Agilent Technologies J3916A Computer Hardware User Manual
Contents
1. Start Gating Period F12 NOTE The Gating Time can be modified in Advanced Mode N5980A User Guide 17 Operating N5980A with the User Interface Setting the Instrument Parameters N5980A has two SFP and SMA integrated Pattern Generators which can be adjusted to different parameters for example different patterns or different error insertion rates The N5980A Error Detector has two SFP and SMA different physical input ports while only one input port can be analyzed ata given time The analyzed input can be selected with the User Software There are two setting pages Setup and Advanced Setup In the Setup page you can change the Data Rate which applies for the Pattern Generator and the Error Detector Data Pattern and Logic Level for the Pattern Generator and Data Pattern and the analyzed Input of the Error Detector 1 The following options are under Data Rate and XAUI 3 125 00Mb s is the default data rate AU 3 125 00Mb s ed OL 3 155 52M b s OL 12 622 08k bs OC 48 2 488 32M b s OC 48 with FEC 2 666 00M bs FCs1 1 062 50M b s FCs 2 125 00Mb s FE 125 00Mb s GBEs1 1 250 00Mb s AVAL 3 125 00h 6 s 2 The Data Pattern of the Pattern Generator supports PRBS polynoms clock patterns and K28 5 pattern PRBS 2 23 1 is the default pattern PRES 2 25 1 PRES 2 23 A PRBS 2 31 1 CLE C2. Advanced BER Advanced BER General Gating BER Data Rate xau 3 125 00Mb s v 11 10 9 8 M Generator Data Pattern PRBS 2 23 1 Se Elapsed Gating Time Level EcL 850m x M Error Detector Data Pattern PRBS 2 23 1 Input SMA Electrical v Start Gating Period F12 N5980A User Guide 23 Reference for the User Interface Info This option provides the following information 2659504 Connection Information Connected to Product Number M53804 Seral Number 08150E070406 Remote Frogramming Interface IF Address 134 40 63 68 Port Mumber 5025 Help Menu The Help Menu has the following information About gives you the Software details About Agilent N59804 3 125Gb s Serial BERT i Ea Product Number Agilent M59804 Software Version 0 65 4520 20671 Serial Number O815DE070406 Hardware Revision 0 Firmware Revision 0 61 Copyright Agilent Technologies 00b Error Indicators The GUI screen contains the Error Indicator Detects Loss of Syne There are two indicators and a BER bar see the screen above These indicators inform you about the following errors e Bit error in the data stream e Loss of pattern synchronization e Complete loss of data 24 N5980A User Guide N5980A User Guide Reference for the User Interface BER Bar The BER bar displays the BER calculated during a period of 200 ms Error This ind
3. DoC pdf Declaration of Conformity DataSheet pdf This document contains the product specifications Presales_Presentation pdf Describes typical applications UserGuide pdf This document contains the details about how to use the Serial BERT 8 N5980A User Guide Getting Started Connect the Instrument In order to connect the Serial BERT let s have a look at the Front and the Rear Panels Front Panel The Front Panel has LEDs Data In Out ports and an SFP connector Trigger Output Port Data Output Port Glows Red Signal OUT OUT TRIGG R OS when an error is detected Inverted Output 4 5Vpp diff max SFP Indicates Optical Power in ate i hnologies N5980A Bh Je 3 125 Gb s BERT Power On USB Active Indicator Indicator Figure 1 Front Panel SFP The Small Form Factor Pluggable interface SFP is an industry standard daughter card used in networking devices It interfaces a network device with a networking cable Typically SFP modules are optical transceivers using multimode 850 nm or single mode 1310 nm 1550nm cabling An SFP loopback connector is part of the N5980A shipment delivery This connector is used for functional verification of the SFP port It has an internal loop from the SFP output to the SFP input signal SFP compliant modules can be inserted into the SFP slot While selecting golden SFP modules observe the specifications of the selected devi
4. II pollution degree 2 environment It is designed to operate at a maximum relative humidity of 95 and at altitudes of up to 2000 meters Refer to the specifications tables for the ac mains voltage requirements and ambient operating temperature range Before Applying Power Verify that all safety precautions are taken The power cable inlet of the instrument serves as a device to disconnect from the mains in case of hazard The instrument must be positioned so that the operator can easily access the power cable inlet When the instrument is rack mounted the rack must be provided with an easily accessible mains switch Ground the Instrument To minimize shock hazard the instrument chassis and cover must be connected to an electrical protective earth ground The instrument must be connected to the ac power mains through a grounded power cable with the ground wire firmly connected to an electrical ground safety ground at the power outlet Any interruption of the protective grounding conductor or disconnection of the protective earth terminal will cause a potential shock hazard that could result in personal injury Do Not Operate in an Explosive Atmosphere Do not operate the instrument in the presence of flammable gases or fumes Do Not Remove the Instrument Cover Operating personnel must not remove instrument covers Component replacement and internal adjustments must be made only by qualified personnel
5. PRBS patterns Clock patterns and K28 5 pattern The drop down screen below lists the available patterns To view all the patterns use the scroll bar PRBS 2723 1 PRBS 2 23 PRBS 2 31 1 CLE CLEA4 CLES CLE 10 CLE 16 CLE 20 Level There are two levels provided the ECL and the LVDS N5980A User Guide N5980A User Guide Reference for the User Interface Error Detector Data Pattern The Error Detector ED has a built in CDR for automatic clock recovery and phase alignment The ED also performs automatic polarity correction when required Additionally it can detect the incoming PRBS The input for the Data Pattern has two options SMA Electrical and SFP Optical SMA Electrical is the default input for the Error Detector Automatic Error Detector determines the incoming data stream automatically The supported data streams are PRBS 2 7 1 PRBS 2 15 1 PRBS 2 23 1 PRBS 2431 1 SFP Optical The data pattern is taken from the current setting on the SFP Generator generator output SMA Electrical The data pattern is taken from the current setting on the SMA Generator generator output PRBS 247 1 A PRBS 2 7 1 is used for pattern synchronization PRBS 2415 1 A PRBS 2 15 1 is used for pattern synchronization PRBS 2 23 1 A PRBS 2 23 1 is used for pattern synchronization PRBS 231 1 A PRBS 2 31 1 is used for pattern synchronization Input There are two inputs to the Error Detector the SMA Electric
6. Recall Setting Factory Default Setting Instrument Default Setting Exit Advanced Mode The Advanced Mode allows you to change the settings and view the results in the Advanced and the Advanced BER pages Store Setting This saves the changes made to the setting To enable this menu option you need to store a setting first 21 Reference for the User Interface Store Setting As This is used to store recall any setting with a user selected filename The user selects a specific location and file name to save the settings Recall Setting This recalls the saved settings Factory Default Setting Restores the factory default settings and is useful when the user has problems finding a defined instrument state Instrument Default Setting This is enabled only when Advanced Mode is on The Instrument Default Setting has three options related to the default setting Store Current Setting As Instrument Default stores the instruments current setting as default for this instrument The instrument default setting will be automatically applied whenever the user software connects to the instrument The instrument default setting is stored individually for each instrument based on the instrument s serial number Recall Instrument Default Setting recalls the instrument s default setting Delete Instrument Default Setting deletes the instrument s default setting If no User Setting exists the factory default
7. Reference Trigger Output The trigger output is accessible via the root node SOUR3 Pattern SOUR3 PATT Syntax SOQUR3 PATT SOURS PATT CLK2 CLK4 CLK8 CLK10 CLK16 CLK20 Description Either sets or gets the pattern of the trigger output Available Patterns Name Parameter Clock 2 CLK2 Clock 4 CLK4 Clock 8 CLK8 Clock 10 CLK10 Clock 16 CLK16 Clock 20 CLK20 Error Detector The Error Detector channel is accessed via the root node SENS1 Detected Pattern SENS1 PATT Syntax SENS1 PATT Description Gets the pattern that is currently used on the Error Detector to compare it with the incoming data stream This might change when the Error Detector detects a very high error ratio and tries to synchronize with the incoming data Response Error Detector Pattern Response PRBS 2 7 1 PRBS7 PRBS 2 15 1 PRBS15 PRBS 2 23 1 PRBS23 PRBS 2 31 1 PRBS31 Error Detector has lost pattern UNKNOWN synchronization 38 N5980A User Guide Programming Reference Synchronization mode SENS1 SYNC TYPE Syntax SENS1 SYNC TYPE AUTO SFP SMA PRBS7 PRBS15 PEBS23 PRBS31 SENS1 SYNC TYPE Description Either sets or gets the synchronization type The synchronization type defines which patterns will be used to synchronize when a synchronization loss is detected by the Error Detector Available Synchronization Synchronization behavior Types AUTO The Error Detector will use all available patterns to
8. Time Level ECL 850m x M Error Detector Data Pattern PRBS 2 23 1 Input SMA Electrical v Start Gating Period F12 The Setting Parameters area of the screen has options for setting parameters like Data Rate Data Pattern and so on The Viewing Results area of the screen runs the test and displays the results The User Software operates in two modes Standard Mode and Advanced Mode In Standard Mode you can modify the basic instrument setting and view the results In Advaced Mode you can modify the detailed instrument settings and view all the results NOTE For more details check the Reference for the User Interface 16 N5980A User Guide Operating N5980A with the User Interface Running the BER Test The User Software supports a quick pass fail measurement which is generally used for testing the DUT in manufacturing This measurement allows you to count the number of bit errors during a user specified gating time The result of the measurement is displayed as Gating Errors Gating BER and by a simple red fail green pass color coding of the Gating BER bar 1 To run the basic measurement click on Start Gating Period or F12 Start Gating Period F12 2 Incase you want to stop the running measurement click on Abort Gating Period ESC 3 Once the measurement is complete the results would appear as follows BER Advanced BER Gating BER Elapsed Gating Time
9. ipHostEntry AddressList 0 create TcpClient and connect it to the instrument m Client new TcpClient m Client Connect new IPEndPoint ipAddress port m Stream m Client GetStream catch Exception e MessageBox Show e Message Connect lt summary gt Close the connection with the N5980A software 42 N5980A User Guide N5980A User Guide Programming Reference lt summary gt public void Disconnect if m Client null m Client Close lt summary gt Write to a SCPI command to a network socket and return the response if it was a query lt summary gt lt param name s gt SCPI command to be written to the socket lt param gt lt rveturns gt Response of the instrument or an empty string if there is no response lt returns gt public string Send string s string response int 1 Write the string to the network socket byte bufferout new byte s Length 1 for i 0 i lt s Length i bufferout i byte s il bufferout s Length byte n m Stream Write bufferout 0 bufferout Length If the string containes a then it is a query and the response nneds to be read from the instrument if s IndexO 1 Read resonse from network stream int numRead m Stream Read bufferin 0 bufferin Length if the response contained any bytes then convert them to a valid string if num
10. synchronize with the incoming data stream SFP The Error Detector will use only the pattern that is set for the SFP output SMA The Error Detector will only use the pattern that is set for the SMA output PRBS7 The Error Detector will only use a PRBS 2 7 1 data stream PRBS15 The Error Detector will only use a PRBS 2 15 1 data stream PRBS23 The Error Detector will only use a PRBS 2 23 1 data stream PRBS31 The Error Detector will only use a PRBS 2 31 1 data stream Actual Bit Error Rate SENS1 FETC ERAT DELT Syntax SENS1 FETC ERAT DELT Description Gets the bit error ratio of the last update interval approx 200ms Actual Number of Errors SENS1 FETC ECO DELT Syntax SENS1 FETC ECO DELT Description Gets the number of errors that have been counted during the last update interval approx 200ms N5980A User Guide 39 Programming Reference Gating Time SENS1 GATE PER Syntax SENS1 GATE PER SENS1 GATE PER integer Description Either gets or sets the duration of the gating interval The allowed range for the gating time is 1s to 608399s 168 hours 59 minutes 59 seconds The gating time is always in seconds Fractional seconds are not supported and will be rounded to the closest time in seconds Gating Bit Error Rate SENS1 FETC ERAT Syntax SENS1 FETC ERAT Description Gets the bit error ration that is captured during the gating interval This value might will change while the gating
11. Agilent 3 125 Gb s Serial BERT N5980A User Guide Agg Agilent Technologies Notices Agilent Technologies Inc 2006 No part of this manual may be reproduced in any form or by any means including electronic storage and retrieval or translation into a foreign language without prior agreement and written consent from Agilent Technologies Inc as governed by United States and international copyright laws Manual Part Number N5980 91010 Edition Revision 1 0 May 2006 Printed in Germany Agilent Technologies Deutschland GmbH Herrenberger Str 130 71034 Boblingen Germany For Assistance and Support http www agilent com find assist For Product Updates http www agilent com find manufa cturing BERT Warranty The material contained in this document 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 merchantability and fitness for a particular purpose Agilent shall not be liable for errors or for incidental or consequential damages in connection with the furnishing use or performance of this document or of any information contained herein Should Agilent and the user have a separate written agreement with warranty terms coveri
12. Instruments that appear damaged or defective should be made inoperative and secured against unintended operation until they can be repaired by qualified service personnel Safety Symbols on Instruments amp General Recycling Mark for Indicates warning or caution If Notice for European Community plastic parts used in the product you see this symbol on a product This product complies with the you must refer to the manuals for relevant European legal specific Warning or Caution Directives EMC Directive information to avoid personal 89 336 EEC and Low Voltage injury or damage to the product Directive 73 23 EEC C o Midis Safety requirements for electrical equipment for measurement Conformity Mark of the control and laboratory use Australian ACA for EMC CAN CSA C22 2 No 1010 1 compliance 1993 UL 3101 3111 First Editions This equipment has also been evaluated to IEC 61010 edition including amendments 1 and 2 Environmental Information This product complies with the WEEE Directive ZUU4 H BTEC marking requirements The affised label Indicates that you must not discard this electricals electronic product in domestic household waste Product Category Vain reference fo the equwoment fyoes In Ehe WEEE Orectve Annex fis productis gassed as a Monforing and Control instrumentatian product Do not dispose in domestic household waste To refurn unwanted products contact your focal Agilent office o
13. LE 4 CLES CLE 10 CLE 16 CLE 20 Use the scroll bar to see the complete list of patterns provided 3 Logic Level has two options ECL 850mV and LVDS 400mV ECL 850mV is the default level 4 Error Detector Pattern For details refer to Error Detector Error Detector Input has two options SMA Electrical and SFP Optical SMA Electrical is the default input for the Error Detector N5980A User Guide N5980A User Guide Operating N5980A with the User Interface Advanced To view the Advanced page click on the File menu and enable the Advanced Mode Connection Help Store Setting Store Setting 45 Recall Setting Factory Default Setting Instrument Default Setting Exit The Advanced page has the following settings SFP Data Pattern PRES 2794 1 SM Data Pattern PRES ac SFP Error Insertion Rate None Once SM Error Insertion Rate None Once Trigger Cut CLE r Error Detector Gating Time In this page you can set SFP and SMA Data Patterns Error Insertion Rate and also select Clock Trigger Output for the Generator It also gives the option for setting the Gating Time for the Error Detector 19 Operating N5980A with the User Interface Viewing the Results There are two options for viewing the results BER and Advanced BER as shown below BER Advanced BER Gating BER 11 10 93 BF RB RH 0 Elapsed Gating Time o Start Gatin
14. R is 0 0 and turns red if the test fails Gating BER gt 0 0 N5980A User Guide N5980A User Guide Reference for the User Interface The screenshot below shows the Gating BER Bar Gating BER Elapsed Gating Time This bar shows the gating time while the test runs Before the test begins this bar is empty as shown below Elapsed Gating Time And after the gating time is complete this bar appears as shown below Elapsed Gating Time Advanced BER This page contains Gating Error Actual Error Error Detector Pattern Gating BER Bar and Elapsed Gating Time Gating Errors This indicates the number of Errors that occurred during the gating time Actual Errors This indicates the number of errors that occurred during the last update interval of 200ms Error Detector Pattern This displays the pattern that is currently being used by the Error Detector 29 Programming Reference 30 5 Programming Reference Introduction The SCPI commands represent the instrument s advanced analysis and pattern generation features that can be controlled from within the remote programs Programming can only be done using raw Windows Sockets The remote programming language is close to SCPI but it s without a full featured SCPI parser Thus Nd5980A is not SCPI1997 compliant The missing standard SCPI features Status handling registers Support of short and long form of SCPI commands the commands must be sent ex
15. Read gt 0 StringBuilder sb new StringBuilder for i 0 i lt numRead i sb Append char bufferin i make sure that all kind of terminators are reported as r n sb Append r n response sb ToString Trim new char r n Pe if response IndexOf r n 1 response response Replace r n n if response IndexOf r 1 response response Replace r r if response IndexOf n l 1 response response Replace n r a return response Communicate with the instrument Given the class above the communication with the instrument can be done like this using System using System Collections Generic namespace TBertExample static class Program 43 Programming Reference Ad lt summary gt The main entry point for the application lt summary gt STAThread static void Main N5980A instrument new N5980A Connect to the N5980A software running on the same PC as this program and that is using port number 5025 instrument Connect localhost 5025 set the data rate to OC 3 instrument Send freq OC3 read the data rate string response instrument Send freq Close the socket gt disconnect from the instrument instrument Disconnect From here on it is no longer possible to communicate with the instrument N5980A User Guide
16. Reference SFP Output Optical Generator The SFP output is accessed via the root node SOUR2 Pattern Syntax Description Available Patterns 36 SOUR2 PATT SOUR2 PATT SOUR2 PATT PRBS7 PRBS15 PRBS23 PRBS31 CLK2 CLK4 CLK8 CLK10 CLK16 CLK20 K28 5 Either sets or gets the pattern of the SFP output Name Parameter PRBS 27 1 PRBS7 PRBS 2 15 1 PRBS15 PRBS 2 23 1 PRBS23 PRBS 2431 1 PRBS31 Clock 2 CLK2 Clock 4 CLK4 Clock 8 CLK8 Clock 10 CLK10 Clock 16 CLK16 Clock 20 CLK20 K28 5 K28_5 N5980A User Guide N5980A User Guide Programming Reference Error Insertion The error insertion is capable to enforce a given error ratio and to add single errors into the data stream Both are available in parallel Insertion Rate SOUR2 PATT EADD RATE Syntax SQUR2 PATT EADD RATE SOUR2 PATT EADD RATE NR3 Description Either sets or gets the error insertion rate Only the listed error rates are available If another value is specified while sending the command the error rate will be rounded to the next available value Available Insertion nate Inserted error rate Parameter None 0 le 3 le 3 1e 4 1e 4 1e 5 1e 5 1e 6 1e 6 1e 7 1e 7 1e 8 1e 8 1e 9 1e 9 Add Single Error SOUR2 PATT EADD ONCE Syntax SOUR2 PATT EADD ONCE Description Adds a single error to the generated data stream This is available even if the cyclic error insertion is active 37 Programming
17. a USB Techealogies NB5SB0A Oeria hehe XG Agian wo Powe Active o 2 Figure 3 Serial BERT setup diagram Install User Software for N5980A The requirements for software installation Either Windows 2000 Service Pack 4 or Windows XP Service Pack 2 Microsoft NET Framework 2 0 is automatically downloaded from the Microsoft download center during installation Alternatively dotnetfx exe may be run from the installation CD in order to install the Microsoft Net Framework 2 0 This step should be executed in case Net Framework 2 0 is not already installed on the computer or the available internet connection is slow To execute the User Software Microsoft NET Framework 2 0 is required N5980A User Guide 11 Getting Started 12 To Install the User Software for N5980A 1 Insert the CD in the PC s CD Drive 2 Double click T di mi z 5 p M59804 Displays the Welcome screen 3 The Installer guides you through the installation process ie Agilent M59s0A Welcome to the Agilent N5980A Setup Wizard The installer will guide you through the steps required to install Agilent N5S804 on pour computer WARNING This computer program is protected by copyright law and international treaties Unauthorized duplication or distribution of this program or any portion of it may result in severe civil or criminal penalties and will be prosecuted to the masinum extent possible under the law ie A
18. actly like noted below No default suffixes Only a few of the standard commands e g OPC is missing The commands must always be complete even for the second parameter that belongs to the same root node inside a transaction Example SCPI allows gt SOURL PATT PRBS7 EADD ONCE N5980A needs SOUR1L PATT PRBS7 SOUR1 PATT BEADD ONCE See Sample Code as an example to control the N5980A from within a remote program Common Command Summary TST OPC RST IDN SORT Agilent N5980A Command Summary FREQ FREQ MMEM STOR STAT MMEM LOAD STAT SYST ERR SOUR1 PATT SOURI PATT SOUR1 PATT EADD SOURI PATT EADD RATE SOUR1 PATT EADD RATE N5980A User Guide SOURI1 SOUR1 SOUR2 SOUR2 SOUR2 SOUR2 SOUR2 SOUR3 SOUR3 SENS1 SENS1 SENS1 SENS1 SENS1 SENS1 SENS1 SENS1 SENS1 SENS1 SENS1 SENS1 SENS1 SCPI Instrument Command List Reference VOLT VOLT PATT PATT PATT EADD PATT EADD RATE PATT EADD RATE PATT PATT SYNC TYPE SYNC TYPE PATT GATE PER GATE PER FETC ECO PETC ECO DELT FETC ERAT FETC ERAT DELT INP INP GATE STAT GATE STAT Programming Reference The following reference section lists the instrument commands The commands are described and in addition the available attributes for certain commands are also
19. al and the SFP Optical Advanced In the Advanced tab you can separately set the Data Patterns and Error insertion for the SFP and SMA generator outputs Generator SFP Data Pattern In this drop down list you have the same set of patterns as in the setup page to select from The selected pattern will affect the SFP output SMA Data Pattern In this drop down list you have the same set of patterns to select from The selected pattern will affect the SMA output 21 Reference for the User Interface On the advanced page the SFP and the SMA Data pattern can be adjusted independently SFP Error Insertion Rate This drop down list gives a set of Error Insertion Rates that can be inserted for the SFP output SMA Error Insertion Rate This drop down list gives a set of Error Insertion Rates that can be inserted for the SFP output Both the lists contain the same set of Error Insertion Rates The following screen shows this list None Mone Trigger Out The Trigger Out lists a set of clock triggers The list is shown below CLK s Error Detector Gating Time The Gating Time can be set in terms of hour minute and seconds The maximum gating time is 168 hours 59 minutes and 59 seconds BER and Advanced BER Tab 28 BER Gating BER Bar This BER Bar indicates the Bit Error during the Gating Period Once the Gating Period is complete this Bar turns green if the test passes Gating BE
20. ars Agilent N5980A File Connection Help lt gt i D o a a a a a ne Error ay Loss 11 10 9 8 7 6 5 4 3 2 4 0 Setup Advanced BER Advanced BER M General Gating BER Data Rate xau 3 125 00Mb s v M Generator Data Pattern PRBS 2 23 1 Yv Elapsed Gating Time Level ECL 850m x m Error Detector Data Pattern PRBS 2 23 1 Input SMA Electrical v eA T E Start Gating Period F12 44 40 79 Te Demo Offline In Demo Offline mode N5980A need not be connected to the PC The connection dialog looks like the screen below N59804 Connection Setup Available Devices Refresh Remote Programming Setup Demo Offline Fort AO25 Evit Click Demo Offline to start the offline version of the GUI NOTE Before disconnecting the USB cable or powering down the instrument make sure you have closed the User Software N5980A User Guide 15 Operating N5980A with the User Interface 3 Operating N5980A with the User Interface Introduction The graphical user interface runs on the PC and the screen is divided into two areas one for setting parameters and the other for viewing results Agilent N5980A File Connection Help HA 10 9 8 a 6 5 4 3 2 0 one Setup Advanced Setting Parameters BER Advanced BER Viewing Results General Gating BER Data Rate M Generator Data Pattern PRBS 2 23 1 Elapsed Gating
21. ce Make sure that the supported maximum PRBS length and the maximum data rate matches with the N5980A settings Make sure that the wavelength of the SFP module and the cabling are identical and that the optical power is within the specified limit To measure BER at the SFP input select the Input SFP Optical in the user interface N5980A User Guide 9 Getting Started LED LEDs Function Power LED Indicates power on USB Active Indicates that the instrument is currently being used controlled by the user software Signal Detect Indicates the status of the Signal Detect line when the inserted SFP module supports a Signal Detect Control line Usually this pin indicates whether the optical input power is above or within the specified range Data Error Indicates that the error detector has detected bit errors Rear Panel The Rear Panel has the USB connector the Power in and the safety symbols Kensington ack insae N10149 USB Connector Figure 2 Rear Panel For proper ventilation keep the Serial BERT at a distance of 2 cm on both sides and 10 cm at the back To Connect N5980A 1 Connect the N5980A power cord at the rear panel Power In 2 Connect the instrument via USB to the PC on which the User Interface will be installed Some USB hubs might decrease performance If possible directly connect the N5980A to your PC 10 N5980A User Guide Getting Started The Serial BERT is connected to the PC vi
22. described Common Commands ID Query IDN Syntax IDN Description N5980A User Guide Reads the identification string from the instrument The format of the identification string is Agilent Technologies Product Number Serial Number Revision Info Product Number is currently N5980A Serial Number is read from the instrument hardware 0 if offline Revision Info consists of Application Revision Microsoft w x y z format Instruments Firmware Revision Major Minor 0 if offline Hardware Revision 0 if offline 31 Programming Reference Read error queue Syntax Description SYST ERR SYST ERR Reads one error from the instruments error queue Load factory default setting Syntax Description RST RST Discards the current instrument setting and loads the reset default setting Operation complete Syntax Description Option Query Syntax Description Self test Syntax Description 32 OPC OPC Returns 1 when all pending commands have been executed Blocks until all pending commands are executed OPT OPT Reports all instrument options Currently the instrument does not have any option so this query reports 0 Output always return 0 TST TST Performs the instrument selftest Returns 0 in case of success and 1 in case of errors during the selftest Error messages that are discovered during the selftest will be stored in
23. eed beyond a CAUTION notice until the indicated conditions are fully understood and met 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 N5980A User Guide Safety Summary General Safety Precautions The following general safety precautions must be observed during all phases of operation of this instrument Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design manufacture and intended use of the instrument Agilent Technologies Inc assumes no liability for the customer s failure to comply with these requirements Before operation review the instrument and manual for safety markings and instructions You must follow these to ensure safe operation and to maintain the instrument in safe condition General This product is a Safety Class 1 instrument provided with a protective earth terminal The protective features of this product may be impaired if it is used in a manner not specified in the operation instructions All Light Emitting Diodes LEDs used in this product are Class 1 LEDs as per IEC 60825 1 Environment Conditions This instrument is intended for indoor use in an installation category
24. g Pernod F12 BER displays Gating BER and the Elapsed Gating Time The Advanced BER page can be opened only when Advanced Mode is enabled See below BEA Advanced BER Gating BER Elapsed Gating Time Gating Errors 9 000E 000 Error Detector Pattern Actual Errors PRBS 2423 1 0 000E 000 Start Gating Pernod F12 In this page you can see the Gating Errors Actual Errors and the Pattern that is currently being used by the Error Detector 20 N5980A User Guide Reference for the User Interface 4 Reference for the User Interface File Menu N5980A User Guide This section explains the measured parameters and the display options that are specific to these measurements Additionally some information is provided to explain the theoretical background to these measurements When N5d980A is launched the following screen is displayed Agilent N5980A File Connection Help lt gt ne Error Sa 11 10 9 8 4 6 5 4 3 2 A 0 Setup Advanced BER Advanced BER General Gating BER Data Rate AU 3 125 00Mb s v Generator AA a yes GE Data Pattern PRBS 2 23 1 Elapsed Gating Time Level ECL 850m v Eror Detector Data Pattern PRBS 2 23 1 Input SMA Electrical v Start Gating Period F12 The File menu has the following options Agilent N5980A aE Connection Help Advanced Mode Store Setting Store Setting 45
25. gilent HIFBOA Select Installation Folder The installer will install Agilent M59804 to the following folder To install in this folder chek Next To install to a different folder enter it below or click Browse Folder C Program Files Agilent N59608 Install Agilent MW59804 for yourself or for anyone who uses this computer Everyone O Just me N5980A User Guide N5980A User Guide Getting Started Select the folder in which N5980A will be saved iz Agilent N5980A Confirm Installation ie Agilent N59B0A Installing Agilent N5980A 13 Getting Started After the installation is completed click Finish to close the installer ie Agilent Ho9G0A Installation Complete Agilent M59804 has been successtully installed Click Close to exit Please use Windows Update to check for any critical updates to the NET Framework Cancel To Access N5980A To launch N5980A go to Program File and click on E iu s t n b oa l P n E M59804 If there is a N5980A connected to the PC via USB and the User Software is installed then the following screen appears NS9804 Hardware Initialization Initializing Hardware Please be patient CEmDERUIE NOTE Typical Hardware Initialization duration is between 3 to 5 minutes N5980A User Guide Getting Started Upon completion of Hardware Initialization the User Interface starts and the following window appe
26. icator turns red when errors are detected Stable errors are caused by the error add function it turns SFP SMA Error Insertion Rate off Variable and high errors may be caused by faulty connectors cables BERT connected to your device shows Stable or variable errors caused by your device Correct the problems with your device Ifthe problems are not clear then accumulate measurement data and analyze the results Sync Loss This indicator turns red when the measured BER is higher than the sync threshold of 0 1 The ED pattern does not match the incoming data pattern Patterns have lost sync The device connected to the BERT has inverted the data pattern The device has changed the data pattern Error Detector can sync only PRBS patterns Clock patterns cannot be measured by the error detector and will result in loss of synchronization 25 Reference for the User Interface Setup and Advanced Tab 26 Setup General Data Rate There are different data rates in the drop down list These rates are common to the Generator and the Error Detector The following screen lists the available Data Rates AU 3 125 00Mb s ed OL 3 155 52M b s OL 12 622 08h bs OC 48 2 488 32M b s OC 48 with FEC 2 666 00M bs FCs1 1 062 50M b s FCx 2 125 00Mbs FE 125 00Mb s GBEx1 1 250 00Mb s ADI 3 125 00hMb s Generator Data Pattern There are different patterns available for example
27. is in progress and will freeze at the end of the gating interval Gating Number of Errors SENS1 FETC ECO Syntax SENS1 FETC ECO Description Gets the number of errors that have been counted during the gating interval This value might will change while gating is in progress and will freeze at the end of the gating interval Start Gating SENS1 GATE STAT 1 Syntax SENS1 GATE STAT 1 ON Description Starts a new gating period This command will be ignored if a gating period is already in progress Abort Gating SENS1 GATE STAT 0 Syntax SENS1 GATE STAT 0 OFF Description This command aborts the currently active gating period immediately It will be ignored if the gating is not in progress 40 N5980A User Guide N5980A User Guide Programming Reference Gating Progress SENS1 GATE STAT Syntax SENS1 GATE STAT Description Requests the current state of the gating interval It will return 1 while the gating is in progress and 0 if the gating is finished inactive It is guaranteed that the very first SENS1 GATE STAT query after the start of the gating period will report a valid state of the gating progress There is no need to capture 0 1 0 transitions of the gating progress Input Selection SENS1 INP Syntax SENS1 INP SFP SMA Description Selects the input for the error detector 41 Programming Reference Sample Code The following example code shows how to control the N5980A from within a
28. ng the material 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 subcontract Software is delivered and licensed as Commercial computer software 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 Limited Rights as defined in FAR 52 227 19 c 1 2 June 1987 U S Government 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 procedure practice or the like that if not correctly performed or adhered to could result in damage to the product or loss of important data Do not proc
29. overed 1 Getting Started Inspect Shipment Connect the Instrument Install User Software for N5980A 2 Operating N5980A with the User Interface Introduction Running the BER Test Setting the Instrument Parameters Viewing the Results Reference for the User Interface 4 Programming through SCPI Introduction Common Command Summary SCPI Instrument Command List Sample Code N5980A User Guide 7 Getting Started 2 Getting Started Inspect Shipment Before you get started with the Serial BERT check if the shipment package contains the following standard deliverables Lf Apilan Reheo ogies N6989A Serres If the content is incomplete if there is mechanical damage or if the instrument does not work within its specifications notify the nearest Agilent Agilent N5980A 3 125 GB s office The Agilent office will arrange Serial BERT for repair or replacement without awaiting settlement SFP Loopback connector USB Cable Local Power Cord CD see CD content below The CD content is Autorun inf If your PC supports autorun this file starts the installation dotnetfx exe This installs the latest Microsoft Net Framework 2 0 This should be done in case Net Framework 2 0 is not already installed and internet access is not available N59S0A msi The Serial BERT installer package Setup exe If your PC doesn t support autorun execute this file to run the installation
30. r see www agilent comfenvironmentiproduct for more Information 4 N5980A User Guide Contents Contents 1 Introduction 7 2 Getting Started 8 Inspect Shipment 8 Connect the Instrument 9 Front Panel 9 Rear Panel 10 Install User Software for N5980A 11 To Install the User Software for N5980A 12 To Access N5980A 14 3 Operating N5980A with the User Interface 16 Introduction 16 Running the BER Test 17 Setting the Instrument Parameters 18 Setup 18 Advanced 19 Viewing the Results 20 4 Reference for the User Interface 21 File Menu 21 Advanced Mode 21 Store Setting 21 Store Setting As 22 Recall Setting 22 Factory Default Setting22 Instrument Default Setting 22 Exit 22 Connection Menu 22 Connect23 Info 24 Help Menu 24 Error Indicators 24 BER Bar 25 N5980A User Guide 5 Contents Error 25 Sync Loss 25 Setup and Advanced Tab26 Setup 26 Advanced 27 BER and Advanced BER Tab 28 BER 28 Advanced BER 29 5 Programming Reference 30 Introduction 30 Common Command Summary 30 Agilent N5980A Command Summary 30 SCPI Instrument Command List Reference 31 Common Commands 31 All Channels 33 SMA Output Electrical Generator 34 SFP Output Optical Generator 36 Trigger Output38 Synchronization mode 39 Sample Code 42 6 N5980A User Guide Introduction 1 Introduction This chapter introduces you to the Serial BERT User Guide and it provides information on the various chapters and topics c
31. rameter PRBS 2 7 1 PRBS7 PRBS 2 15 1 PRBS15 PRBS 2 23 1 PRBS23 PRBS 2431 1 PRBS31 Clock 2 CLK2 Clock 4 CLK4 Clock 8 CLK8 Clock 10 CLK10 Clock 16 CLK16 Clock 20 CLK20 K28 5 K28_5 N5980A User Guide Error Insertion Programming Reference The error insertion is capable to enforce a given error ratio and to add single errors into the data stream Both are available in parallel Insertion Rate Syntax Description Available Insertion Rate SOUR1 PATT EADD RATE SOUR1 PATT EADD RATE SOUR1 PATT EADD RATE NR3 Either sets or gets the error insertion rate Only the listed error rates are available If another value is specified while sending the command the error rate will be rounded to the next available value Inserted error rate Parameter None 0 le 3 le 3 1e 4 1e 4 1e 5 1e 5 1e 6 1e 6 1e 7 1e 7 1e 8 1e 8 1e 9 1e 9 Add Single Error Syntax Description Output Level Syntax Description Available Output Levels N5980A User Guide SOUR1 PATT EADD SOUR1 PATT EADD ONCE Adds a single error to the generated data stream This is available even if the cyclic error insertion is active SOUR1 VOLT SOUR1 VOLT SOUR1 VOLT ECL LVDS This either sets or gets the output level The output is always AC Specifying the output level actually changes only the amplitude of the generated electrical signal Parameter Level ECL 850mV LVDS 400mV 35 Programming
32. remote program The example code is implemented in C The code snippets show the required code that needs to be added to a user program It implements a class N5980A in the namespace N5980AExample that allows communication with the N5980A user software using System using System Collections Generic using System Text using System Net using System Net Sockets using System Windows Forms namespace TBertExample class N5980A lt summary gt Holds the input buffer when reading from the socket lt summary gt byte bufferin new byte 64 1024 lt summary gt Holds the TepClient that is used to establish the remote connection lt summary gt Tepclient m Client null lt summary gt Holds the NetworkStream that provides the communication link lt summary gt NetworkStream m Stream null lt summary gt Connect to the instrument with the given hostname and port number Both values can be retrieved by the Connection gt Info menu item in the N5980A software lt summary gt lt param name host gt Hostname of the PC that executes the N5980A software lt param gt lt param name port gt Port number of the software instance to communicate with lt param gt aad void Connect string host int port i resolve address of the given hostname IPHostEntry ipHostEntry Dns Resolve host IPAddress ipAddress
33. setting will be applied when the User Software connects to the instrument This setting is stored individually for each instrument by storing the instrument serial number in the file name Instrument Default Setting P Store Current Setting as Instrument Default Recall Instrument Default Setting Delete Instrument Default Setting Exit Exit This closes the session with N5980A Connection Menu 22 This has the following options Connect Info N5980A User Guide Reference for the User Interface Connect The Connect option shows the Connection Dialog box M59804 Connection Setup Available Devices Connect Demo Difline Exit Remote Programming Setup Port 5025 NOTE If there are no instruments connected to the PC then Connect button will be disabled If an instrument is connected the user can connect to that instrument In the Available Devices the list of connected device will appear and the Connect button will be enabled NOTE Each PC can control only one N5980A In Remote Programming Setup a port number can be selected for the remote programming interface The instrument will then be accessed via a socket that connects the PC s IP address and the chosen port number Refresh updates the list of Available Devices Selecting the connection launches the GUI as shown below Agilent N5980A File Connection Help 11 10 a p 5 R 3 2 Setup
34. the instrument s error queue N5980A User Guide Programming Reference Store current setting Syntax Description Recall setting Syntax Description All Channels Datarate Syntax Description Available Data Rates N5980A User Guide MMEM STOR STAT filename MMEM STOR STAT filename Stores the current setting into the specified file If a file with the same name already exists then this file will be overwritten MMEM LOAD STAT filename MMEM LOAD STAT filename Loads stored instrument setting from the given file FREQ FREQ FREQ FE OC3 0C12 0C48 OC48FEC FC1 FC2 GBE1 XAUI Either sets or gets the instrument s datarate The datarate always applies to all the channels electrical out optical out clock out and error detector input Name Frequency Parameter Fast Ethernet 125 00Mb s FE OC 3 155 52Mb s 0C3 OC 12 622 08Mb s 0C12 0C 48 2 48832Gb s 0C48 OC 48 with 2 666Gb s OC48FEC FEC 1x FC 1 0625Gb s FC1 2x FC 2 125Gb s FC2 Gigabit 1 25Gb s GBE1 Ethernet XAUI 3 125Gb s XAUI 33 Programming Reference SMA Output Electrical Generator The SMA output is accessed via the root node SOUR1 Pattern Syntax Description Available Patterns 34 SOUR1 PATT SOUR1 PATT SOUR1 PATT PRBS7 PRBS15 PRBS23 PRBS31 CLK2 CLK4 CLK8 CLK10 CLK16 CLK20 K28 5 Either sets or gets the pattern of the SMA output Name Pa
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