pattern error and alarm generation Thru Mode Two types of Thru Mode are available Transparent and Intrusive Transparent Thru Mode In transparent thru mode the signal on the receive port is routed unchanged to the transmit port The N2X XM operates as normal monitoring errors and alarms in the received signal No data is altered and no BIP s re calculated Intrusive Thru Mode Re transmits received payload with ability to add errors or alarms to any or all channels as they pass The following N2X XM Transmitter functionality is available in Thru Mode 86 User Guide Getting Started 3 You can add the same type of errors and alarms in Thru mode as you can for Terminal mode with the exception of Pattern Bit errors They are e B1 B2 B3 MS REI REI L HP REI REI P errors e LOS LOF LOP AIS L MS AIS RDI L MS RDI AIS P AU AIS RDI P HP RDI UNEQ P HP UNEQ PDI P HP PDI alarms Refer to Chapter 4 Instrument Setup and Use VT TU mode for detailed information on VT TU operation Setting up the Transmit Clock source You can reference the transmitters timing to
188. pendently For example STS1 AU3 channels can be set independently of the rate for STS3 AU4 channels All selected channels with the same mapping type will be errored at the same rate 2 Click on a Payload Rate cell that you wish to edit and use the drop down menu to enter a new value or use the keyboard to enter your own value The range for the selected mapping is shown at the bottom of the list User Guide User Guide Getting Started 3 Burst Mode Generation Two types of burst generation are provided for alarms and errors they are e Timed error alarm burst generation and e Pulse mode alarm burst generation r Timed Burst Parameters Mode g Mode Manua F Time On secs 6250 Timed Burst On Alarm On Time Off secs 100 Cycles 500 Timed error burst generation 1 Select the E A Inject tab 2 Select the Type of errors you wish to generate 3 Set the Mode field to Timed Burst With Timed Burst you can set a burst of errors or alarms to be e ON for X seconds or OFF for Y seconds where X and Y are between 1 and 10 000 X 1 to 10 000 Y 0 to 10 000 Z 1 to 10 000 e Repeat the ON OFF cycle Z times where Z is 0 to 10 000 Note When Y is 0 there is no OFF time just a one shot burst of X seconds The Timed Burst mode is applied to the currently selected error or alarm types 4 Use the Timed Burst Parameters edit fields to enter On Off and Cycle values for a timed burst 5 Click on the Timed Burst
189. perating temperature range The N5540A portable chassis supports a 10 Mhz reference input with no support for an external BITS 2M reference N5540A Other Chassis Connectors Power Male AC power receptacle MDI RJ 45 100 Mb s Ethernet to PC Controller MDI X RJ 45 100 Mb s Ethernet to next chassis Daisy chain Out Male D shell Event clock connections to next chassis 239 9 240 Specifications Daisy chain In Male D shell Event clock connections from previous chassis External Trigger In Female BNC Trigger input from external device External Trigger Out Female BNC Trigger output to external device 1 pps In Female BNC 1 pulse per second input from GPS module Serial RJ 45 Serial input from GPS module Option 010 Multi channel VT TU mode Adds multi channel VT Low Order Path BER VT Low Order Path APS switching times and J2 path connectivity testing for verification of multi service provisioning platforms Full bandwidth simultaneous measurement of up to 1344 VT1 5s or 1008 TU 12s is supported within each OC 48 In addition framed unframed DS 3 DS 1 E1 mapped payloads are supported as well as unframed E3 mapped payloads Option 010 enable Normally option 010 is factory enabled when you place an order for option 010 however if need to switch on Option 010 in a module use the following procedure 1 Start the N2X XM application on the system controller 2 Create a session containing the N2X XM Module
190. plex section section Regenerator Regenerator section Regenerator cti S n ass A E SDH SDH D regenerator regenerator l Tiotary Tributary a S i signals o P igna y SDH digital VC assembly aa isassembly ee Path For more information see e Regenerator Section Overhead RSOH on page 293 e Multiplex Section Overhead MSOH on page 294 e Higher Order Path Overhead HO POH on page 301 e Lower Order VC n Path Overhead LO POH for VC 11 VC 12 or VC 2 on page 306 292 User Guide 11 Telecoms Concepts Regenerator Section Overhead RSOH The regenerator section overhead RSOH bytes support the transmission of an SDH signal across the regenerator section span of a network Byte Label Description Al A2 JO ZO Bl El Fl D1 to D3 Framing Regenerator Section Trace RS BIP Orderwire User Channel Data Comm Channel Provides a frame alignment pattern A1 F6 Hex A2 28 Hex The frame alignment word of an STM n frame is 3 x n Al bytes followed by 3 x n A2 bytes Regenerator section trace 16 byte frame including CRC supports continuity testing between the transmitting and receiving device on each regenerator section span Spare Reserved for future international standardization Provides regenerator section error monitoring The regenerator section BIP 8 provides
191. procedure practice or the like that if not correctly per formed or adhered to could result in damage to the product or loss of important data Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met WARNING A WARNING notice denotes a hazard It calls attention to an operating procedure practice or the like that if not correctly performed or adhered to could result in personal injury or death Do not proceed beyond a WARNING notice until the indicated conditions are fully understood and met User Guide User Guide AGILENT LICENSE TERMS The following License Terms govern your use of the Licensed Materials unless you have a separate written agreement with Agilent in which case that written agreement will control and take precedence License Grant Agilent grants you a non exclusive license to use one copy of the Licensed Materials With respect to the software portion of the Licensed Materials use means to install store display execute and use the software on the computer or device or on the class or series of equipment for which you have paid the corresponding license fee If no fee is required you may use the software on one computer or device If the software is licensed for concurrent or network use you may not allow more than the maximum number of authorized users to access and use the software concurrently License Restrictions You may make copies or ada
192. ptations of the Licensed Materials only for archival purposes or only when copying or adaptation is an essential step in the authorized use of the Licensed Materials You must reproduce all copyright notices in the original Licensed Materials on all permitted copies or adaptations Except as provided here you may not copy modify or translate the Licensed Materials or disable any of its features You may not copy the Licensed Materials onto any public or distributed network or service bureau In addition you may not lease rent or sublicense the Licensed Materials without Agilent s prior written consent Upgrades This license does not entitle you to receive upgrades updates or technical support Such services may be purchased separately If the Licensed Materials include an upgrade to previously licensed material your license in that material automatically terminates and you should destroy the previous content and any copies or adaptations Ownership The Licensed Materials are owned and copyrighted by Agilent or its third party suppliers Your license confers no title to or ownership in the Licensed Materials and is not a sale of any rights in the Licensed Materials Agilent s third party suppliers may protect their rights in the event of any violation of these License Terms No Disassembly You may not disassemble or decompile the Licensed Materials unless you obtain Agilent s prior written consent In some jurisdictions Agilent s consen
193. r from the Windows Start menu select Programs gt Agilent N2X gt Launchpad gt OmniberXm lt Version gt The Test Session dialog is displayed User Guide 75 3 Getting Started To exit and log out Exit From the application File menu select Exit Indicate whether Cre ma you want to save your current test configuration If you had ee detached the test session from your GUI indicate whether to Si leave the test session running in the background Note You can close the GUI without ending your test session Log Out of Windows a a v Programs gt Documents From the Start menu select Shut Down a D ERK amp amp LY Ge Dp F Confirm that you want to end your Windows session Ends your session and shuts down Windows so that you can safely turn off power Before you turn off the controller always log off Windows Wait for the message indicating that it s safe to power down There are two ways to power down e select Shut Down from the Start menu e click Shut Down on the Windows Security dialog 76 User Guide Getting Started 3 To get online help Help Menu The N2X XM Multi Services Transport Application help includes EJ Introduction Describes N2X XM and its help Provides 1 i Acrobat PDF versions of the paper guides e Using N2X XM Describes how to display and use the application s dialogs with details about what to enter for each
194. r Guide User Guide Telecoms Concepts 11 Synchronization Status Messages S1 bits 5 to 8 S1 Bits 5 to Quality level SONET synchronization quality level 8 description 0001 1 Stratum 1 traceable 0000 2 Synchronized traceable 0111 3 Stratum 2 traceable 1010 4 Stratum 3 traceable 1100 5 SONET minimum clock traceable n a 6 Stratum 4 traceable 1111 7 Do not use for synchronization 0111 User assignable Reserved for network synchronization use 281 11 Telecoms Concepts STS Path Overhead STS POH The STS Path overhead STS POH support the transmission of SONET signals across the path of a network Byte Label Description J1 Path Trace The first byte in the STS SPE Its location is indicated by the pointer H1H2 Provides an STS path trail trace identifier 64 byte free format string or 16 frame including CRC7 Supports end to end monitoring of an STS path B3 Path Code Provides STS path error monitoring The BIP 8 is Violation calculated over all bits of the previous STS SPE The CV P computed value is placed in the B3 byte before scrambling C2 Signal STS path signal label indicates the content of the STS Label SPE including the status of the mapped payloads For more information see C2 Byte Mapping on page 284 G1 Path Status STS path status contains status and performance monitoring information from the receiving path terminating equipment to the originating equipment Allows status
195. r chosen log file at the end of the measurement User Guide User Guide Getting Started 3 Setting a Measurement Gating Period Measurement Gating System Measurements are made on a per port basis but controlled on a per session basis That is for every port in a session individual measurements are gathered and maintained However every port allocated to a session will make those measurements simultaneously Measurement Period The measurement period gating duration is the block of time over which a measurement is made There are two methods for setting this time Single Measurement Mode and Continuous Measurement Mode Single Measurement Mode Once Allows you to set the time over which a measurement is made Once a gating period is started it will automatically terminate when the time you defined has elapsed Continuous Measurement Mode In this mode a gating period is controlled manually via the Gating Start and Stop buttons To set up and control a gating period Stop Gating amp Continuous 0 00 00 18 lt E 1 On the N2X XM ToolBar select the Gating Setup button 2 Select Continuous or Once as required If you select Once also set the Test Duration 3 To start a measurement select the Start button to stop select Stop 137 3 Getting Started Viewing Service Disruption Time Definition Service Disruption is the time from the first error in a burst to the last error The last erro
196. r is considered to have happened after an error free Guard Time has elapsed For a more detailed description of Service Disruption and the testing methods refer to the Telecoms Chapter in this guide Service Disruption with PRBS or User Word payloads When a PRBS payload is used the service disruption time can be measured in all selected channels simultaneously Service disruption measurements are also available with 16 bit word payloads but it is not advisable to use an all ones pattern because most network equipment will send all ones when a switchover is in progress and this will emulate a good payload Result Updates Results are available on a per second basis A result is reported in the 1 second interval during which the service disruption ends The N2X XM display gives results for each channel of Last Time and Max Time Last Time The duration of the last error burst detected in each 1 second interval during the test Count Displays the number of disruptions measured since the start of gating Max Time The duration of the longest error burst detected in the current measurement gating period gt To view service disruption time 1 Select the SRV DIS tab 2 Refer to APS Measurements on page 211 for detailed instructions on how to perform a measurement 138 User Guide User Guide Getting Started 3 To close a session The N2X XM allows you to close a session or leave the session active Before you exit t
197. required 4 Set the Signal Rate as required To set Line Rate Offset 5 You can offset the Transmitter Line Rate by plus or minus 100 ppm The resolution is ppm Click on the Edit button then enter the value required and click on OK To set transmitter receiver for VT TU operation 6 On the transmitter set the Mode Type to Terminal and VT TU Mode to On 7 On the receiver set VT TU Mode to On Port Laser Control 8 You can switch off or on the laser for the selected Port by clicking on the Laser button or the Laser On icon on the Toolbar To set Clock Source 9 Set the Clock Source to Internal Global or Recovered as required To set up VT TU mappings within individual channels 1 Click on the Channels setup tab 2 Position the display cursor on the desired channel then click the right mouse key and select from the choices given in the menu The choices offered are ones that are valid for the selected channel When you position the cursor over a channel a ToolTip box appears giving interface settings for the selected channel For SDH AU3 and AU4 are selectable AU3 You can select a TU 11 TU 12 or Direct Mapping 143 4 144 Instrument Setup and Use VT TU mode AU 4 you can select a TU 11 TU 12 or TU 3 For SONET VT1 5 and VT2 are selectable You can also set up VT TU channels using the Advanced Channel Configuration dialog select the Advanced button in the Channels dialog window and use the VT TU Preview Te
198. rinter server3 HPLASER_8 LAS Inside the test lab 4 Select the a Color laser jet printer a Color desk jet Plotter On Jane s desk Beside the main entrance User Guide 205 7 System Administration To recover from system problems WARNIN All data will be erased when this process begins Back up any data before beginning recovery If the Windows 2000 operating system or tester software becomes corrupted you can recover it using the N2X XM Recovery CD and Application CD This will restore the N2X XM system controller to the Agilent factory default state You will have to repeat any configuration changes you have made to the controller such as IP address changes To use the Operating System recovery disk e Make sure the controller can boot from the CD ROM drive To do this restart the controller and interrupt the boot process to enter setup or boot devices In the boot order settings make sure the CD ROM drive is listed before the hard disk drive If it is not change the order and exit setup saving changes If the order is correct exit setup discarding changes e Insert the CD ROM into the drive e Restart the controller e Follow the instructions on the screen To install N2X XM Application e Insert the Agilent N2X OmniberXM application CD part number J7241 90018 into your controller If the application does not auto run select the drive containing the application CD and s
199. rror type at a time can be injected SONET Transport SDH Section Errors SONET errors SDH errors CV S B1 Bl CV L B2 B2 REI L MS REI SONET Transport SDH Section Alarms SONET SDH Continuous Timed Burst Pulse Alarm LOS Physical yes no no SEF OOF see Note below yes yes LOF yes yes yes AIS L MS AIS yes yes yes RDI L MS RDI yes yes yes 97 3 Getting Started Note SEF OOF are one shot alarms that are transmitted using the Transmit button All other alarms are transmitted continuously until turned off Error rates e Errors can be added singly on demand via the Single Error Add button or at user defined rates e Error rates Errors can be added at a rate of w xyE z where w xy is 1 00 to 9 99 and z is 3 to 7 For example 1E 3 will give a result of 1 000E 3 on the Receiver Error Distribution For B1 and B2 errors the bit selected for error is rotated for example for B1 a single byte the first error is added to bit 1 and the second to bit 2 and so on Refer to the Specifications available on the CD ROM supplied with your system for a full list of errors and alarms Adding Pattern Bit Errors You can add pattern bit errors to both SONET and SDH payloads The errors can be added singly at a fixed rate or in timed burst mode Adding Path Errors Alarms 98 The following STS Path and HO Path errors are available for SONET and SDH The errors can be added to any combination of th
200. s 56 Modules 232 modules install 44 remove from chassis 45 Monitor JO J1 bytes 129 Multiplexer section overhead MSOH Concepts 294 N N2 lower order tandem connection byte SDH Concepts 306 N5540A Portable Chassis 2 Slot 239 N5541A 4 slot chassis 239 N5542A 4 slot chassis 237 Noise Declaration 235 O Operator Maintenance 244 Optical Adapters cleaning 246 Optical Connector Safety Information 121 Optical Connectors cleaning 246 Optical fibre cables 59 Optical Power Indicator 121 optical signals attenuate 61 Option 010 enable 240 Orderwire byte E1 SDH Concepts 293 SONET Concepts 274 Orderwire byte E2 SDH Concepts 295 SONET Concepts 275 Overhead Byte Group Capture 110 Overhead Byte Overwrite 115 User Guide Overhead Bytes Receiver 128 VT LO Path 150 Overhead Overwrite delay mode 117 Overview OmniBER XM 24 Overview Tool Tip Window 126 overwrite mode sequence 117 static 117 P Path Alarms 99 Path Errors Add VT TU errors 146 Path Errors Alarms Adding 98 Path overhead STS Concepts 282 Pattern Bit Errors 98 Payload Mapping Setup 144 Payload Pattern 95 Receiver set up 123 Performance Tests 241 POH Bytes Edit Transmitter 113 Pointer Activity Measurements 131 Pointer Bytes Setting VT TU bytes 148 Pointer Decrement Count 131 Pointer Increment Count 131 Pointer Measurement Inhibition 131 Pointer Range 149 Pointer Val
201. s Expected Path Traces messages User Guide Instrument Setup and Use VT TU mode 4 e you can also enter a Path Trace message manually by clicking on the VT Path Expected Path Trace field for a chosen channel and then editing the message via the keyboard 4 If you chose to copy J2 Path Trace messages from the signals at the Tx or Rx ports select the Copy Now button Compare J2 s 5 Click on the Start Test button The expected J2 Path Trace messages are compared with the measured J2 Path Trace messages and the results given as the number of VT Mismatches for each Port and also a Pass or fail for each Channel View the number of Mismatches for each Port and also the Pass or Fail result for each Channel The Port mask highlights in red any channels which have a J2 mismatch between the expected and measured J2 s If you click on an errored red VT TU channel the channel is highlighted in the VT Path Results display User Guide 157 4 Instrument Setup and Use VT TU mode 158 User Guide Agilent N2X XM User Guide 5 Remote Access Types of Remote Access page 161 Desk and Home Access page 164 Troubleshooting Remote Access page 165 Step 1 Configure the Tester page 166 To configure the tester for network access page 166 To change the IP address of the hub card page 168 To set up a VNC server page 170 To set up a DCOM server page 171 To set up a Terminal Services TS server page 173 Step 2 Configure the Remo
202. s indicates that part of the equipment may be hot Please refer to accompanying documentation for specific information Indicates the field wiring terminal that must be connected to earth ground before operating the equipment protects against electrical shock in case of fault Frame or chassis ground terminal typically connects to the equipment s metal frame Alternating current AC This symbol indicates the position of the operating switch for On mode This symbol indicates the position of the operating switch for Off mode Indicates hazardous voltages This symbol indicates that a device or part of a device may be susceptible to electrostatic discharges ESD which can result in damage to the product Observe ESD precautions given on the product or its user documentation when handling equipment bearing this mark 21 1 22 Installation CE ISM 1 A ICES NMB 001 SP The CE mark shows that the product complies with all relevant European Legal Directives The C Tick mark is a registered trademark of the Australian Communications Authority This signifies compliance with the Australian EMC Framework Regulations under the terms of the Radio communications Act of 1992 This is a symbol of an Industrial Scientific and Medical Group 1 Class A product This ISM device complies with Canadian ICES 001 Cet appareil ISM est conforme a la norme NMB 001 du Canada The CSA mark is a registered
203. s you don t need to wait until the online session is finished before setting up a new configuration You can then save the offline session to file and restore it later into a new future session gt To configure a session offline 1 Double click on the N2X Launchpad icon on your Controller display to start an N2X XM session When the Test Session dialog window opens set the Session Mode to Offline Also enter a Label for your session 3 Set the Type of test session to Create a new session 4 Select OK 5 In the Port Selection dialog window select the ports you want to configure Select OK Set up the Transmitter Receiver and Results interface settings as required When you are finished setting up the N2X XM select File then Exit from the N2X XM Toolbar In the Exit dialog window select Close Session and then click on the Save then exit button In the Save As dialog enter a file name for your saved configuration Also decide whether you wish to save a Complete or Partial Session If you choose a Partial session you can then select which setting you wish to save 10 Select the Save button The Session will close down and your configuration will be saved with the file name you entered in step 9 gt Torestore a saved session 1 Double click on the N2X Launchpad icon on your Controller display to start an N2X XM session In the Test Session dialog select Restore a saved session then click on Brow
204. se From the Open dialog select the file required then Open Click on OK to restore the saved file 81 3 Getting Started Example of N2X XM setup To start a session and select modules and test ports e 1 Double click on the N2X XM Launchpad icon N2x Launchpad Local or remote controller PC 2 Type of test session rine T Session estore a saved session Label BER test Browse 3 Mode Online Create anew session E T Offline P Connect to an Existing Session i 1 No existing sessions 5 OK Cancel Help gt To Start a session 1 Launch N2X XM session by double clicking on the N2X Launchpad icon on the Controller display 2 Choose the Controller you are connecting to m 66 Determine whether you wish to create a new test session restore a saved session or connect to an existing session 82 User Guide Getting Started 3 4 Set the Session Mode to Online Select Offline if you wish to configure a session offline see Configure a session offline page 81 When you select Offline you are not connected to the chassis or modules hardware 5 Click OK to display the Port Selection dialog ax Select Modules to use Select Ports to use a M6501 106 1550nm Chassis 65 6501 1 6501 10G 1550nm 1 a M6502 106 1550nm 6502 10G 1550nm 1 Mieso2 1 6503 10G 1550nm 1 a 4 6503 106 1550nm 6504 10G 1550nm 1 6503 1 Chassis 66 a H6504 106 1550n
205. ser Guide User Guide Installation 1 To connect a laptop PC Rear panel Steps 1 2 3 10 x x x subnet used Connect the laptop s 10 100 1000 Ethernet port to a chassis or 10 100 Mb s port on the switch Refer to Connecting the system controller PC on page 49 for cable information If you connect the laptop to a single chassis you do not need to connect any other cables As needed use the Universal AC adapter to plug the laptop into a power source Optional You can access a LAN using the Intel Wireless 2100 WLAN MiniPCI card installed in the PC card slot on the left side of the laptop For details about the wireless adapter or other peripherals included with the PC it is recommended that you read the accompanying printed or online documentation or see the manufacturer Dell Intel web site The PC Ethernet port that connects the chassis hub or switch uses the IP address subnet 10 0 0 1 8 Specifically a DHCP server on the PC dynamically assigns each test port an IP address from this 10 x x x subnet range If 10 x x x addresses are also used in your test lab LAN or by a software application for example to connect a laptop to a VPN change the subnet addresses used to avoid conflicts For details see To change the IP address of the switch card on page 168 51 1 Installation Step 4 Power Up the System controller front view Steps 1 Power up the controller 2 On the controller log in as
206. sis or on the back of switches This overheats and damages the devices A gap of at least 2 50mm must be left around all vent holes Also orient all equipment correctly CAUTION Racks When you install the test equipment beware of the safety hazards Review and follow the guidelines of the rack manufacturer Check web sites such as http www agilent com comms racks Specifically e Avoid creating a top heavy rack Install equipment from the bottom of the rack up Install heavier equipment at the bottom Deploy any anti tip or anti rolling mechanisms on the rack e Have two people secure equipment to the rack N5545A Controller 35 lbs 16 kg A chassis weighs 22 lbs 10 kg Test modules weigh from 11 to 18 Ibs 5 to 9 kg 35 1 36 Installation Racks Review and follow the rack manufacturer s guidelines Check web sites such as http www agilent com comms racks The temperature inside the rack must remain below the operating temperature limits Refer to the Environmental specifications on page 114 To set up chassis on a Benchtop Steps 1 Stick 4 of the provided rubber feet to the indent marks on the bottom of each switch 24 port and chassis The switches feet are in their accessories bag The rubber feet are to minimize slippage and scraping not for air flow Ventilation occurs through the sides of the chassis and through the back of the switch If you later mount chassis in a rac
207. ssociated with this measurement method is a commercial one it requires two transmission test sets one covering the required tributary rates the other covering required line rates 322 User Guide Telecom Concepts 11 Understanding Service Disruption Test Results To interpret service disruption results you must understand the rules associated with the analysis of error burst duration The service disruption test measures the elapsed time between the first and last error in an error burst that consists of one or more errors The error burst is taken as having ended when no errors are detected for a period of greater than the Guard Time following the last error Illustrating Service Disruption Results on page 324 shows the affect these simple rules have on measurement results when different error distributions are present in the received test pattern User Guide 323 11 Telecom Concepts Illustrating Service Disruption Results Case 1 Two errort bursts measured separately Longest Burst lt Shortest amp gt 200ms Last Burst Case 2 Two error bursts measured as one lt 200 ms lt Measured Switching Time __p Key Po Error burst from Protection Switch In Cases and 2 the system under test generates two error bursts when a protection switch is made The results will be affected by the separation of these two error bursts In Case 1 a result for each error burst will b
208. t may not be required for limited disassembly or decompilation Upon request you will provide Agilent with reasonably detailed information regarding any such permitted disassembly or decompilation High Risk Activities The Licensed Materials are not specifically designed manufactured or intended for use in the planning construction maintenance or direct operation of a nuclear facility nor for use in on line control or fail safe operation of aircraft navigation control or communication systems weapon systems or direct life support systems Transfer You may transfer the license granted to you here provided that you deliver all the Licensed Materials to the transferee along with these License Terms The transferee must accept these License Terms as a condition to any transfer Your license to use the Licensed Materials will terminate upon transfer Termination Agilent may terminate your license upon notice for failure to comply with any of these License Terms Upon termination you must immediately destroy the Licensed Materials together with all copies adaptations and merged portions in any form Export Requirements The Licensed Materials may be subject to export control laws including the U S Export Administration Regulations and other export laws and regulations of other countries You may not export or re export the Licensed Materials or any copy or adaptation in violation of any applicable laws or regulations You certify tha
209. t the following conditions Temperature 20 C to 60 C Altitude Up to 15 200 meters 50 000 feet User Guide Operator Maintenance 10 e Humidity Up to 90 relative humidity to 60 C The module should also be protected from extreme temperatures that could cause interior condensation Shipment Repackaging for Shipment Original Packaging Containers and materials identical to those used in factory packaging are available from Agilent Technologies offices If the module is being returned to Agilent Technologies for servicing attach a tag indicating the type of service required return address model number and full serial number Mark the container FRAGILE to ensure careful handling In any correspondence refer to the module by its model number and full serial number Other Packaging The following general instructions should be followed when repackaging with commercially available materials e Always use a static bag and then wrap module in paper or plastic If the module is being shipped to Agilent Technologies attach a tag indicating the type of service required return address model number and full serial number e Use a strong shipping container A double walled carton made of 350 pound test material is adequate e Use a layer of shock absorbing material 70 to 100 mm 3 to 4 inches thick around all sides of the module to provide firm cushioning and prevent movement inside the container e Seal shipping con
210. t you are not on the U S Department of Commerce s Denied Persons List the U S Department of Treasury s Specially Designated Nationals list or other government list prohibiting you from receiving the Licensed Materials U S Government Restricted Rights Software and technical data rights granted to the federal government herein by these License Terms include only those rights customarily provided to end user customers Agilent provides this customary commercial license in software and technical data pursuant to FAR 12 211 Technical Data and 12 212 Computer Software and for the Department of Defense DFARS 252 227 7015 Technical Data Commercial Items and DFARS 227 7202 3 Rights in Commercial Computer Software or Computer Software Documentation User Guide In This Guide User Guide 10 11 12 This User s Guide provides information in the following chapters on how to use your XM Installation Using the Graphical User Interface GUI Getting Started Instrument Setup and Use VT TU mode Remote Access Software Install Upgrade System Administration Measurements Specifications Operator Maintenance Performance Tests Telecoms Concepts User Guide Contents User Guide 1 Installation N2X XM at a Glance 16 To Contactus 17 For support through the World Wide Web 18 Specifications 18 Safety Precautions for the Operator 19 Environmental Conditions 20 Safety Symbols 21 Statement of Complianc
211. tainer securely e Mark shipping container FRAGILE to ensure careful handling e In any correspondence refer to the module using its model number and full serial number User Guide 247 10 Operator Maintenance 248 User Guide 11 Telecoms Concepts Glossary 251 Signal Rates 267 Summary of Errors and Alarms 268 SONET Concepts 270 SDH Concepts 289 Service Disruption 312 This chapter provides useful reference material including a summary of the ITU standards explanations of telecoms terms and lists of overhead bytes signal rates and errors alarm SS Agilent 249 11 Telecoms Concepts 250 User Guide Glossary User Guide Numerics 10BASE 2 10BASE 5 10BASE FL 10BASE T 100BASE FX 100BASE SX 100BASE T 100BASE TX 1000BASE LX 1000BASE SX 1000BASE T 802 3ae 802 3z 11 10 Mb s Ethernet on 200 meter segments of thin copper standard 75 ohm coax Cheapernet or Thinlan 10 Mb s Ethernet on 500 meter segments of coaxial cable fat 75 ohm coax The original Ethernet 10 Mb s Ethernet on 2 km multimode fiber optic cables at 850 nm 10 Mb s Ethernet on 200 meter loops of unshielded twisted pair copper UTP Cat 3 100 Mb s Ethernet on 2 km multimode or 10 km single mode fiber optic cables at 1310 nm 100 Mb s Ethernet on 2 km multimode fiber optic cables at 850 nm 100 Mb s Ethernet on 200 meter loops of unshielded twisted pair copper 100
212. tatus Messages synchronization 106 Storage 246 straight through cables 41 STS path overhead POH Concepts 282 Support Technical 18 Switches 33 switches rack mount 38 setup 38 Symbols Safety 21 Sync status byte S1 SDH Concepts 294 SONET Concepts 275 System Power up 52 System Controllers 30 T Technical Support 18 10 0 0 1 hub card address changing 165 Terminal Mode 86 Thru mode 86 Timed error alarm burst 103 To close a session 139 To connect a laptop PC 51 To exit and log out 76 327 Index To get online help 77 Windows Desktop 75 To log errors alarms and statistics results to a file 135 7 To Manage Licenses 207 To power down the system 67 Z7 Interpretation 288 To rack mount a chassis 37 To set up a rack mount PC 39 To set up chassis on a Benchtop 36 To Set up individual channels 92 To set up individual channels 92 TOH SOH Transmitter 105 Tool Bar 78 Tools Menu 79 Transmitter Payload set up 95 Transmitter and Receiver Channels Setup 91 Transparent Thru Mode 86 twin BNC cable 41 Tx Eye clock 236 TX PORT 1 235 Types of Logging 134 Typical Configuration 28 Vv V5 byte SDH Concepts 306 V5 signal label SDH Concepts 306 Ventilation 35 Viewing Port and Channel Statistics 132 VT POH VT path overhead Concepts 286 VT LO PDH Path Errors Viewing 153 VT TU channels select unselect 144 VT TU Pointer Bytes 148 VT TU PDH Alarms View
213. te Computer page 178 To use the API remotely on page 179 To set up a VNC client page 180 To set up a DCOM client page 182 To access the online help remotely page 185 This chapter provides information on how to configure the N2X XM for remote operation and access It is recommended that you consult your system administrator to ensure correct configuration of the N2X XM on your network and to determine any security restrictions to networking the XM a Agilent Technologies 159 5 Remote Access Remote Access 160 The N2X XM software provides both a Windows based Graphical User Interface GUD as well as an Application Programming Interface API that allows you to automate tests for example to e run tests that would be too tedious or imprecise to do manually or repeatedly through the Graphical User Interface GUI e integrate tests with larger test suites that access other test equipment and Systems Under Test e repeat tests for subsequent product builds e regression test new versions or releases of products You might want remote access if e the tester is in a lab and you want to access it from your desk or home e you want to use a UNIX workstation to run tests e several users want to run tests at the same time e you want to run test scripts remotely The N2X XM rack mount controller comes with two 10 100 Mb s Ethernet ports e Port 1 Connects to your company LAN e Port 2 Connects to the tester switch
214. ted COM Configuration Properties dialog select sessionexec and click Properties to display the sessionexec Properties dialog Repeat Step 3 to give everyone access permission On the Security tab of the sessionexec Properties dialog set the launch permission to Use custom Click Edit and repeat Step 3 to allow everyone to launch test sessions Click OK to close the sessionexec Properties dialog and the Distributed COM Configuration Properties dialog User Guide Remote Access 5 To set up a Terminal Services TS server User Guide About TS TS is installed along with the N2X XM software If your controller does not have Terminal Services installed use the N2X XM Operating System Recovery CD supplied with your system to install all required TS software To see if you have TS installed on your controller select Start menu gt Administrative Tools You should see Terminal Services menu items Client Creator Configuration Manager Licensing If you do not have TS installed see 1 To install the TS software page 174 2 To set up the TS server page 174 3 To setup a TS client page 183 If you do have TS installed see 1 To set up the TS server page 175 2 To set up a TS client page 183 For complete documentation on TS see the Microsoft web site www microsoft com windows2000 technologies terminal System requirements A system controller requires extra resources CPU memory disk space to run as a TS Serv
215. tern 1 Click on the Pattern tab to display the Pattern dialog 2 Position the display cursor on the Receiver channel whose pattern you wish to select and right click the mouse key Choose a pattern from the choices offered in the popup menu They are e PRBS 23 shown on display as PRBS23 or P e PRBS 23 Inverted shown on display as PRBS23 INV or I e User Word user definable 16 bit user word shown on display as User or U e Live shown on display as Live or L 3 If you selected User Word type the required 16 bit word in the User Word fields at the bottom of the Receiver display 4 Multi channel selection To select a range of channels click on a channel then shift click on another channel and press the spacebar to toggle through the available choices 124 User Guide User Guide Getting Started 3 To Monitor Ports for Errors or Alarms Use the Overview window to quickly check all the chassis ports in your current session for errors or alarms Any errored ports are shown red in color Overview The chassis and port view are exactly the same except for the layout of ports The two views both show the status of all channels on all ports in the session The Overview window enables you to quickly check for errored or alarmed channels ports The current and historical error alarm events for an individual port channel is displayed via a popup window when you position your controller cursor over a port channel If you find an
216. the area of lint free cloth to be used for cleaning 244 User Guide User Guide Operator Maintenance 10 Optical Patch cord connectors Wet Dry Cleaning Remove connector dust cap Moisten a small section of a lint free cloth with IPA and place the cloth on a clean dry flat surface Hold the connector vertically and using light downward pressure inscribe several figure 8 motions on the cloth Using a dry portion of the cloth dry the ferrule immediately Failure to do this will result in a residue on the ferrule and or fibre end face Dispose of the cloth immediately after use do not use it to clean another connector A compressed air spray may be used as a final operation to remove any residual particles Replace the dust cap on the connector taking care not to touch the ferrule fibre end face Dry Cleaning alternative method This method addresses the potential to use a cassette style cleaner e g NTT ME Cletop range Clean the connector end using the cassette cleaner by advancing the tape belt exposing a fresh tape section and sliding the ferrule fibre end face along the exposed tape section with a light downward pressure The Cletop cassette has two adjacent slots thus exposing two sections of tape Hence two separate cleaning operations should be employed per connector Replace the dust cap on the connector taking care not to touch the ferrule fibre end face Inspection Either of the above methods
217. the transmitting and receiving end of a section STS or VT path by monitoring a message in the JO or J1 byte The message format can be 16 byte CRC 7 or 64 byte m TOH Decodes Linear APS C Ring APS K1 0000 No Request 0 K2 J 0 lo 000 Reserved For Future Use S1 0000 0000 STU Synchronized Traceability Unknown JO Agilent OmniBER XM J72414 Port 0102 1 64 STS POH Decodes C2 Equipped Non Specific Payload G1 0000 000 No Defect Non Enhanced fo J1 Agilent OmniBER XM J7241A Port 0102 1 001 64 gt To monitor JO and J1 overhead bytes 1 Select the OH tab from the Results display area 2 The JO Section trace message and J1 Path trace message are displayed as shown above along with the other bytes 129 3 Getting Started Viewing Measurement Results How are Results presented Measurements are performed during a measurement period Gating period set by the user see Setting a Measurement Gating Period on page 137 When a gating period has ended the final results for each measurement remain available to the user When a new gating period is started all results are cleared Results from previous gating periods are now unavailable Section and Line level results are displayed for all receiver ports in a test session Path level results are displayed for all selected channels within a specified receiver port Results Format All results are displayed as follows Count Displa
218. this document or of any information contained herein Should Agilent and the user have a separate written agreement with warranty terms covering the mate rial in this document that conflict with these terms the warranty terms in the separate agreement shall control Technology Licenses The hardware and or software described in this document are furnished under a license and may be used or copied only in accordance with the terms of such license Restricted Rights Legend If software is for use in the performance of a U S Government prime contract or sub contract Software is delivered and licensed as Commercial computer soft ware as defined in DFAR 252 227 7014 June 1995 or as a commercial item as defined in FAR 2 101 a or as Restricted computer software as defined in FAR 52 227 19 June 1987 or any equivalent agency regulation or contract clause Use duplication or disclosure of Software is subject to Agilent Technologies standard commercial license terms and non DOD Departments and Agencies of the U S Government will receive no greater than Restricted Rights as defined in FAR 52 227 19 c 1 2 June 1987 U S Gov ernment users will receive no greater than Limited Rights as defined in FAR 52 227 14 June 1987 or DFAR 252 227 7015 b 2 November 1995 as applicable in any technical data Safety Notices CAUTION A CAUTION notice denotes a hazard It calls attention to an operating
219. to use for this measurement 3 Switch ON the laser for the ports you are using Port 1 set up 4 Select the Port you are connecting as per Port 1 in the diagram User Guide User Guide gt Set up Guard Time Measurements 5 Select the Physical tab and set up the Transmitter Signal Standard and Rate Set the Mode Type to Terminal and VT Mode to On 6 Set the Receiver Interface Signal Standard and Rate as per the transmitter settings and set VT Mode to On 7 Select the Channels tab Check on the Transmitter channels display that all VT channels are set to VT1 5 they are brown in color VT2 channels are color coded purple If necessary right click on a channel to change selection For SDH operation set TUs to TU 11 8 Select the Mappings button and set the WT1 5 TU 11 Tx and Rx Mapping as required for your test Click on the Tx and Rx Mapping fields to enable the drop down menu s Click on OK when finished Port 2 set up 9 Ensure the working path of the system under test is connected to the Receiver RX PORT 1 port of the Port configured as per Port 2 in the diagram 10 In the Port display top left select the Port you are connecting as shown for Port 2 in the hook up diagram 11 Select the Physical tab and set the Transmitter to Thru Mode and the Thru Mode Type to Intrusive 12 Set the Receiver Signal Standard and Rate to those you set previously in Step 6 for Port 1 Ensure VT Mode is set to On 13 Select the
220. trademark of the Canadian Standards Association and indicates compliance to the standards laid out by them Warranty and service Please contact your nearest Agilent Technologies Sales Office for information on warranty and extended warranty options User Guide Installation 1 Statement of Compliance Electromagnetic Compatibility EMC Information This product conforms with the protection requirements of European Council Directive 89 336 EEC for Electromagnetic Compatibility EMC The conformity assessment requirements have been met using the technical Construction file route to compliance using EMC test specifications EN 55011 1991 Group 1 Class A and EN 50082 1 1992 In order to preserve the EMC performance of the product any cable which becomes worn or damaged must be replaced with the same type and specification Safety Information This instrument has been designed and tested in accordance with publication EN61010 1 1993 IEC 61010 1 1990 A1 1992 A2 1995 CSA C22 2 No 1010 1 1993 Safety Requirements for Electrical Equipment for Measurement Control and Laboratory Use and has been supplied in a safe condition The instruction documentation contains information and warnings which must be followed by the user to ensure safe operation and to maintain the instrument in a safe condition User Guide 23 1 Installation Overview N2X XM multi services transport application N2X XM consists of the following
221. trative Tools gt Terminal Services Configuration to display the Terminal Services Configuration window 2 Review the default server settings Terminal Services Configuration ioi x Action view gt l ES Application Server Tree Terminal server mode Re Delete temporary folders on exit Yes Re Use temporary folders per session Yes R Internet Connector licensing Disable Re Active Desktop Enable Bi Permission Compatibility Windows 2000 Users LI Terminal Services Configuration Connections 4M Server Settings 3 In the left hand pane select Connections In the right hand pane right click RDP Tcp then select Properties User Guide 175 5 Remote Access 176 E Terminal Services Configuration Properties 4 On the RDP Tcp dialog select the Network Adapter tab then enter the maximum number of remote clients allowed RDP Tcp Properties All network adapters configured with this protocol ha The default is 0 This is a security precaution to prevent unauthorized remote access until you have configured the server to your requirements Through the Remote Control tab you can deselect the Require user s permission check box so that you can access from home a session you initiate at the office To activate the License Server and obtain a license 1 Select Start menu gt Administrative Tools gt Terminal Services Licensing
222. ts page 70 Quick Selections page 71 This chapter provides information on how to use the Windows based graphical user interface of the N2X XM Multi Services Transport Application ee Agilent Technologies 69 2 Using the Graphical User Interface GUD The graphical user interface is Windows based and has the benefits of using components that are probably familiar to you and uses many of the Windows shortcuts The following list describes the shortcuts and quick selections available Shortcuts Shortcut Tool Tips Pop up Windows Context menu Column sort Mouse actions Description On the Toolbar move the mouse over the graphic to display a short tool tip describing the action that will take place on selecting this item On the Channels Pattern or POH pages move the mouse over a channel within the window to display a popup window containing information on the channel you are pointing to On E amp A Inject page move the mouse over the mask to display information on the channel you are pointing to On the Overview page move the mouse over the mask to view a status summary On the Channels Pattern E amp A Inject tabs right click the mouse to display a context sensitive menu listing the selections available You can click on some column headers to sort the column into ascending or descending order In the Channels page double click the mouse in a channel to Select or Unselect it Note you can also do this by
223. tton Click the Help button for full details 3 Click the Connect button The Log On to Windows dialog is displayed 4 Log on to the N2X XM controller Use the N2X XM application as normal To disconnect or log off the server If you want to e leave active processes running in the background and reconnect later click the X icon on the server taskbar Alternatively select Start menu gt Shutdown then select Disconnect from the Shut Down Windows dialog e log off and terminate all active processes shut down your PC as normal by selecting Start menu gt Shutdown then select Log off from the Shut Down Windows dialog 184 User Guide To access the online help remotely Remote Access 5 If you are using VNC or DCOM you simply display the online help as normal from the Windows Start menu tester application s Help menu or dialog Help buttons If you are using the API you have these options If your remote computer is a PC with IE3 or later You can view the same help files displayed on the tester PC These help files are Compiled HTML Help CHM files They are viewable on any Windows PC that has Internet Explorer 3 0 or later The HTML Help uses DLLs supplied with IE The CHM help files are provided on the tester PC C Program Files Agilent N2X OmniberX M doc e tester CD doc Endoc Fie Edt view Favorites Tools Help SeBack gt E Qsearch Sy Folders Bristory Os ax A Ee
224. ues 108 Port and Channel Numbering Scheme 142 Power cables 40 power down 67 power requirements 31 Power Up the System 52 Primary Disconnect 34 Problems When Making Measurements 210 Pulse mode alarm burst 103 User Guide Q Quick Selections 71 R rack mount PC 39 Racks 35 Receiver interface 122 Receiver Payload Pattern 123 Regenerator section overhead RSOH Concepts 293 Repackaging 247 Result Updates 138 Results 130 Analysis 133 Results Format 130 RJ 45 cables straight through 41 RX PORT 1 236 S S1 Byte Synchronization status message 106 S1 sync status byte SDH Concepts 294 SONET Concepts 275 Safety 23 Safety Precautions 19 Safety symbols 21 Save events to a file 135 SDH LO Channel Numbering 142 Section overhead SOH Concepts 274 Section Overhead Bytes Transmitter 107 Select which events to log 135 Selected and Unselected Channels 144 Sequence overwrite mode 117 Service Disruption Time Viewing 138 Setting up the VT TU PDH Transmit Receive Interface 143 Shipment 246 Shortcuts Windows 70 Index Signal label V5 SDH Concepts 306 SONET Concepts 286 Signal label byte C2 SDH Concepts 301 Signal Scrambling 89 Single Measurement Mode 137 single mode fiber 62 SMA cable 41 SONET LO Channel Numbering 142 Specifications 18 232 Start a session 82 Start Menu 75 Start the Software 63 Static Electricity 40 Static overwrite mode 117 S
225. under test DUT Connect the output of the DUT to the N2X XM RX PORT 1 port Be aware of the safety factors involved before connecting disconnecting optical cables see Do not look into a Transmit laser on page 58 2 Select the Add Port button on the Toolbar and select the modules and ports you intend to use for this measurement 3 Switch ON the laser for the modules you are using Select the Physical tab and ensure the Transmitter and Receiver VT TU Mode selection is set to On 5 Select the POH tab and view the current Transmitter J2 Path Trace Message edit the message if required Monitor J2 Path Trace Message 6 Select the Connectivity tab click the button at the top right of the display if you cannot see the Connectivity tab 7 The default condition is that all ports in your current session are included in the Path Trace test If you wish to perform the test on only one port select the port then click in the On selected port only box Set up expected Path Trace Message s 219 8 Measurements 220 You can set up the expected path trace message s either by manually entering a value by copying the values from the signal transmitted from a port or by copying the values from the signal at the receiver input Use the Copy Expected Messages From options to copy from a selected Tx port or from the Current Rx If you choose to copy values from the signals at the transmit or receive ports select the Copy Now butt
226. utary Unit Tributary Unit Alarm Indication Signal Tributary Unit Group Tributary Unit Loss Of Multiframe Tributary Unit Loss Of Pointer Tributary Unit Pointer New Data Flag Transmitter 263 11 264 AS NEQ NEQ P NEQ V TP ex G A ie Ses 6 G UT V BIP VBR VC VC AIS VC n VID VLAN VP VT VT PTE WAN WDM UnAvailable Second Unit Interval Unequipped Synchronous Transport Signal Path Unequipped Virtual Tributary Path Unequipped Unshielded Twisted Pair Unit Under Test Virtual Tributary Path Bit Interleaved Parity error also CV V Variable Bit Rate Virtual Channel ATM Virtual Container Alarm Indication Signal Virtual Container VLAN Identifier Virtual Local Area Network Virtual Path ATM Virtual Tributary Virtual Tributary Path Terminating Equipment Wide Area Network Wave Division Multiplexing User Guide User Guide WIS WWDM X X Connect X bits Y Z Yellow 11 WAN Interface Sublayer Wide Wave Division Multiplexing Cross Connect DS3 bits X1 and X2 Yellow Alarm 265 11 266 User Guide Telecoms Concepts 11 Signal Rates Rate Mb s Optical Carrier SONET STS SDH STM 51 84 OC 1 STS 1 STM 0 155 52 OC 3 STS 3 STM 1 466 56 OC 9 STS 9 STM 3 622 08 OC 12 STS 12 STM 4 933 12 OC 18 STS 18 STM 6 1244 16 OC 24 STS 24 STM 8 1866 24 OC 36 STS 36 STM 12 2488 32 OC 48 STS 48 STM 16
227. utgoing error indication OEI and a 76 byte multiframe containing a tandem connection access point identifier TC APId 302 User Guide User Guide Telecoms Concepts 11 C2 Byte Mapping Bits 1to4 Bits5to8 Hex Description Code 0000 0000 00 Unequipped or supervisory unequipped 0000 0001 01 Equipped non specific 0000 0010 02 TUG structure 0000 0011 03 Locked TU 0000 0100 04 Asynchronous mapping of 34 Mb s or 45 Mb s into the container C 3 0001 0010 12 Asynchronous mapping of 140 Mb s into the container C 4 0001 0011 13 ATM mapping 0001 0100 14 MAN DQDB mapping 0001 0101 15 FDDI mapping 1111 1110 FE 0 181 test signal TSS1 to TSS3 mapping 1111 1111 FF VC AIS 303 11 Telecoms Concepts 304 G1 Bits 5 to 7 Coding and Interpretation Bits 5 to Description Triggers 7 000 No remote defect No remote defect 001 No remote defect No remote defect 010 Remote payload defect LCD 011 No remote defect No remote defect 100 Remote defect RDI P ERDI P AIS LOP TIM UNEQ or PLM LCD 101 Remote server defect ERDI P S AIS LOP 110 Remote connectivity defect ERDI P C TIM UNEQ 111 Remote defect ERDI P P AIS LOP TIM UNEQ or PLM LCD User Guide Telecoms Concepts 11 N1 Bits 7 and 8 Multiframe Structure Frame N1 Bits 7 and 8 Description Number 1to8 Frame alignment signal 1111 1111 1111 1110 9to12 TC APId byte 1 1 C1 C2 C3 C4 C5 C6 C7 13to16 TC APId byte 2 OXXXXXXX
228. variables for Administrator variable Value TEMP C Documents and Settings Administrator Local Setti TMP C Documents and Settings Administrator Local Setti 3 Click New to create a new variable OR select an existing New Edit Delete variable and click Edit to change it poeem 4 Enter the variable name and value variable AGT DUMMY MODULE LIST AGT MODULE TWOPORT OC48 CM_ADDRESS 10 0 0 1 Neen Ce ee jEdit System Variable EES NUMBER_OF_PROCESSORS 1 X Edit System Variable 21 x Variable Name AGT_DUMMY_MODULE_LIST New Edit Delete Variable Value j AGT_MODULE_FOURPORT_GBE_SX AGT_IV Cancel j C J a User Guide 203 7 System Administration To start and stop services Control Panel Eile View Favorites Tools Help 1 From the Start Menu select Settings then Control Panel Monitoring Regional Accessibility Add Remove Add Remove Administrative Options Hardware ax Folder Options Mouse Programs Fonts Agent Scanners and Cameras Options Tasks Network and Dial up Co Scheduled 2 Double click Administrative Tools then Computer Management Date Time Display Tools a4 amp S Game Internet Keyboard Controllers Options d 4 Phoneand Power Options Modem Sounds and System Multimedia iol x Ele Edt view Favorites
229. ve their Errors ON and Errors OFF controls activated by a single operation The specific error types on each port can be selected individually allowing different error conditions to be generated on a port by port basis The feature applies to all error generation modes Continuous and Pulse Burst Alarm On Off All relevant ports within a session can have their Alarm ON and Alarm OFF controls activated by a single operation The specific alarms which apply to each port can be selected individually allowing different alarm conditions to be generated on a port by port basis The feature applies to all alarm generation modes Continuous Pulse Burst and Timed Burst Single Selecting the Single icon adds a single error of the type you have configured for a port and or transmits a SEF OOF event for any port that has been configured to transmit a SEF or OOF event For example if for a selected port you select the E A Inject tab and set up Add Errors to add CV S B1 Transport Errors and Add Alarms to add RDI P Path Errors then when you select Single a single CV S B1 error is transmitted and also a single Path RDI P event User Guide Getting Started 3 Turn on all Lasers and set up Physical parameters for each Port You can switch all the lasers on or off for the selected ports see below or switch on or off individual lasers see step 6 of To set up the transmitter and receiver interface on page 85 Ports EJ amp Q W Conf
230. verwrite STS Path HO Path overwrite 118 To perform a static overwrite on overhead byte s 1 Check that you have set up the Transmitter Physical Mode Type as required Select the Physical tab and set the Mode Type as required 2 Select the OH Overwrite tab Determine whether you wish to overwrite Transport Section or STS Path HO Path bytes and set the Type field as required Type field set to Transport or Section From the Bytes field select a byte group from the drop down menu or click on the Select button From the Select Transport Section Overhead Bytes dialog box choose an STS3 STM1 Number and select up to 9 overhead bytes for overwriting Select OK when finished Type field set to STS Path or HO Path Click on the Bytes Select button and from the Select STS Path HO Path Overhead Bytes dialog box select the path and up to 8 overhead bytes for overwriting Select OK when finished 4 Set the Mode field to Static 5 In the OH Overwrite display click on the cell under each of the bytes you have selected and enter the new overwrite value for each byte Click on the Start button to begin overwriting the selected bytes and click Stop to stop overwriting To delay user selected overhead byte s When the Transmitter is set to Intrusive Thru Mode you can delay user selectable TOH SOH bytes by up to 512 Frames 1 Select the Physical tab and set Mode Type to Thru and Thru Mode Type to Intrusive 2 Select the OH Ov
231. very information Problem Recovery Windows or the tester If you have an existing Windows NT controller software has somehow been from Agilent you may be able to use a backup corrupted partition on the PC hard disk see To recover from system problems on page 206 To install the latest tester software on this partition see Chapter 4 Software Installation Upgrades The PC hard disk has been If you need assistance contact Technical corrupted Support see To contact us in the Installation chapter 195 g 196 System Administration To change the password First log on as Administrator The password is preset in the factory to be blank but you might need to change it to conform to company conventions 1 2 Press Ctrl Alt Delete to display the Windows Security dialog Click on the Change Password button to display the Change Password dialog Enter the Old Password blank then the New Password in both fields To create a user account To install and use the Agilent N2X OmniberXM software a new user account must be given administrators privileges These are needed to for example set up TCP sockets Thus log in using the Administrator account to give new accounts the required access Initially there is no password for this account but if one has been set up enter it The rest of the procedure depends on the Windows system Windows 2000 1 Select Start menu gt Settings gt Control Pa
232. which in turn connects to the N2X XM modules The Ethernet port configured for your LAN is labelled To LAN If you have not already connect this port to your LAN This chapter describes e different methods of remote access e how to use the different methods for desk or home access e how to set up the tester and remote computers for remote access User Guide Remote Access 5 Consult with your system administrator to ensure correct CAUTION sore configuration of the N2X XM on your network and to determine any security restrictions to networking the tester You will need to obtain for the tester a network IP address domain or workgroup unique host computer name Please note that when setting up a DCOM server and client you must ensure that both the tester and remote computers are on the same network and belong to the same domain or workgroup When using the API remotely ensure that the tester and remote computer are both in the same network Types of Remote Access API access To accommodate different customer preferences two API syntax styles are available within the single command set e SCPI based syntax e TCL syntax The tester s API allows several remote users to launch separate test sessions from remote PCs or UNIX workstations The GUI is not used You must install SCPI Tcl Tk and the tester s Tcl package on the remote computer see To use the API remotely on page 179 User Guide 161
233. will be errored alarmed when the N2X XM error add alarm function is enabled You can also use the Controller keyboard up down arrows to select channels and the spacebar to toggle the add error alarm function Path error add modes Path errors can be added singly on demand at a user defined rate or as a timed burst To add single errors Click on the Single Error Add button Note that each channel is errored completely independently of all the other channels When a single error is added it is added to all of the selected channels in the mask The error will be added to each channel User Guide 101 3 Getting Started 102 at the next valid point in time For example if you are adding a single CV P B3 error then the error will be added to each channel on the next occurrence of its B3 byte within the POH Error Rates Errors can be added at a rate of w xyE z where w xy is 1 00 to 9 99 and z is 3 to 7 For example 1E 3 will give a result of 1 000E 3 on the Receiver Error Distribution In multi channel mode when an error is added to B3 or to the pattern the same bit positions are always errored Error Rate Mappings Add Errors Type STSPah CV P B3 Type Rate STS 1 1 00E 6 ST5 3c 1 00E 6 STS 6c 1 00E 6 STS 9c 1 00E 6 STS 12c 1 00E 6 STS 24c 1 00E 6 STS 48c 1 00E 6 75 192c 1 00E 6 Range 1 00E 10 to 2 12E 4 To set error rate mappings 1 You can set the error add rate for each mapping inde
234. xit and log out 76 To get online help 77 User Guide Tool Bar Explained 78 Configure a session offline 81 Example of N2X XM setup 82 To start a session and select modules and test ports 82 Ganged Port Operation 84 Turn on all Lasers and set up Physical parameters for each Port 85 Setting up the Transmitter and Receiver Interface 85 Select Terminal or Thru mode 86 Setting up the Transmit Clock source 87 External Clock Reference 88 Selecting Signal Scrambling 89 Selecting STS 1 Bulk Filled Stuff Column Overwrite 90 To Copy Port Settings to other Ports 90 Transmitter and Receiver Channels Setup 91 Advanced Channel Configuration 93 Set Up Transmitter Payload Pattern 95 Add Errors or Alarms to the test pattern 96 Adding Errors and Alarms 97 Adding Path Errors Alarms 98 Selecting which channels to insert Path errors alarms 101 Set up Transmitter TOH SOH 105 Generating K1 K2 Automatic Protection Switching APS Messages 105 Generating Synchronization Status Messages 106 Editing Transmitter Section Overhead Bytes 107 Adjusting SPE or AU Pointer Values 108 Generating a JO Section Trace Message 109 Overhead Byte Group Capture 110 Edit Transmitter Path Overhead Bytes 113 Generating a J1 Path Trace Message 114 Overhead Byte Overwrite 115 User Guide Overwrite Modes 117 Setting up the Receiver 121 To set up the Receiver interface 122 To Set up Receiver channels 122 Set Up Receiver Payload Pattern 123 To Monitor
235. xt dialog to set up the channels Note Direct mapping is where non VT TU structured DS3 E3 PDH signals are mapped into STS 1 AU 3 signals Selected and Unselected Channels Each LO channel can be defined as Selected or Unselected Any unselected channels are set to VT TU Unequipped that is all payload and LO path overhead bytes are set to 00h but the VT TU pointer is the same as that in the selected channels Selected channels contain a full LO POH and payload All channels can be selected up to 1344 VT1 5 TU11 in an OC48 STM 16 for example Any changes to the transmitter channel configuration will take effect with no intermediate states To select unselect VT TU channels 1 Click on the Channels setup tab 2 To toggle a channel between Selected and Unselected click on the channel of interest and then double click the left mouse key to change the selection You can also select and unselect a channel using the spacebar To select a block of channels click on the first channel then shift click on the last channel If you view the Tooltip window for the selected channel you will see the Selected field change from No to Yes or Yes to No Set up Transmitter Receiver Payload Mapping To select transmitter and receiver VT TU payload mapping 1 Check you have set VT TU Mode to On in the Physical tab window 2 Select the Channels tab and then the Mappings button 3 Double click on the Tx Mapping or Rx Mapping field for the VT T
236. y button Add Errors or Alarms to the test pattern 96 You can add errors and alarms to a SONET or SDH signal during testing while in Terminal or Intrusive Thru Mode See Ganged Port Operation on page 84 To add errors and or alarms 1 Click on the E A Inject tab E Physical E Channels Ki Pattem E AIniect R roH H sts Pon W vt POH m Add Errors m Add Alarms m Path Errors amp Alarms Mask Type STS Path Type STSPath 7 CVP B3 7 RDI P ye RDI P Value Default STS 1 1 00E 6 Fee STS 3c 1 00E 6 pees STS 6c 1 00E 6 2 Payload ha STS 3 1 00E 6 STS 12c 1 00E 6 STS 24c 1 00E 6 STS 48c 1 00E 6 ST5 192c 1 00E 6 m Timed Burst Parameters Mode Manual bal Mode Manual z Time On secs 1 Eror Rate On Alarm On ER secs Single Error Add Add Errors 2 Select the Errors Type required 3 If you select Path or Pattern errors set up the Rate for each Payload User Guide User Guide Getting Started 3 4 Set the Add Error Mode field to Manual or Timed Burst refer to Burst Mode Generation on page 103 for information on Timed Burst operation Add Alarms 5 Select the Alarm Type then Alarm Mode 6 Click on the Error Rate and or Alarm On buttons to transmit the selected errors or alarms You can add errors and alarms at the same time Adding Errors and Alarms You can add the following error and alarm types for SONET and SDH Only one e
237. you start a J2 test the N2X XM compares the expected J2 path trace messages with the captured current measured J2 path trace messages and produces a result indicating whether there are any received J2 s in error mismatched Set up Expected J2 Path Trace messages You can set up the expected J2 Path Trace messages either by entering a message manually or by copying the message from the Tx of another port or the Rx input for the currently selected port See Generating a J2 Path Trace Message on page 152 To monitor J2 path routing 1 Select the Connectivity tab click on the gt arrow at the extreme right of the Tool bar if this tab is not visible Note to make it easier to see the full width of the Connectivity display try selecting the Configuration Hide icon on the N2X XM Toolbar Select Configuration Show to return to the normal display 2 If you wish to perform a test on only one port select the port then click in the On selected port only box Otherwise all ports in the current session will be tested for a J2 mismatch 3 Determine the Expected Path Trace message from one of the following methods From the Copy Expected Messages window select either e From Tx on current port or select a port from the drop down menu if there are other ports with the same channel configuration From Current Rx If you select the All Ports box then the Path Trace messages for all ports in the current session are copied a
238. ys as an integer for counts up to 999 999 then changes to X XXX E nn where 6 lt nn lt 15 Ratios Displays as X XXX E nn where 0 lt nn lt 15 Total Cumulative Results All results listed for SONET SDH error results are cumulative totals over the entire measurement period Basic SONET SDH Error Measurements Error Counts Number of errors over the measurement gating period Error Ratio Ratio of counted errors to the number of error opportunities in the measurement period Alarms stopping error counting The following table defines for each error source which alarms prevent error counting 130 User Guide User Guide Getting Started 3 Error Type Alarms that inhibit error counting CV S B1 RS BIP CV L B2 MS BIP CV LFE MS REI CV P B3 Path BIP REI P HP REI Bit LOS LOF LOS LOF AIS L MS AIS LOS LOF AIS L MS AIS AIS P AU AIS LOP P AU LOP LOS LOF AIS L MS AIS AIS P AU AIS LOP P AU LOP LOS LOF AIS L MS AIS AIS P AU AIS LOP P AU LOP RDI P HP RDI LOS LOF AIS L MS AIS AIS P AU AIS LOP P AU LOP PSL Pointer Activity Measurements Pointer Activity Seconds The number of seconds during which a pointer movement occurred Pointer Increment Count The number of pointer increment adjustments in the measurement period Pointer Decrement Count The number of pointer decrement adjustments in the measurement period Pointer Measurement Inhibition Measurement Type Al

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