Home

TRACER 2xT1 User`s Manual

Contents

1. AR RR 31 TA Status Pape cedros oen tess ea ed eae Qa Ven e toad Vni ae iter ud es om ro ARS 31 Link Performance History Pt ap on Rd O 31 Channel A Statistics ee ea pre tae o ON d Pea o enter pa Statue 31 Channel B Statistics aed Coda soeben egy teases 32 Alarm Pa generna pue eI 32 Test ony D MI MM EI M ee 33 Configuration onn Geb b getto P DRY bark ses Ge eU RR FU 34 Remote ACCESS TT 35 Section 4 Troubleshooting Gor M eaaa Convo A a a 37 Problem Descriptions and Recommended Actions sse 37 Troubleshooting using the front panel indicators ee 37 Link Error light is lit or link is down 37 BPV light on T I A or Bis T 38 RED light on T1 A or is liti esce erred e Pri bead ve weis ads 38 TRACER 2xT1 User s Manual V 61280003L2 1A Table of Contents SLBK A or LBK B uai OR re ee PUB ev 39 AIS YEL PI A or T Dto ss iino Giada tM ree grt 39 indicator is 22 1 1 1 1 40 94 441 10400006 40 No Power e Su 40
2. ap Cete bete ads 19 Applying POW Eare eann nnee eese cia t a esent 19 Automatic BBP Frequency P Im oou oer ete lex ee RE o e er needs 19 Spreading Pi e T P 19 Co Locating Multiple 2 4 GHz Systems rtr I o raras 20 Antenna UH DO a eiit bemus Borde 20 me 20 21 iv TRACER 2xT1 User s Manual 61280003L2 1A Table of Contents Alarm Contacts e E Reit E EE E EE 21 Section 3 Operation L E 23 R5 222 Int tidee eia reticere qe RR eas Ee AR RR EA Se 23 Modem ConfectlODsus a SUE Ra YE Ret ced ES pant yard vans xi eas Wai sal OR tv 23 Telemetry Byte Oriented Serial Interface uds eene ey digs resi bet e re dpi end 23 System cmap rhone Ces enel epa 28 Cable Comme ci ois 28 DEAS SW occas Scrat Mines 28 Main Menu Selections a Ces 29 System Status Page Caco caper Sas arx Pe Ry 29 Maiti Menu Page uu
3. 2 SEIS isa TOP 3 Forward Error COFtectloti i en e ic Part n ine e Reo Reis RUE vul 3 Soca soca ste ties pets sits a codes Li uote 3 locuin RA EN 3 E 4 1 eco nas ERN lo a 4 Lane Buvdout ob EBO 4 TRACER System Configuration iode etes ee open eels egeo e RR deed di 4 Baseband Processor or BBP oieee aet tort tbe tbe Fax Re rr aite eda d 4 DSI DSX I Interface uo red d tO ato Y ne eva Gee RO Ps FU s 5 ALESTOD RS 232 Interface eos Tiea ae EEA EAE 6 Alari COMA CES ica esee ieee beg 6 JF Signal 6 PO WEL a a 6 Controls and Int leatObsss eese 6 Non Volat Memory ode nor ee eee ecient ia a e art E Laveen 8 Built M uu 8 Radio Frequency Convertor RFC a soie tno Rae 8 10 TRACER 2xT1 User s Manual iii 61280003L2 1A Table of Contents Section 2 Installation Radio F
4. 40 MHz two channels rU EE 140 MHz ne Tx 2 422 GHz Rx 2 462 GHz ducat a es Tx 2 462 GHz Rx 2 422 GHz NIE EN tects Direct sequence Hee tebe t eere tege d evt 120 bits EE AES Se A DN ER RJ 48C bantam ree AMI B8ZS Front Panel Alarm LEDs Configuration Switches Monitor Jacks Diagnostics 2 2 1 T1 Loopback Remote Test with built in BERT Test Points oriens RSSI System Voltages QPSK Constellation VT 100 Terminal Menu Driven User Interface Control of the Remote End Password Protected Optional Event History TRACER 2xT1 User s Manual 47 61280003L2 1A Section 5 Specifications VT 100 Terminal Interface Rate d e 9600 bps Bits ene t tenet A tits 8 i o etienne t None SLOP Mp E E MEM M 1 Terminal Emulation iere ae E aie VT 100 Mechanical amp Environmental Baseband Processor Power Operating 25 C to 65 C SIZQ 1 ipt ue p etti meii p E ppt tre inven 19 x 1 75 x 11 5 Humidity ioa RP er Os 95 Non condensing Weight ettet ad hehe e 6 Ibs Rack RFC Operating sese 40 C to 65 C SIZE eel Were dete 19 x 1 75 x 11 5 Humudity ne Se ee Rettore 95
5. 48 Mechanical amp Environmental aene ec end ett eae E 48 ecd IQ E a ieee aes CM LM LA ce 48 vi TRACER 2xT1 User s Manual 61280003L2 1A Table of Contents Section 6 Warranty Ordering and Return Information cea Cla ani RR 49 Sales E 49 Repairs poscat dera ec E co eae Ee Doce E asta te ce n as 49 Technical SHDDOELU c al se er na ved diui tag o ut OR 49 Glossary Acronyms Used in This Manual eco ent t et t etes ei a et Papua eMe E e ERR V dU e aite 5 Appendix Cable Connections Terminal Connection DEBA aos le 1 Personal Computer Connection 9 e ea Rcs colas 1 Modem Connection ade ele deo tera vee wads eee edt A 2 TRACER 2xT1 User s Manual vii 61280003L2 1A Table of Contents Illustrations 1 1 Typical Application UA uU duse 2 1 2 Bandwidth 3 1 3 BBP i E M A 4 1 4 apu Me 5 1 5 BBP Block oed onec petet tni oh Maas e 5 1 6 BBP Front Panel with door 1 qe Coe oe
6. TRACER 2xT1 User s Manual 35 61280003L2 1A Section 3 Operation 36 TRACER 2xT1 User s Manual Secrion 4 TROUBLESHOOTING GENERAL If you experience a problem with the TRACER system check to ensure that all connectors coaxial cables antennae and T1s are all properly connected and that the system configuration ensures proper transmit and receive levels for the RF equipment Then if the problem persists follow the actions recommended in this section For further assistance call ADTRAN Technical Support at 800 726 8663 NOTE Each TRACER is completely system tested and all specifications verified prior to shipment Most problems on a new link tend to have installation related solutions PROBLEM DESCRIPTIONS AND RECOMMENDED ACTIONS Each problem described below is followed by a list of Possible Causes each of which is followed by a number or numbers corresponding to a Recommended Action or Actions IMPORTANT If problems persist after you have followed the Recommended Actions contact ADTRAN Technical Support at 800 726 8663 Troubleshooting using the front panel indicators Link Error light is lit or Link is Down This alarm will activate when the RF link is not operational Recommended Action Possible Cause see list below The RP ets ashi 1 10 RX power is below the 91 dbm threshold 1 4 7 10
7. far end transmitter is off or is transmitting low power 1 4 7 10 The RF path is not aligned eet detti 1 2 10 e Water is in the antenna feedhorn or connectors 1 4 e Both units are set to the same frequency 5 10 e Both units are not set to the same PN code 6 e The connection between the BBP and the RFC is faulty 1 7 10 e connection between the RFC and the antenna is faulty 1 7 10 The BBP or is faulty eae eed 10 TRACER 2xT1 User s Manual 37 61280003L2 1A Section 4 Troubleshooting IMPORTANT If problems persist after you have followed the Recommended Actions contact ADTRAN Technical Support at 800 726 8663 Recommended Actions 1 2 3 Check the RX power using VT 100 user interface or RSSI voltage Check the far end transmitter for operation and proper transmit power Check the RF path using a spectrum analyzer or RSSI voltages for proper alignment Have path professionally re aligned and check system path engineering Check the antenna feedhorn and all outdoor connections for water Change the frequency of one radio through the VT 100 user interface or front panel button Set both units to the same PN code Check all connections between the BBP the RFC and the antenna Check the IF and RF cables for shorts Check the connections inside the mastmount or rackmount RFC
8. 1 nan ESF coded a BPV CRC error has 1 Recommended Actions 1 Check the T1 signal with a BERT test set to determine origin of error SES Values in History Menu This value indicates the number of Severely Errored Seconds in the T1 data stream Recommended Action Possible Cause see list below In an AMI coded T1 1544 BPVs or 8 frame bit errors have occurred 1 In an ESF coded 1544 BPVs 320 CRC errors have occurred 1 Recommended Action 1 Check the T1 signal with a BERT test set to determine origin of error 46 TRACER 2xT1 User s Manual Section 5 SPECIFICATIONS This section lists the specifications for the TRACER system Transmitter Output Frequency Range Channel Bandwidth iced Receiver Receive Level range Receive Level maximum Receive Level nominal Spread Spectrum Data Pump Spreading Method Code Length Processing Gain Number of Codes Chipping Interface Specifications Capacity 3 Igiene Connection Line C de User Interface Cc 20 dBm maximum 2400 to 2483 5 MHz
9. 10 Replace the RFC BPV light on T1 A or B is lit This alarm will activate when the incoming T1 stream presents BPVs Recommended Action Possible Cause see list below e The incoming contains BPVs or errors 1 The line codes between DSI DSX 1 equipment and TRACER are imcompatible iet ette teen de 2 Recommended Actions 1 2 Check the incoming DS1 DSX 1 signal for BPVs using a 1 test set Correct the line code on the TRACER or DSI DSX 1 equipment RED light on T1 A or B is lit This alarm Loss of Signal will activate when there is no signal present at the T1 interface Recommended Action Possible Cause see list below No DS1 DSX 1 signal or a degraded DS1 DSX 1 signal is present at the DST DS X 1 Input terret eter cete eret 12 The connection at the input or DS1 DSX 1 equipment is faulty 2 38 TRACER 2xT1 User s Manual 61280003L2 1A Section 4 Troubleshooting IMPORTANT If problems persist after you have followed the Recommended Actions contact ADTRAN Technical Support at 800 726 8663 Recommended Actions 1 Verify the presence of a DSI DSX 1 signal at the monitor jack using a test set 2 Verify that all cables and connectors are correctly wired or LBK B is lit This alarm will activate when a software or manual T1 loopback has been established Recommended Action Possible Cause see list
10. Test light is lit or oe pee 41 TST light is lit after pressing Remote Test button 41 Fail light is lit after pressing Remote Test button 42 SRESLOW Phi TS OD estes a Wags Cog nei EUN n Rift 42 Troubleshooting Using the VT 100 User Interface 43 RED Lade en tii eee odes 43 IAE 43 YELAISA 44 RF Link Alarm or Code Sync Alarm 44 Carrier Sync Alarm or Mux Framer 45 ES Values in T1 Status Menu iss eet sepe 46 SES Values in History eee en pou iae eoe ouis 46 Section 5 Specifications Transmitter tides usd ita Ee catio ent 47 up D T T ERN 47 Prequency toit ee NI lo baa besa qux QUY eC aT beasts 47 Spread Spectrum Dat eie ore ved e Ras D vn on Rd ul aera 47 Interface dr e ter Gage he Lien n Meee 57 User Interface souder itur Dn ded etna ted Rr ai ee 47 VI 100 Terminal tetfaee tense er ee EEES rv emt
11. Table 3 3 Alarm Status and Command Overview Frequency Plan 10 Second BERT Test Local T1A Line Loopback Local T1B Line Loopback Local T1A Link Loopback Local T1B Link Loopback Remote T1A Link Loopback Remote T1B Link Loopback RFC Link Fail converter is down Code Sync Fail Carrier Sync Fail T1 Mux Sync Fail Link Error Remote RF Link Down RF Low Remote Test Fail TIA BPV TIA Red Alarm TIA Yellow Alarm TIA AIS Blue Alarm TIA Transmit AIS TIB BPV Red Alarm TIB Yellow Alarm T1B AIS Blue Alarm Transmit AIS 2422 MHz TX 2462 MHz RX B 2462 MHz TX 2422 MHz Rx Remote end sends BERT pattern for 10 seconds Loops local T1A interface towards local CPE Loops local T1B interface towards local CPE Loops local T1A interface towards remote CPE over the RF link Loops local T1B interface towards remote CPE over the RF link Loops remote T1A interface towards local CPE over the RF link Loops remote T1B interface towards local CPE over the RF link Active if the command link between the baseband processor and the RF Active if the link fails to achieve code sync Active if the link fails to achieve carrier sync Active if the T1C Mux fails to achieve sync Active if the remote Tracer unit is not receiving data Active if receive power is below 80 dBm Active if the 10 second BERT has failed over the RF link to the far end Active when the T1A incoming data stream presents bipolar violations Act
12. AIS YEL indicator is flashing This alarm is activated when the T1 interface at the remote end is not receiving a T1 signal it is in Red alarm In this circumstance the interface with the flashing AIS YEL indicator is transmitting an AIS keep alive signal Recommended Action Possible Cause see list below e NoDSI DSX 1 signal or a degraded DS1 DSX 1 signal is present at the DSI DSX 1 input neige teach e E etica 1 2 e The connection at the input or DS1 DSX 1 equipment is faulty 2 Recommended Actions 1 Verify the presence of a DSI DSX 1 signal at the monitor jack using a test set 2 Verify that all cables and connectors are properly wired No Power Light Recommended Action Possible Cause see list below e DC voltage is not applied 1 2 4 e The polarity of the power connection is reversed 2 e The AC transformer is not functioning properly eese 3 4 e AC transformer is not connected to the DC jack on the BBP or not connected to 3 4 Recommended Actions 1 Verify that the DC voltage is between 21 60 VDC 2 Verify that negative voltage is applied to the negative terminal and positive voltage applied to the positive terminal 3 Verify that the Power light is lit on the AC transformer Verify that the AC transformer is connected to an AC power cord on the transformer and conne
13. Non condensing Weighted 6 Ibs Mast Unit Operating Temperature 40 C to 65 C attic ig ree 21 high x 9 diameter nto ien qnte tet eoe 10096 Weight acte dee eie aee 18 Ibs Input Voltage 2 to 60 volts DC either polarity referenced to ground Power Consumption eicere tente suse a EE eere eren 30 watts Connector 3 pin DIN AC adapter 3 pin screw clamp terminal block DC 48 TRACER 2xT1 User s Manual Secton6 WARRANTY ORDERING AND RETURN WARRANTY ADTRAN will replace or repair this product within five years from the date of shipment if it does not meet its published specifications or fails due to defects in materials and workmanship For detailed warranty repair and return information refer to the ADTRAN Equipment Warranty Repair and Return Policy and Procedure located on the ADTRAN web site at http www adtran com SALES For TRACER sales information contact Adtran Sales at 888 3ADTRAN or http www adtran com wireless TECHNICAL SUPPORT Standard support hours are 7 a m to 7 p m CST Monday through Friday Emergency technical support is available 24 hours a day seven days a week For technical support at any time contact ADTRAN at 800 726 8663 REPAIRS AND RETURNS Return Material Authorization RMA is required prior to returning equipment to ADTRAN For RMA information contact ADTRAN at 800 726 8663 or ADTRAN In
14. 3 Check the RX power using VT 100 user interface RSSI voltage Check the far end transmitter for operation and proper transmit power Check the RF path using a spectrum analyzer or RSSI voltages for proper alignment Have path professionally re aligned and check system path engineering Check the antenna feedhorn and all outdoor connections for water Change the frequency of one radio through the VT 100 user interface or front panel button Set both units to the same PN code Check all connections between the BBP the RFC and the antenna Check the IF and RF cables for shorts Check connections inside the mastmount or rackmount RFC 10 Replace the RFC Carrier Sync Alarm or T1 Mux Framer Alarm The Carrier Sync alarm will activate when frequency synchronization has not been achieved between the RF link The 1 Mux Framer alarm will activate when synchronization between the 1 mux on each radio has not been achieved Recommended Action Possible Cause see list below The RE 1 10 RX power is below the 91 dbm threshold 1 4 7 10 far end transmitter is off or is transmitting low power 1 4 7 10 The RF path is not aligned 1 3 10 e Water is in the antenna feedhorn or connectors 1 4 e Both units are set to the same
15. Impedance 500 10 TRACER 2xT1 User s Manual Secrion2 INSTALLATION RADIO FREQUENCY INTERFERENCE STATEMENT This equipment has been tested and found to comply with the limits for an intentional radiator pursuant to Part 15 Subpart C of the FCC Rules This equipment generates uses and can radiate radio frequency energy If not installed and used in accordance with the instructions it may cause interference to radio communications The limits are designed to provide reasonable protection against such interference in a residential situation However there is no guarantee that interference will not occur in a particular installation If this equipment does cause interference to radio or television reception which can be determined by turning the equipment on and off the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna of the affected radio or television e Increase the separation between the equipment and the affected receiver e Connect the equipment and the affected receiver to power outlets on separate circuits e Consult the dealer or an experienced radio TV technician for help WARNING Changes or modifications not expressly approved by ADTRAN could void the user s authority to operate the equipment SHIELDED CABLES A shielded type power cord is required in order to meet FCC emission limit
16. ROSS 80 RGB air 20 RG8 foam 9 Waveguide i poe 5 91 Waveguide 1253 bosses 5 76 Waveguide 0 81 sheen re tint 3 83 7 Waveguide cte 2 2 1 Waveguide 0 333 1 62 1 Waveguide O27 mE 1 41 Antenna Gain Best performance will result from the use of a parabolic dish antenna Antenna gain is determined by the size of the dish with typical figures detailed below Dish manufacturers will be able to supply gains for other types of antenna Dish Diameter Gain in feet in dBi 2 21 4 27 6 31 8 33 10 35 12 37 TRACER 2xT1 User s Manual 15 61280003L2 1A Section 2 Installation Path Loss The free space path loss is given by Loss dB 96 6 20 log f 20log D where D is distance in miles fis operating frequency in GHz A tabulation of various path loss is given below Link Distance Path Loss Link Distance Path Loss in miles in miles Path Availability The availability of a path can be expressed by availability 1 Cx Tx 2 5 x 10 x f x D x 10 F x 100 where C is the climate factor T is the terrain factor fis the frequency in GHz D is the path length in miles F is the fade margin in dB Climate factors are given below Climate Climate Factor Very Dry Temperate
17. The diplexer may be identified by following the antenna connector to the middle connector of the diplexer Leave the cables in the same positions 3 Remove the two screws securing the diplexer and rotate the diplexer to reveal the opposite frequency plan label Reinstall the two screws and reattach the cables in the same positions 5 Reinstall the lid of the mast RFC CONNECTING THE BBP AND THE RFC The BBP and the RFC are connected by an IF cable either supplied by ADTRAN for rackmount assembly or by the customer for mastmount assembly This single connection provides everything the RFC requires The cable assembly attaches to ports labeled on the BBP and the RFC APPLYING POWER If the ADTRAN supplied tabletop power source is used simply plug it into the circular receptacle located in the DC Power area on the rear of the BBP If a source of 21 60 volts DC 30 watts either polarity referenced to ground is available it may be attached to the terminal block located on the rear of the BBP The positive lead should be attached to the side of the block and the negative lead should be attached to the side of the block CAUTION Power sources must not be attached to both the circular connector and the terminal blocks at the same time or damage will occur AUTOMATIC BBP FREQUENCY PLAN Upon the initial application of power the BBP will default to the factory preset Frequency Plan or
18. error conditions on any of the T1 interfaces are reported by the and or labels becoming highlighted in reverse video If the error is on the local TRACER the T1 status menu can be accessed for complete alarm information If the error is on the remote unit remote access can be utilized via another menu option to check the status of the T1 interfaces at the remote end f Current System Status Elapsed Time 00 01 09 Adtran Technical Support 800 726 8663 icm 1 gt gt gt gt gt gt 2 gt gt gt gt gt gt gt N T1A 1 1 1 1 N RF DOWN Local Tracer Remote Tracer Freq Plan A Freq Plan Tx Pwr Rx Pwr Tx Pwr Rx Pwr Max X E 1 Nominal Max Nominal X 21 21 X E 1 Site ADTRAN X L1 X CJ RFC Link Up Yes 1 1 X CJ Code Sync No 1 1 X L1 Carrier Sync No 7 7 X L1 T1 Mux Sync No X CJ Chipping Code 0 1 1 X Ed 1 21 Min X 1 Min Min Min Aa Main menu e Figure 3 2 System Status Page CABLE CONNECTIONS The cable connections required for various configurations are detailed in Appendix A of this manual PASSWORD TRACER provides optional password protection of the terminal interface If enabled a password prompt is presented at power up r
19. 2400 MHz 2441 MHz 2483 5 MHz Figure 1 2 Bandwidth Division The transmitter at one end TxA of a link will transmit in the lower half of the spectrum Consequently the receiver at the other end will receive in the lower half of the band and transmit in the upper half Thus a system will operate in one of two frequency plans transmit in the upper and receive in the lower or vice versa These two plans are called Plan A and Plan B One end of a path will be on Plan A and the other will be on Plan B Shipment of a link will consist of an A and a B unless otherwise specified FORWARD ERROR CORRECTION With the addition of overhead data error detection and correction capability can be added to a data stream Error correction can be accomplished by allowing the receiver to request the re transmission of an errored block once detected The TRACER on the other hand implements forward error correction FEC which adds enough overhead data for the receiver to detect and correct errors in the data stream This capability comes at the cost of bandwidth The addition of FEC decreases the required signal to noise S N ratio by approximately 5 5 dB to achieve a given bit error rate BER T1 Operation Framing The data in a T1 stream is delimited by framing bits The pattern of the framing bits follows one of two formats extended superframe ESF or superframe SF The T1 interface must be prepared for the format that will be used TRA
20. Code Sync Yes X X X X Carrier Sync Yes X X X T1 Mux Sync Yes X x x x Chipping Code X X X X X X Min X X Min Min X X Min Figure 3 3 System Status Page The upper portion of the screen indicates how long the system has been running since the last reset operation The T1A and T1B labels will be highlighted if any error conditions exist on that T1 interface The status of the radio link is indicated as Up or Down The left portion of the screen reports the status of the local system the system to which the terminal is attached the right portion reports the status of the remote system The approximate transmitter and receiver signal levels are shown via the fuel gauges If the link is down and remote end data is unavailable the fuel gauges will show instead of x The Code Sync Carrier Sync and 1 Mux Sync will all be yes for an operational link Chipping code indicates the code to which the system is set At any point in the VT 100 menu structure pressing the Escape key will bring the operator back to this screen TRACER 2xT1 User s Manual 29 61280003L2 1A Section 3 Operation Main Menu Page Pressing on any screen will take the user to the Main Menu from which the subsequent screens can be accessed f TRACER Main Menu Rev A 12 13 99 16 04 00 Site Adtran 1 T1 Status Page 2 Link Performance History 3 T1A Per
21. Remote Test button or the VT 100 user interface 1 Recommended Actions 1 Allow the remote test to complete If the Remote Test Fail light does not activate the remote test passed If the Remote Test Fail light activates see section on FAIL light is lit after pressing Remote Test button TRACER 2xT1 User s Manual 41 61280003L2 1A Section 4 Troubleshooting IMPORTANT If problems persist after you have followed the Recommended Actions contact ADTRAN Technical Support at 800 726 8663 Fail light is lit after pressing Remote Test button The Remote Fail light will activate after a Remote Test has failed Recommended Action Possible Cause see list below 10 second BERT has failed over the RF link to the far end 1 e The RX power may be below or near the 91 dbm threshold 1 Recommended Actions 1 Check the RX power level using the VT 100 user interface or the RSSI DC voltage test points Verify the RX power is between 55 and 91 dbm RF Low light is on This alarm will activate if the RX power is below 80 dbm Recommended Action Possible Cause see list below e The RX power is below 80 dBm eee 1 5 7 8 e The far end transmitter is off or is transmitting low power 2 5 7 8 The RF path is not aligned 3 8 e Water is in the antenna feedhorn or connectors 4 8 Recommended Actions 1 Verify
22. be located in a manner that allows exposure of the general population to the direct beam path of the antenna at a distance less than one meter Installation on towers masts or rooftops not accessible to the general population is recommended or Mount the antenna in a manner that prevents any personnel from entering the area within one meter from the front of the antenna During antenna installation be sure that power to the TRACER equipment is turned off in order to prevent any energy presence on the coaxial connector During installation and alignment of the antenna do not stand in front of the antenna assembly During installation and alignment of the antenna do not handle or touch the front of the antenna These simple precautions must be taken to prevent general population and installation personnel from exposure to RF energy in excess of specified MPE levels TRACER 2xT1 User s Manual 61280003L2 1A Table of Contents Page Section 1 TRACER Description 1 ISM Band Spread Spectrum nes mnr i 1 Sash ve 1 octo wedge a ini leet pons ege epo desta 2 Spread Spectrum ou acetone td yc Geist iva ad c uti ad med 2 Jae dissi MT rM 2 e uA
23. equipment is faulty 2 Recommended Actions 1 Verify the presence of a DSI DSX 1 signal at the monitor jack using a test set 2 Verify that all cables and connectors are correctly wired BPV Alarm The BPV alarm will activate whenever the incoming T1 stream presents BPVs Recommended Action Possible Cause see list below e The incoming contains BPVS or errors 1 e line codes between the DSI DSX 1 equipment and the TRACER are incompatible 2 Recommended Actions 1 Check the incoming DS1 DSX 1 signal for BPVs using a test set 2 Correct the line code on the TRACER or DS1 DSX 1 equipment TRACER 2xT1 User s Manual 43 61280003L2 1A Section 4 Troubleshooting IMPORTANT If problems persist after you have followed the Recommended Actions contact ADTRAN Technical Support at 800 726 8663 YEL AIS Alarm This alarm indicator will flash when a T1 Yellow alarm occurs The indicator will remain on solid to indicator an AIS alarm when the DSI DSX 1 is receiving a blue code a string of 2316 1 s with no more than 1 zero Recommended Action Possible Cause see list below The DSI DSX 1 equipment is sending a blue code all 1 s to the uni enema e eerta catia 1 2 e far end equipment is in a red condition and transmitting a yellow alarm 3 5 Recommended Actions Reset the upstream equ
24. to the Frequency Plan determined by the cable configuration of the RFC The LED will indicate which frequency plan is active On subsequent reboots such as after a loss of power the BBP will default to the most recently used Plan setting SPREADING CODE The spreading code for each end must be the same The choice of operating code is selectable by the operator or the installer TRACER is shipped in a matched default configuration WARNING It is possible for the spreading code to be changed remotely through the VT 100 interface from the other end of the link When this is performed communications will be lost to the far end The spreading code will change to code 0 and communications will be lost as soon as this change is made If this happens set the Spreading Code on the local unit to code 0 The units should regain communications as soon as the correct code is selected TRACER 2xT1 User s Manual 19 61280003L2 1A Section 2 Installation CO LOCATING MULTIPLE 2 4 GHz SYSTEMS When multiple 2 4 GHz transmitters are to be co located installed in the same equipment room or on the same tower it is advised to set all systems as follows 1 If more than one 2 4 GHz system is transmitting from the same location set the antenna polarity of one system horizontal and the other system s vertical The antennas should be marked as to which mounting position is vertical or horizontal This will provide approximately 3
25. 0 dB of isolation between the different antennas 2 If more than one TRACER system is installed set the co located transmitters to the same frequency plan example Plan A Tx 2422 or Plan B Tx 2462 and set each to a different spreading code This keeps the transmitters on the additional system s from interfering with the co located receiver s 3 If the systems are from different manufacturers set the transmit frequencies as close as possible with different spreading codes Other manufacturers may not use the exact frequency plans as the TRACER system but keeping the frequencies close will reduce the probability of the transmitter s interfering with the co located receiver s This equipment is authorized under CFR 47 Part 15 247 With this authorization by the FCC this equipment shall not be co located with a similar transmitter that transmits identical information ANTENNA ALIGNMENT After the transmitter power for each end has been adjusted and the BBP and RFC have been installed and connected the antenna should be connected to the RFC via the feedline Verify that both antennas are arranged on the same polarity vertical or horizontal The antennas should be aimed toward one another as precisely as possible and the received signal strength indicator RSSI voltage measured The RSSI voltage is a function of the signal strength at the receiver and is used to measure the received signal strength RSSI varies approximately from 0 to 4 vol
26. 5 10 e Both units are not set to the same PN code 6 The connection between the BBP and the RFC is faulty 1 7 10 The connection between the RFC and the antenna is faulty 1 7 10 Th BBP or REC is faulty onde e detur 10 TRACER 2xT1 User s Manual 45 61280003L2 1A Section 4 Troubleshooting IMPORTANT If problems persist after you have followed the Recommended Actions contact ADTRAN Technical Support at 800 726 8663 Recommended Actions 1 2 3 Check the RX power using VT 100 user interface RSSI voltage Check the far end transmitter for operation and proper transmit power Check the RF path using a spectrum analyzer or RSSI voltages for proper alignment Have path professionally re aligned and check system path engineering Check the antenna feedhorn and all outdoor connections for water Change the frequency of one radio through the VT 100 user interface or front panel button Set both units to the same PN code Check all connections between the BBP the RFC and the antenna Check the IF and RF cables for shorts Check connections inside the mastmount or rackmount RFC 10 Replace the RFC ES Values in T1 Status Menu This value indicates the number of Errored Seconds in the T1 data stream Recommended Action Possible Cause see list below nan AMI coded or frame bit error has occurred
27. ACER DESCRIPTION The TRACER provides dual T1 transport by way of a spread spectrum microwave link for distances up to 30 miles or more depending on path engineering System performance is determined in part by the engineering of the microwave link Each end of a TRACER link is composed of two units the baseband processor BBP and the radio frequency converter RFC Two DS1 DSX 1 T1 interfaces are provided on the rear of the BBP which can be mounted in a 19 inch rack The DS1 DSX 1 interface provides connections up to 6000 feet from T1 equipment A single coaxial cable connects the BBP to the RFC and another connects the RFC to the antenna ISM BAND SPREAD SPECTRUM The Federal Communications Commission FCC has established several portions of the radio frequency RF spectrum for use in Industrial Scientific and Medical ISM applications Part 15 247 of the FCC rules describes the requirements of systems that operate in these bands The three bands set aside 902 928 MHz 2400 2483 5 MHz and 5725 5850 MHz are designated for use by spread spectrum transmitters either frequency hopping or direct sequence The TRACER operates in the 2400 to 2483 5 MHz band using direct sequence spread spectrum DSSS transmission NEBS Network Equipment Building Standards NEBS defines a rigid and extensive set of performance quality environmental and safety requirements developed by Telcordia the R amp D and standards organization owned by the sev
28. ADRAN TRACER 2xT1 User s Manual TRACER 2xT1 User s Manual 61280 003L2 1A 61280 003L2 1A TRACER 2xT1 User s Manual RADIO FREQUENCY INTERFACE STATEMENT This equipment has been tested and found to comply with the limits for an intentional radiator pursuant to Part 15 Subpart C of the FCC Rules This equipment generates uses and can radiate radio frequency energy If not installed and used in accordance with the instructions it may cause interference to radio communications The limits are designed to provide reasonable protection against such interference in a residential situation However there is no guarantee that interference will not occur in a particular installation If this equipment does cause interference to radio or television reception which can be determined by turning the equipment on and off the user is encouraged to try to correct the interference by one or more of the following measures e or relocate the receiving antenna of the affected radio or television Increase the separation between the equipment and the affected receiver e Connect the equipment and the affected receiver to power outlets on separate circuits e Consult the dealer or an experienced radio TV technician for help WARNING Changes or modifications not expressly approved by ADTRAN could void the user s authority to operate the equipment Shielded Cables A shielded type power cord is required in order to meet F
29. C key will present the System Status screen If password access has been enabled then press Enter or Return in order to see the Enter Password message TRACER is shipped with password protection disabled RS 232 INTERFACE The TRACER has an RS 232 interface for system management via an attached VT 100 terminal personal computer or modem The RS 232 port is configured as a DCE with the following pin assignments Signal Pin Name Number Direction TXD 2 To TRACER RXD 3 From TRACER RTS 4 To TRACER CTS 5 From TRACER DSR 6 From TRACER Ground 7 DCD 8 To TRACER DTR 20 To TRACER MODEM CONNECTION Option 16 discussed in the Configuration Menu page of this section will enable or disable modem control When this option is enabled from a standard terminal connection all RS 232 communications will cease until a modem is attached with a Null Modem adapter between the TRACER and data modem The data modem will need to be configured for AUTO ANSWER and 9600 BPS When the user connects via modem to the TRACER unit communications via the RS 232 port will resume If a user accidentally enables modem control from a terminal and disrupts the RS 232 communication pressing CTRL Z three times will temporarily disable the modem control option This will allow the user to access the configuration menu to disable modem control When modem control is enabled the RS 232 port is inactive until DTR and DCD are active This prohibits da
30. CC emission limits and also to prevent interference with nearby radio and television reception when using the AC voltage adapter It is essential that only the Adtran provided power cord be used FCC Output Power Restrictions The FCC does not require licensing to implement this device However the FCC has established restrictions regarding maximum output power and the adjustments required when employing directional gain antennas Refer to Setting the Transmitter Power in Section 2 of this manual These restrictions are detailed in FCC Part 15 247 b 1 3 1 and 3 ii1 It is the responsibility of the individuals designing and implementing the radio system to assure compliance with these and any other pertinent FCC Rules and Regulations This device must be professionally installed Exposure to Radio Frequency Fields This device is designed to provide a maximum power output of 100 mW This level of RF energy in itself is below the Maximum Permissible Exposure MPE levels specified in FCC OET 65 97 01 The installation of high gain antenna equipment in the system configuration may create the opportunity for exposure to levels higher than recommended for the general population at a distance less than one meter from the center of the antenna The following precautions must be taken during installation of this equipment TRACER 2xT1 User s Manual 61280003L2 1A Radio Frequency Interference Statement The installed antenna must not
31. CER 2xT1 User s Manual 3 61280003L2 1A Section 1 TRACER Description Line Code A mark in the data stream is coded as a pulse on the 1 line A space is coded as no activity on the T1 line As a form of error detection subsequent marks in the data stream are coded as pulses of alternating polarity either positive going or negative going This type of line coding is called alternate mark inversion AMI For T1 receiver to operate correctly a minimum number of 1s must exist on the T1 facility If the data cannot be guaranteed to meet this requirement then another line coding format is used In the bipolar 8 zero substitution B8ZS scheme a string of eight Os is replaced by a special sequence of eight bits that contains a bipolar violation The receiver upon recognizing this sequence reinserts the eight Os and the data is recovered intact DS1 DSX 1 Interface When connecting the interface to the public switched network an ADTRAN provided cross over cable part number 3125M011 is required to meet FCC part 68 and IC CS03 requirements This cable is required to cross over the Tx and Rx pairs to meet the connecting arrangement of a network interface device This cable is included with the BBP and is labelled T1 Crossover Line Buildout or LBO The DS1 DSX 1 interface provides two different types of line buildouts LBOs respectively When set for DS1 LBOs for 0 dB 7 5 dB 15 dB and 22 dB are a
32. Gere PUER 6 1 7 BBP Front Panel with door open 7 1 8 Module hu seuss alten abn Ro vs Pd XM Gan ve eu on eae 9 1 9 RFC Function Block Diagram 9 l 10 Mastmonnt RFC HOUSE iles ope 10 l 11 Rackmount RFC House oq eo Eee npe t e 10 2 1 Dac qe P 18 3 1 Connectors cuu e a oe etc m 24 3 2 System Stats een 28 3 3 System Status Pase egeta a bees ON a UN d 29 3 4 Menu Page ns e ern Ep elu DO o ce E A 30 3 5 cM 30 3 6 Link Performance History aede vetet e o a as e TON Ad ds 31 3 7 Channel A Statistics PAGS s o OR Reano B Ar tens 31 3 8 Channel Statistics Page uu a ich d revive aq vr vi ni MES 31 3 9 Alarm Page 32 EL EU duisi mr EX 33 3 11 1 Loopback LOCAblOons teca eigo eran nive ndis 23 3 I2 Configuration toe be Rt bote b e a E RU phe a a 34 2535 Current System Stats Edna trig ORE MERE 35 viii TRACER 2xT1 User s Manual INTRODUCTION 1 TR
33. Humid 16 TRACER 2xT1 User s Manual 61280003L2 1A Section 2 Installation Terrain factors are listed below Terrain Terrain Factor SIBDOOLD rrr ore Rede 4 uu eter dete RETE 1 1 The nominal received signal level is 60 dBm For help in link planning use the path loss calculation worksheet below SOT AIBN serpen dese Sonnet tme Minimum Signal Power F l l AGING O TENIS Transmitter Feedline Loss cR LR End Transmitter Antenna Gain a ee Biases eite tte Path Loss Sy cag Hn endi Receiver Antenna Gain qo dipendenti caesa eee Receiver Feedline Loss E e Required Fade Margin SF cemere ete dBm Transmitter Power Setting SETTING THE TRANSMITTER POWER The FCC specifies the maximum transmitter power that may be used for antennae of a given gain FCC rules Part 15 Subpart 247 allow for a maximum power of watt into antennae of a gain less than or equal to 6 dBi For every 3 dB of gain over 6 dBi the transmitter must be reduced by 1 dB The following table lists the maximum transmitter power for given antennae gains Antenna Gain Power dBi 30 dBm I2 dBYs cocco ert 28 dBm 189 1 nme 26 dBm 24 uino utt 24 dBm 30 tee a eee 22 dBm 36 dB n e 20 dBm TRACER s maximum power output The transmitter power is set by way of a potentiometer on the f
34. a port on the rear of the RFC This connection terminates at the diplexer illustrated in the Figure 2 1 Figure 2 1 Diplexer Unscrew the cable assemblies from the ports labelled Tx and Rx on the RFC and the ports labelled 2422 and 2462 or J1 and J2 on some models on the diplexer depending on the frequency Plan Plan A or Plan B Unscrew the cable assembly from the port labelled Antenna on the diplexer Remove the four screws from the bottom of the RFC that hold the diplexer in place Turn the diplexer over revealing the opposite frequency plan from Plan A to Plan B or vice versa Realign the diplexer with the screw holes and replace the four screws that attach it to the bottom of the RFC Reattach the loose cable assembly from step 4 to the port labelled Antenna on the diplexer Reattach the cable assemblies from ports labelled Tx and on the RFC and the ports labelled 2422 and 2462 or J1 and J2 on some models on the diplexer Cable connections should be aligned to each other as follows Plan A Tx 2422 Rx 2462 Plan B Tx 2462 Rx 2422 10 Replace and secure the RFC cover TRACER 2xT1 User s Manual 61280003L2 1A Section 2 Installation For mastmounted systems do the following to reconfigure the RFC interconnect 1 Remove the lid of the mast RFC 2 Disconnect the three cables attached to the diplexer
35. allows exposure of the general population to the direct beam path of the antenna at a distance less than one meter Installation on towers masts or rooftops not accessible to the general population is recommended or Mount the antenna in a manner that prevents any personnel from entering the area within one meter from the front of the antenna During antenna installation be sure that power to the TRACER equipment is turned off in order to prevent any energy presence on the coaxial connector During installation and alignment of the antenna do not stand in front of the antenna assembly During installation and alignment of the antenna do not handle or touch the front of the antenna These simple precautions must be taken to prevent general population and installation personnel from exposure to RF energy in excess of specified MPE levels UNPACK INSPECT Carefully inspect the TRACER for any shipping damages If damage is suspected file a claim immediately with the carrier then contact ADTRAN Customer Service If possible keep the original shipping container for use in shipping the TRACER back for repair or for verification of damage during shipment Before beginning installation verify that all of the following components are present Rackmounted RFC configuration Provided by ADTRAN Baseband processor Rackmounted RFC BBP to RFC IF interconnect cable e DS1 DSX 1 interface cables RJ 48 to RJ 48 Provided by customer A
36. below e loopback has been commanded from the VT 100 user interface 1 2 e The LBK A or LBK B button has been pressed 1 2 Recommended Actions 1 Through the VT 100 user interface deactivate the loopback in the Loopback Menu 2 Press LBK A or LBK B button to deactivate the loopback AIS YEL on 1 or T1 B is lit The AIS YEL light will flash for AIS when the DS1 DSX 1 input receives a blue code a string of 2316 1s with no more than one zero The indicator will remain on solid if a YEL signal is present on the T1 Recommended Action Possible Cause see list below e For AIS the DS1 DSX 1 equipment is sending a blue code all Ts to the eode ie eC e ROS coge 1 2 e YEL the received is receiving a yellow signal from the far end indicating the far end is RED 3 5 Recommended Actions Reset the T1 equipment and verify normal operation Verify the presence of a DS1 DSX 1 signal at the T1 monitor jack using a 1 test set 1 2 3 Check the far end equipment for alarms or a red condition 4 Check the T1 connections at the far end equipment 5 Reset far end equipment TRACER 2xT1 User s Manual 39 61280003L2 1A Section 4 Troubleshooting IMPORTANT If problems persist after you have followed the Recommended Actions contact ADTRAN Technical Support at 800 726 8663
37. c Customer Service Department P O Box 140000 901 Explorer Boulevard Huntsville Alabama 35814 4000 When returning faulty equipment please include the RMA number on the shipping label TRACER 2xT1 User s Manual 49 61280003L2 1A Section 6 Warranty Ordering and Return Information 50 TRACER 2xT1 User s Manual GLOSSARY ACRONYMS USED IN THIS MANUAL i ER ctp oer Alternate Mark Inversion Bipolar 8 zero substitution BER attt ettet Bit error rate BBP ueniet eit Baseband Processor CRO tat Cyclic Redundancy Check meos Data Communications Equipment DTE shaken eens Data Terminal Equipment Extended superframe ceto e eb cae Federal Communications Commission luu pom E Forward error correction 11 m hec tcd td Intermediate Frequency hM edt Industrial Scientific and Medical LE BK Loopback QPSK nue bee Quadrature Phase Shift Keying Stetina en RARE Re Ies Radio frequency iue rae eid Radio frequency converter incontra Received signal strength indicator teste deret NE Receive dete Superframe jb cT Transmit TRACER 2xT1 User s Manual 51 61280003L2 1A Glossary 52 TRACER 2xT1 User s Manual APPENDIX A CABLE CONNECTIONS The cable connections required for various configurations are detailed bel
38. connecting to the T1 equipment Two types of physical interfaces are provided RJ 48C and bantam jacks The interfaces are illustrated in Figure 1 5 BBP Block Diagram The functions of the BBP are partitioned into three printed circuit boards or PCBs all contained in the same enclosure Viterbi Encoder Decoder Fc 70 MHz IF Interface Board Figure 1 5 BBP Block Diagram The DS1 DSX 1 interfaces provided for each channel are the same The upper bantam connectors labeled Monitor provide isolated monitor points for testing The lower bantam jacks provide signal insertion points The insertion of a bantam jack disconnects the RJ 48C connector from the circuit The DS1 DSX 1 interface can operate on line lengths up to 6000 feet When connecting either T1 interface to the public switched network an ADTRAN provided cross over cable part number 3125M01 1 is required to meet FCC part 68 and IC CS03 requirements This cable is included with the BBP and is labelled 1 Crossover This cable is required to cross over the TX and RX pairs to meet the connecting arrangement of a network interface device For connections to other CPE type equipment such as an ADTRAN TSU 100 a straight through T1 cable is provided by ADTRAN part number 3127004 and is included with the BBP TRACER 2xT1 User s Manual 5 61280003L2 1A Section 1 TRACER Description VT 100 RS 232 Interface A serial interface port using RS 232C signal l
39. cted to the DC jack on the BBP Verify that the AC power cord is connected to an AC outlet Verify that the AC outlet has proper AC voltage present 40 TRACER 2xT1 User s Manual 61280003L2 1A Section 4 Troubleshooting IMPORTANT If problems persist after you have followed the Recommended Actions contact ADTRAN Technical Support at 800 726 8663 Test light is lit or blinking The test alarm will remain on solid during power up indicating a self test is in progress The light will flash or remain on solid if the self test fails Recommended Action Possible Cause see list below e One flash interval indicates a RAM test failure 1 e Two flash interval indicates the T1 C mux failed internal test 1 e Three flash interval indicates the T1 A framer failed 1 e Four flash interval indicates the T1 B framer failed 1 e Five flash interval indicates a DSP failure 1 e solid indicates a faulty internal component 1 Recommended Actions 1 Replace the BBP or the RFC TST light is lit after pressing Remote Test button The Remote Test light will activate during a remote test in progress The Remote Test performs a 10 second bit error rate test BERT over the RF link to the far end Recommended Action Possible Cause see list below A Remote Test has been activated from the front panel
40. eboot or after thirty minutes of inactivity on the terminal The default configuration is No password Password protection is enabled via the configuration menu The password is also set via the configuration menu If the password is forgotten physical access to TRACER is required to access the terminal interface The password may be bypassed by holding in the LPBK A button while the system is rebooted This will bring up the terminal interface and allow the password to be changed or disabled via the configuration screen CAUTION This procedure is service affecting 28 TRACER 2xT1 User s Manual 61280003L2 1A Section 3 Operation MAIN MENU SELECTIONS System Status Page This page displays the status of major system components This is a status screen only no configurations can be performed More detailed information can be obtained by way of the Main Menu Current System Status N Elapsed Time 00 03 22 Adtran Technical Support 800 726 8663 C gt gt gt gt gt gt RF UP gt gt gt gt gt gt gt C l S 1 1 SI U RF UP U Local Tracer Remote Tracer Freq Plan A Freq Plan B Tx Pwr Rx Pwr Tx Pwr Rx Pwr Max X X Nominal Max X X Nominal Dx X x Site ADTRAN ox Dx Dx x Dx x x RFC Link Up Yes X X X X
41. en regional Bell operating companies RBOCs NEBS compliance is often required by telecommunications service providers such as BOCs Bell Operating Companies and Interexchange Carriers IEC for equipment installed in their switching offices NEBS defines everything from fire spread and extinguish ability test to Zone 4 earthquake tests thermal shock cyclic temperature mechanical shock and electro static discharge TRACER is NEBS Level 3 compliant see Table 1 1 for a list of testing requirements Table 1 1 NEBS Testing Requirement Document GR 63 Operational Thermal Short Term Conditions Description R4 6 72 Equip should withstand exposure to Table 4 4 Short R4 7 73 Equip should withstand exposure to Table 4 5 Short T Storage Environments and Transportation and Handling R4 3 R4 5 69 70 Exposure to tests in Tables 4 2 4 3 R4 41 R4 43 107 109 Packaged and Unpackaged shock criteria R4 58 124 Transportation vibration criteria Earthquake Zone 4 Level R4 44 R4 46 110 112 Equipment and Frame Level testing of Section 5 4 1 R4 48 114 Functional requirements testing of Section 5 4 1 O4 49 115 Constructed to meet testing of Section 5 4 1 R4 51 117 Base mounting to floor without auxiliary support R4 53 119 Specs for concrete anchors Airborne Contaminants Outdoor Levels O4 60 126 Equipment should withstand testing Table 4 10 R4 61 127 Equipment should withstand testing Table 4 10 and o
42. ency Converter or RFC The radio frequency converter RFC provides the radio frequency RF interface between the baseband processor and the antenna The RFC is partitioned functionally into two major components the transmitter and the receiver The major connections illustrated in Figure 1 8 are transmit signal receive signal and the IF signal connection The RFC unit is enclosed in metal enclosure approximately 10 5 inches x 5 5 inches x 1 inch and 15 mounted in a 1 U 19 inch rackmountable housing or mastmountable weatherproof enclosure 8 TRACER 2xT1 User s Manual 61280003L2 1A Section 1 TRACER Description Figure 1 8 RFC Module Three SMA connectors located on the RFC module provide RF and IF connection points A test point is provided for monitoring the received signal strength indicator RSSI The voltage relative to the GND test point present on this test point represents the level of the received signal This signal is used to align the antenna when installing the system and to verify the link is performing as designed Another test point is provided to monitor the transmitter output power during system configuration The only connections that must be made in the field are a coax connection between the baseband processor and the RFC and a coax connection between the RFC and the antenna These connections require male type N coax connectors The JF connector provides the connection between the baseband proce
43. end will send a BERT pattern for approximately 10 seconds The Remote TST indicator will turn yellow and remain on for the duration of the test If no bit errors are detected the Remote TST indicator will turn off If any bit errors are detected the Remote Fail indicator will turn red This test should be run after the radio link has been aligned If the test fails refer to Section 4 Troubleshooting for guidance ALARM CONTACTS Two sets of alarm contacts are provided on the rear of the BBP major alarm and minor alarm A major alarm indicates the radio link is not operational A minor alarm indicates that system performance is degraded or that the T1 interfaces are experiencing errors Normally open and Normally closed contacts are provided for both alarm types Under normal operating conditions there is no continuity between the Normally open and Common contacts and under an alarm condition continuity between those contacts exists The Normally closed and Common contacts normally have continuity while under alarm conditions these contacts are open TRACER 2xT1 User s Manual 21 61280003L2 1A Section 2 Installation 22 TRACER 2xT1 User s Manual SECTION 3 OPERATION VT 100 USER INTERFACE The TRACER may be accessed with a VT 100 compatible terminal set to 9600 bits per second 8 data bits and no parity connected to the RS 232 port on the back of the unit Once a terminal is connected pressing the ES
44. erencing and telemetry SPREAD SPECTRUM Spread spectrum is a form of communication in which the bandwidth of a message signal is intentionally increased or spread The FCC rules allow two methods of spreading frequency hopping and direct sequence TRACER employs direct sequence spread spectrum Direct Sequence A direct sequence transmitter spreads the signal by mixing the data with the output of a pseudorandom number generator which changes state at a rate higher than the data rate This rate is called the chipping rate The TRACER chipping rate is twelve times the data rate Coding Many different pseudorandom sequences exist The sequences are called pseudorandom because although they appear noise like they are determinant and repeat after a specific number of chips The longer a code is the better correlation characteristics it possesses These traits allow multiple spread 2 TRACER 2xT1 User s Manual 61280003L2 1A Section 1 TRACER Description spectrum systems to operate in the presence of one another with minimal interference if they are operating with different sequences The TRACER allows the selection of one of ten different 120 bit long sequences CHANNEL SELECTION The FCC has allocated 83 5 MHz of spectrum in the band in which the TRACER operates A TRACER system fully uses the available bandwidth transmitting in one half and receiving in the other Figure 1 2 illustrates the bandwidth division
45. evels is provided for attaching a VT 100 compatible terminal The connection is made via a DB 25 connector on the rear panel The data rate is configured for 9600 bps 8 data bits no parity and 1 stop bit A 7 day error history of the T1 interfaces and radio link is also provided Fifteen minute histories are provided for the most recent 24 hours of operation Alarm Contacts Two sets of alarm contacts are provided on the rear of the BBP major alarm and minor alarm A major alarm indicates the radio link is not operational A minor alarm indicates that system performance is degraded or that the T1 interfaces are experiencing errors Normally open and Normally closed contacts are provided for both alarm types Under normal operating conditions there is no continuity between the Normally open and Common contacts and under an alarm condition continuity between those contacts exists The Normally closed and Common contacts normally have continuity while under alarm conditions these contacts are open IF Signal The N type connector on the rear panel provides the interface point between the BBP and the RFC This connection provides the data signal power and configuration information to the RFC A coaxial cable ADTRAN part number 3125RF027 is provided for connecting the BBP to the RFC for the rackmount model Cable for connecting the BBP to a mastmount RFC must be provided by the customer after the length of cable has been determined Po
46. figurations are provided DSX 1 for short haul interface less than 655 feet and DS1 for long haul interfaces greater than 655 feet The settings are detailed below Interface Type LBO Switch Setting DSX T 2e 0 133 feet s 2 3 suas aane 133 266 feet 4 DSX tees 266 399 5 suis 3905583 toi toco 6 DSX T 533 655 feet 7 DS osc eid oes 8 DS11 3I SO Bik 9 dee 10 22 5 4 11 14 TRACER 2xT1 User s Manual 61280003L2 1A Section 2 Installation LINK PLANNING IMPORTANT The appropriate transmitter power must be calculated as part of the link planning The factors that must be taken into account when planning a link are optimal received signal level transmitter power antenna feedline loss each end antenna gain each end free space path loss and required fade margin IMPORTANT The optimal signal level for the receiver is 60 dBm Antenna Feedline Loss Feedline loss is a function of feedline type and length Feedline loss per 100 feet for several types of coax at IF and RF frequencies is detailed in the table below The IF loss applies to BBP RFC interconnection and the RF loss applies to RFC antenna interconnection Antenna manufacturers specifications may vary IF Loss 100 feet RF Loss 100 feet Cable in dB in dB
47. for terminating bonding jumpers at Part K or Article 250 of the National Electrical Code ANSI NFPA 70 Termination of the supplementary equipment grounding conductor is permitted to be made to building steel to a metal electrical raceway system or to any grounded item that is permanently and reliably connected to the electrical service equipment ground Bare covered or insulated grounding conductors are acceptable A covered or insulated grounding conductor shall have a continuous outer finish that is either green or green with one or more yellow stripes The supplemental equipment grounding terminals are located on the rear of the BBP adjacent to the power connectors and on the rear of the rackmounted RFC TRACER 2xT1 User s Manual 13 61280003L2 1A Section 2 Installation DS1 DSX 1 Interface The rear panel of the TRACER has two sets of jacks labeled 1 and T1B which provide the same functionality The pin assignments for the eight position modular jack are listed below Pin Name Function Race Send data ring Send data tip d Not used Zwei Receive data ring S MNA d Receive data tip Not used E Te Not used B ns aee ce eive test Not used Bantam jack connections are provided for test equipment access Data is received on the jack labelled IN and is transmitted on the jack labelled OUT Bantam jacks are provided for both inserting and monitor
48. formance History 4 T1B Performance History 5 Alarm Page 6 Test Menu 7 Configuration Menu 8 Remote Access EN ESC for System Status 2 T1 Status Page Figure 3 4 Main Menu Page The status of the two T1 interfaces is displayed on this screen Information such as alarm status T1 receive levels line coding and framing type are shown This is a status screen only ie Loop Normal State Received Signl Lvl RX LOS Red Alarm RX AIS Blue Alarm RX Yellow Alarm TX AIS Blue Alarm Framing Line Code Line Build Out TRACER T1 Status Menu Site Adtran T1A Normal 2dB to 7 5dB 051 dB T1B Normal Less than 22 5dB Yes No No Yes ESF B8ZS 051 OdB C Indicates last set by front panel Otherwise last set by terminal Press m Main menu EN Figure 3 5 T1 Status Page 30 TRACER 2xT1 User s Manual 61280003L2 1A Section 3 Operation Link Performance History This screen presents detailed error statistics for the RF link The data is presented as RFCL Radio Frequency Converter Link and LINK RF Link representing seconds out of service for each The RFCL represents the communications channel between the BBP and RFC via the IF interconnect cable The counts for the most recent 24 hours are recorded in 15 minute increments Twenty four hour totals are recorded for the most recent days TRACER Link Per
49. formance History Site Adtran 24 Hour Registers 15 Minute Registers RFCL LINK RFCL LINK RFCL LINK 00000 00000 Current gt 000 000 1 Figure 3 6 Link Performance History Page Channel A Statistics Page This screen presents detailed error statistics for The data is presented as Errored Seconds and Severely Errored Seconds The counts for the most recent 24 hours are recorded in 15 minute increments Twenty four hour totals are recorded for the most recent days TRACER T1A Performance History Site Adtran 24 Hour Registers 15 Minute Registers ES SES 5 5 5 5 5 5 00000 00000 lt Current gt 000 000 1 1 Figure 3 7 Channel A Statistics TRACER 2xT1 User s Manual 31 61280003L2 1A Section 3 Operation Channel B Statistics Page This screen presents detailed error statistics for The data is presented as Errored Seconds and Severely Errored Seconds The counts for the most recent 24 hours are recorded in 15 minute increments Twenty four hour totals are recorded for the most recent days 7 TRACER T1B Performance History 15 Minute Registers 5 5 5 5 5 5 24 Hour Registers ES SES 00000 00000 lt Curre Site Adtran nt gt 000 000 1 EN Figure 3 8 Channel B Statistics Page Alarm Page This screen presents alarm info
50. ing the interfaces When a plug is placed in the insert jack the connection between the modular jack and the interface circuitry is broken The monitor jacks provide access to monitor the transmitted and received signals without interference When connecting either T1 interface to the public switched network an ADTRAN provided crossover cable part number 3125M01 1 is required to meet FCC part 68 and IC CS03 requirements This cable is required to cross over the Tx and Rx pairs to meet the connecting arrangement of a network interface device This cable labelled T1 Crossover is included with the BBP For connections to other CPE type equipment such as an ADTRAN TSU a straight through T1 cable ADTRAN part number 3127004 is included with the BBP Each DS1 DSX 1 interface must be configured for line code and framing either from the front panel rocker switches or via the VT 100 terminal The choices for line code are AMI and B8ZS The options for framing are SF and ESF Each channel can be configured independently of the other and should be configured to match the attached T1 equipment The line build out LBO must be set for each DS1 DSX 1 interface The LBO setting allows each DSI DSX 1 interface transmitter to drive the interface with the correct signal strength based on the line attenuation between TRACER and the attached equipment The LBO is independently set for each interface via rotary switches on the front panel Two sets of con
51. ipment and verify normal operation Verify the presence of a DS1 DSX 1 signal at the T1 monitor jack using a 1 test set Check the far end equipment for alarms or a red condition Check the T1 connections at the far end equipment Um oW Reset the far end equipment RF Link Alarm or Code Sync Alarm The RF Link Alarm will activate when the link is down or not operational The Code Sync Alarm will activate when data synchronization has not been achieved between the RF link Recommended Action Possible Cause see list below The RE lnkas down ertet et estre 1 10 The RX power is below the 91 dbm threshold 1 4 7 10 e far end transmitter is off or is transmitting low power 1 4 7 10 The RF paths not aligned te ite 1 3 10 e Water is in the antenna feedhorn or connectors 1 4 e Both units set to the same frequency 5 10 e Both units are not set to the same PN code 6 connection between the BBP and the RFC is faulty 1 7 10 connection between the RFC and the antenna is faulty 1 7 10 The BBP or RECas faulty eet eee EE es 10 44 TRACER 2xT1 User s Manual 61280003L2 1A Section 4 Troubleshooting IMPORTANT If problems persist after you have followed the Recommended Actions contact ADTRAN Technical Support at 800 726 8663 Recommended Actions 1 2
52. ive when there is no signal present at the T1A interface Active when the far end TI A equipment is in red alarm Active when the DSI DSX 1 is receiving a blue alarm code all ones Active when T1A is transmitting a blue alarm code all ones Active when the T1B incoming data stream presents bipolar violations Active when there is no signal present at the T1B interface Active when the far end T1B equipment is in red alarm Active when the TIB DSI DSX 1 is receiving a blue code all ones Active when the TIB DSI DSX 1 is transmitting a blue code all ones 26 TRACER 2xT1 User s Manual 61280003L2 1A Section 3 Operation Table 3 4 Discreet Alarm Summary Alarm Type Interface T1 Mux Sync Fail Link Error RF Low Yellow Alarm Bipolar Violations Received AIS Blue Alarm Carrier Loss Sync Loss Data Loss Yellow Alarm Bipolar Violations Received AIS Blue Alarm Carrier Loss Sync Loss Data Loss Major and minor alarm contacts are provided on the rear of the baseband processor A major alarm indicates the radio link is not operational A minor alarm indicates that system performance is degraded or that the T1 interfaces are experiencing errors TRACER 2xT1 User s Manual 27 61280003L2 1A Section 3 Operation RF DOWN SYSTEM STATUS If there is an error condition on the RF link the RF UP labels on the link map will be replaced by RF from the remote site However when the RF link is intact
53. ment Loops the local T1 B Interface towards the local customer equipment Loops the local T1 A interface towards the remote customer equipment over the RF Link Loops the local T1 B interface towards the remote customer equipment over the RF Link Loops the remote T1 A Interface towards the local customer equipment over the RF Link RO de SNS Loops the remote T1 B Interface towards the local customer equipment over the RF Link TRACER 2xT1 User s Manual 33 61280003L2 1A Section 3 Operation Configuration Menu This screen allows all system configurations to be performed TRACER Configuration Menu Site Adtran 1 T1A Framing 14 Enable Disable T1 B 2 T1A Line Code 15 Change TBOS Display Number 3 T1A Line Build Out 16 Enable Disable Modem Control 4 T1B Framing 17 Hangup Modem 5 T1B Line Code 6 T1B Line Build Out 7 Set Chipping Code 8 Set TX Power 9 Set Freq Plan 10 Reset all statistics 11 Enable Disable Password 12 Change Password 13 Change Site ID Figure 3 12 Configuration Menu The menu selections are described below T1A and T1B Framing allow each T1 to be configured for SF or ESF framing T1A and T1B Line Code allow each T1 to be configured for AMI or B8ZS T1A and T1B Line Buildout allow each T1 to be configured for the appropriate line buildout based on the distance to the T1 equipment WARNING It is possible for the spreading code to be changed remotel
54. ntenna feedline cable Antenna and mounting hardware VT 100 terminal and RS 232 interface cable optional 21 to 60 volt DC power source available from ADTRAN either polarity referenced to ground Mastmounted RFC configuration Provided by ADTRAN Baseband processor Mastmounted RFC e DSI DSX 1 interface cables RJ 48 to RJ 48 Provided by customer Antenna feedline cable Antenna and mounting hardware BBP to mastmounted RFC IF interconnect cable VT 100 terminal and RS 232 interface cable optional 21 to 60 volt DC power source available from ADTRAN either polarity referenced to ground TRACER 2xT1 User s Manual 61280003L2 1A Section 2 Installation INSTALLATION Location and Mounting Install the TRACER in a location that requires minimal antenna feedline length the loss in this cable directly affects overall system performance The BBP is designed to be mounted in a rack above the Although no space is needed between the units certain regulations may require at least 75 of space above and below the BBP Power Requirements The TRACER can operate from a supply between 21 and 60 volts DC with either polarity referenced to ground and consumes 30 watts Amperage is determined by dividing the wattage 30 by the input voltage i e 30 watts 48 volts 625 amps Grounding The following grounding instructions are derived from the Underwriters Laboratory UL 1459 Standard for Safe
55. on LEDs indicating overall system integrity are listed below cesare des Red indicates that the self test has completed and failed PWR Green indicates that DC voltage is applied The LEDs associated with the DS1 DSX 1 interfaces are listed below There are two sections of identical indicators one for each DS1 DSX 1 interface eese Red if the incoming T1 stream contains bipolar violations RED nne Red if there is no signal present at the T1 interface EPBK RSS Yellow if the T1 interface is in loopback Flashes to indicate Yellow Alarm remains On solid to indicate an AIS alarm when the DS1 DSX 1 is receiving a Blue code The LEDs indicating error conditions are listed below Red indicates the received RF carrier level is too low Link Down Radio path is down Reset the system LBKA een Toggles the 1 between no loopback and line loopback Selects TI line buildout Template on right edge of faceplate designates switch setting Toggles T1 B between no loopback and line loopback TRACER 2xT1 User s Manual 7 61280003L2 1A Section 1 TRACER Description UP increments radio transmit power up DOWN increments radio transmit power down VT100 terminal will indicate Tx Power setting Remote Tes
56. ow Terminal Connection DB25 TRACER DCE Terminal DTE Number Name Number Name 2 neuen TXD 2 TXD SEES 3 RXD RTS 4 5 RTS ets CTS CTS 6 sets DSR gt 6 DSR diis Ground 7 Ground Personal Computer Connection DB9 TRACER DCE Computer DTE Number Name Number Name pa TXD ra 3 TXD RXD 2 RXD asas sese RTS 5 CTS 88 CTS DSR 5 6 DSR dass Ground 5 Ground Modem Connection DB25 TRACER DCE Modem DCE Number Name Number Name a 3222222 RXD BY TXD RTS 5 CTS ets Eus RTS DSR gt 20 DTR Ground 7 Ground TRACER 2xT1 User s Manual 61280003L2 1A Appendix A Cable Connections TELEMETRY BYTE ORIENTED SERIAL TBOS MANAGEMENT CONNECTIONS RJ48 TBOS operates via RS422 therefore the inputs and outputs are differential pairs The pinout for the MANAGEMENT IN port is pin 1 Transmit out of TRACER pin 3 Transmit out of TRACER pin 5 Receive in to TRACER pin 7 Receive in to TRACER The pinout for the MANAGEMENT OUT port is pin 1 Receive in to TRACER pin 3 Receive in to TRACER pin 5 Transmit out of TRACER pin 7 Transmit out of TRACER The rear panel connectors are on a double stack RJ45 so the
57. pin numbers are opposite of each other A TBOS monitoring system will need to define the following bitmaps to indicate status and alarm conditions MANAGEMENT OUT TOP CONNECTOR PIN 1 PIN 8 MANAGEMENT IN BOTTOM CONNECTOR Figure 3 1 Rear Panel Connectors TRACER 2xT1 User s Manual
58. requency Interference Statement gt usa coq oie tet teas RAN TE 11 Sbielded Cables ee eva oe Pe ON ad ECRIRE SARI 11 FCO Quiput Power Restrictions queues cea bon er 11 Exposure to Radio Frequency Fields a Pe i to p eed OR arva 11 iae e Rp dint teat eet ei result a 12 Rackmounted REG Configuration tene earn e e o e er i A 12 Mastmounted RFC Configuratiotis oio ertet eei oe eget 12 E 13 Location ando MODBUTDB cte pes Pact co eun oce e Ate QU Ci ed a 13 Power Requitemeits ee ade FRE VR dave sa 13 Grondin gs opa us etes odiis i Eod aesan Eo esq e e ett Eben 13 DSI DSX I Interface pmo te V E Ear Rd MR aw pm at Fe a 14 Linke p ORI 15 Antenna LOSS Sr Ee URS 15 Ant nna GRATIN 15 Path LOSS 16 16 Setting the Transmite ue aede er dy o PR e Un DE 17 Setting the RFC Frequency Pla egt se tdt o pert Fs Iu eeu ideni be e 17 Connecting the BBP and the
59. rmation for the system The T1A or T1B alarms are described in the chapter entitled Troubleshooting If any of the TI A or T1B alarms are active a minor alarm will be indicated at the alarm contacts The RF link alarm will be activated when communication between the BBP and the RFC has failed Code Sync Carrier Sync and 1 Mux Framer alarms indicate that various portions of the spread spectrum data pump are not operating Any of these alarms will cause a major alarm to be activated at the alarm contacts Test Menu f Code Sync Alarm Carrier Sync Alarm T1Mux Framer Alarm RX LOS Red Alarm RX AIS Blue Alarm RX Yellow Alarm BPV Alarm TX AIS Blue Alarm Press m for Main Menu Site Adtran off off off T1A off off off off off TRACER Alarm Page T1B off off off off off EN Pi Figure 3 9 Alarm Page 32 TRACER 2xT1 User s Manual 61280003L2 1A Section 3 Operation This screen allows each T1 to be put into loopback mode TRACER Test Menu Site Adtran 1 Local T1A Line Loopback 2 Local T1B Line Loopback 3 Local T1A Link Loopback 4 Local T1B Link Loopback 5 Remote T1A Link Loopback 6 Remote T1B Link Loopback NM m Main menu P Figure 3 10 Test Menu Figure 3 11 T1 Loopback Locations Each menu selection is described below Loops the local T1 A Interface towards the local customer equip
60. ront panel of the BBP or via the configuration page of the interface VT 100 The RFC must be attached by way of the IF cable during this operation Attach an RF power meter to the N type antenna connector on the RFC and adjust the power by way of the potentiometer or VT 100 until the desired transmitter power is obtained For convenience the transmitter power adjustment should be made before the RFC is installed on the mast SETTING THE RFC FREQUENCY PLAN The frequency plan designates on which frequencies the TRACER transmits and receives Plan A corresponds to a transmitting Tx frequency of 2422 MHz and a receive Rx frequency of 2462 MHz Plan B corresponds to a Tx frequency of 2462 MHz and a Rx frequency of 2422 MHz Shipment of a link consists of one RFC set to Plan A and the other set to Plan B unless specified otherwise The RFC plan can however be changed in the field if required This procedure involves configuring the RFC interconnect cables TRACER 2xT1 User s Manual 17 61280003L2 1A Section 2 Installation For rackmounted systems do the following to reconfigure the RFC interconnect 3 4 5 6 7 8 9 Remove the four screws which retain the RFC cover and remove the cover The RF unit may be identified by following the connection from the port labelled on the rear of the RFC This connection terminates at the RF unit The diplexer may be identified by following the connection from the Antenn
61. s air GR 1089 ESD Installation and Repair O2 4 4 Perform under tests of IEC 801 2 Clause 5 EMI Emissions Open Doors O3 2 9 EMI Emissions Open Doors EMI Immunity Open Doors CR3 11 18 Radiated Performance Criteria R3 10 17 Radiated Immunity Criteria Steady State Power Induction Conditional Requirements CR5 2 43 Signaling test to Table 5 1 720 ft CR5 4 45 C Message Signaling test to test condition gt 20 ft CR5 9 50 Signaling test to Table 5 3 220 ft CR5 11 52 C Message weighted metallic noise test 720 ft TRACER 2xT1 User s Manual 61280003L2 1A Section 1 TRACER Description APPLICATIONS Any application that would typically use metallic T1 as a transport can use the TRACER instead Figure 1 1 illustrates a typical application Antenna Antenna RF Cable Mast Unit 1 IF cable HF TRACER TRACER vt 1909 Baseband Processor Baseband Processor Rack mount Terminal T1 EM Ti p Cell Radio MSC Cellular PCS Site Switch 2xT1 Mast mounted RFC 2xT1 Rack mounted RFC Mast and Rack mount RFCs may be mixed to accommodate individual system requirements Figure 1 1 Typical Application The TRACER can be used in any application requiring that data be shared at a high rate of speed In addition to telephony applications TRACER can be used in data communications such as inter networking video conf
62. s and also to prevent interference with nearby radio and television reception when using the AC voltage adapter It is essential that only the ADTRAN provided power cord be used FCC OUTPUT POWER RESTRICTIONS The FCC does not require licensing to implement this device However the FCC has established restrictions regarding maximum output power and the adjustments required when employing directional gain antennas Refer to Setting the Transmitter Power in Section 2 of this manual These restrictions are detailed in FCC Part 15 247 b 1 3 1 and 3 ii1 It is the responsibility of the individuals designing and implementing the radio system to assure compliance with these and any other pertinent FCC Rules and Regulations This device must be professionally installed EXPOSURE TO RADIO FREQUENCY FIELDS This device is designed to provide a maximum power output of 100 mW This level of RF energy in itself is below the Maximum Permissible Exposure MPE levels specified in FCC OET 65 97 01 The installation of high gain antenna equipment in the system configuration may create the opportunity for exposure to levels higher than recommended for the general population at a distance less than one meter from the center of the antenna The following precautions must be taken during installation of this equipment TRACER 2xT1 User s Manual 11 61280003L2 1A Section 2 Installation The installed antenna must not be located in a manner that
63. ssor and the rackmounted or mastmounted RFC An 8 inch IF cable ADTRAN part 3125RF027 9 A is provided for rackmount systems The TO ANTENNA connection provides the connection between the RFC and the antenna A block diagram of the RFC functions is show in Figure 1 9 The RFC module is enclosed in either a 19 inch EIA rackmount housing or a weather tight enclosure suitable for mastmounting near the antenna for enhanced system performance The RFC mastmount and rackmount housings are illustrated in Figures 1 10 and 1 11 Splitter Figure 1 9 RFC Function Block Diagram TRACER 2xT1 User s Manual 9 61280003L2 1A Section 1 TRACER Description Figure 1 10 Mastmount RFC Housing Figure 1 11 Rackmount RFC Housing Antenna TRACER is intended to be coupled with an antenna that is directional and provides signal gain There are several reasons for this requirement e TRACER operates in point to point applications therefore an omnidirectional antenna is not needed e FCC provides no recourse in this band in the event of nearby interference so a highly directional antenna reduces the likelihood of interference in the antenna pattern e The low power transmitter is intended to be used with a high gain antenna for long links The antenna requirements are listed below Minimum 15 dBi Minimum return loss 15 dB Connector N type
64. t Initiate a remote test across the RF link Non volatile Memory The TRACER system contains non volatile memory to retain certain configuration settings These settings include Frequency plan Chipping code if set from VT 100 Password Password enabling Site name T1 line coding if set from VT 100 T1 framing if set from VT 100 Built In Tests The TRACER has several features to aid in site setup and later debugging These diagnostics include T1 loopbacks and a link test with BERT Bit Error Rate Test data A link test is performed by pressing the test button The remote unit will then send a pseudorandom data pattern and the local end will compute a BER After the conclusion of the test the remote end will automatically be instructed to terminate the pattern generation If any bit errors are introduced the Remote Test Fail LED will illuminate The monitor points provided on the front panel of the system are listed on the next page T siii ete tdt Demodulated received baseband output Demodulated received baseband output CL Recovered clock for observing EYE pattern RSSE 5er DC voltage indicating strength of the received signal at the antenna System 5 volts CE System 5 volts 12 2 eR System 12 volts the System 12 volts RF PWR Voltage supplying RF power GND ieee niin System ground Radio Frequ
65. t Status Local T1A Line Loopback 0 Normal 1 Loop Status Local T1B Line Loopback 0 Normal 1 Loop Status Local T1A Link Loopback 0 Normal 1 Loop Status Local T1B Link Loopback 0 Normal 1 Loop Status Remote T1A Link Loopback 0 Normal 1 Loop Status Remote T1B Link Loopback 0 Normal 1 Loop RFC Link Fail Normal 1 Alarm Code Sync Fail Normal 1 Alarm Carrier Sync Fail Yormal 1 Alarm T1 Mux Sync Fail Link Err Yormal 1 Alarm Remote RF Link Down Yormal 1 Alarm RF Low 0 Normal 1 Alarm Remote Test Fail 0 Normal 1 Alarm Unused TIA BPV Normal 1 Alarm TIA Red Alarm Normal 1 Alarm TIA Yellow Alarm lormal 1 Alarm TIA AIS Blue Alarm Normal 1 Alarm TIA Transmit AIS Normal 1 Alarm Unused Unused Unused BPV 0 Normal 1 Alarm Red Alarm 0 Normal 1 Alarm Yellow Alarm 0 Normal 1 Alarm AIS Blue Alarm 0 Normal 1 Alarm Transmit AIS 0 Normal 1 Alarm Unused Unused Unused TRACER 2xT1 User s Manual 25 61280003L2 1A Section 3 Operation Table 3 2 TRACER TBOS Command Map Command Command Type Command Definition Latch Latch or Unlatch 10 Second Remote Test Local T1A Line Loopback Local T1B Line Loopback Local T1A Link Loopback Local T1B Link Loopback Remote T1A Link Loopback Remote T1B Link Loopback Latch or Unlatch Latch or Unlatch Latch or Unlatch Latch or Unlatch Latch or Unlatch
66. ta being sent to the modem or received from the modem while idle The required Null Modem adapter may be obtained at any computer hardware supplier A straight through serial cable should be used between the adapter and the modem or TRACER unit To ensure that the far end modem disconnects when desired option 17 of the CONFIGURATION MENU will disconnect the modem The modem must be configured to drop the connection on loss of DTR in order to disconnect TELEMETRY BYTE ORIENTED SERIAL TBOS INTERFACE E telemetry systems were developed by the pre divestiture AT amp T organization as a method to monitor and control diverse network elements from a remote centralized location Status and command remote SAC units were employed in the central office to convert discrete contact closure alarms from monitored equipment into E telemetry for efficient transfer of data to and from the operations center TRACER 2xT1 User s Manual 23 61280003L2 1A Section 3 Operation With the advent of microprocessor technology the alarm processing remote APR alarm remote or simply Remote was developed allowing discrete alarm links with network elements to be supplanted by a more efficient serial link TBOS is the communications protocol defined for this link The TRACER rear panel designates the TBOS ports as MANAGEMENT IN on the bottom and MANAGEMENT OUT on the top The TBOS polling station is connected to the MANAGEMENT IN port If several de
67. the RX power is between 55 and 91 dBm using the VT 100 user interface or RSSI DC voltage test points 2 Check the far end transmitter for operation and proper transmit power Check the RF path using a spectrum analyzer or RSSI voltages for proper alignment Have path professionally re aligned and check system path engineering Check the antenna feedhorn and all outdoor connections for water Check all connections between the BBP the RFC and the antenna Check the IF and RF cables for shorts Check the connections inside the mastmount or rackmount RFC Replace the RFC es v 42 TRACER 2xT1 User s Manual 61280003L2 1A Section 4 Troubleshooting IMPORTANT If problems persist after you have followed the Recommended Actions contact ADTRAN Technical Support at 800 726 8663 Troubleshooting Using the VT 100 User Interface This section provides information for troubleshooting the Alarm Menu on the VT 100 user interface The conditions present in the Alarm Menu are software indications and should match the front panel LED indications RED Alarm This alarm will activate when there is no signal present at the T1 interface This alarm is the same as a RED alarm on the front panel Recommended Action Possible Cause see list below e No DS1 DSX 1 signal a degraded DS1 DSX 1 signal is present atthe DSI DSX 1 input een ec 12 e The connection at the input or DS1 DSX 1
68. through the null modem adapter When modem is configured to disconnect on loss of DTR the connection will drop REMOTE ACCESS This allows access to the remote radio via the RF communications link When accessed the user will be able to identify remote mode by each screen titled Remote The remote menus are accessed via a 2400 bps link causing screen refresh to be slower than local mode All pages are displayed as if the user were connected to the VT 100 terminal at the remote end of the link Every screen that can be accessed at the local radio can be accessed at the remote radio via this option Remote Current System Status Elapsed Time 00 21 13 ADTRAN Technical Support 256 963 8716 gt gt gt gt gt gt gt RF UP gt gt gt gt gt gt gt T1 1 S 1 S 1 1 IU I N lt lt lt lt lt lt RF UP U I Local Tracer Remote Tracer Freq Plan B Freq Plan A Tx Pwr Rx Pwr Tx Pwr Rx Pwr Max X Nominal Max X Nominal L1 xX t1 xX CJ x Site Adtran EJ x L1 DX L1 DX x x RFC Link Up Yes X x x x Code Sync Yes x Carrier Sync Yes x 1 Link Sync Yes IX x Chipping Code 9 IX X DX DX Dx x Min X X Min Min X X Min Ne m Main menu to exit remote mode Figure 3 13 Remote Current System Status
69. ts with 0 volts corresponding to a weaker received signal and 4 volts corresponding to a stronger received signal RF LOW The RF Low LED indicates that the received signal is within 10dB of the minimum received signal strength 80 dBm If this indicator is on the link performance may be marginal The antennas should be peaked in azimuth and elevation until the desired signal level is achieved RSSI may be monitored on either the RF unit or the front of the BBP If the received signal is too strong and RSSI reaches a maximum such that the peak cannot be discerned then the transmitter on the far end should be turned down At this point the radio link should be operational Proper operation can be determined by the status of the LINK DOWN LED If this LED is on the link is not operational If this LED is not on the link is operating Certain types of interference can cause one end of a path to operate and the other end to fail In some instances this may be corrected by swapping the frequency plan at each end thus avoiding the interference if it is stronger at one end than the other Changing the spreading code at each end may also allow interference to be mitigated 20 TRACER 2xT1 User s Manual 61280003L2 1A Section 2 Installation REMOTE BERT The TRACER includes a Bit Error Rate Tester BERT to verify that the installed system is operating correctly When the Remote Test button is pushed on the local BBP the remote
70. ty Telephone Equipment dated September 20 1993 An equipment grounding conductor that is no smaller in size than the ungrounded branch circuit supply conductors is to be installed as part of the circuit that supplies the product or system Bare covered or insulated grounding conductors are acceptable Individually covered or insulated equipment grounding conductors shall have a continuous outer finish that is either green or green with one or more yellow stripes The equipment grounding conductor is to be connected to ground at the service equipment The attachment plug receptacles in the vicinity of the product or system are all to be of a grounding type and the equipment grounding conductors serving these receptacles are to be connected to earth ground at the service equipment A supplementary equipment grounding conductor shall be installed between the product or system and ground that is in addition to the equipment grounding conductor in the power supply cord The supplementary equipment grounding conductor shall not be smaller in size than the undergrounded branch circuit supply conductors The supplementary equipment grounding conductor shall be connected to the product at the terminal provided and shall be connected to ground in a manner that will retain the ground connection when the product is unplugged from the receptacle The connection to ground of the supplementary equipment grounding conductor shall be in compliance with the rules
71. vailable The DS1 interface can operate on line lengths up to 6 000 feet When set for DSX 1 interface LBOs for 0 133 feet 266 399 feet 399 533 feet and 533 655 feet are available TRACER SYSTEM CONFIGURATION A TRACER system is composed of three major subsystems a baseband processor a radio frequency convertor and an antenna The following section describes the system components Baseband Processor or BBP The BBP ADTRAN part number 12800031 2 is a 1 U 19 inch rackmountable unit that provides the system electrical interfaces user controls and indicators and performs the spread spectrum processing for the system The rear panel provides all of the electrical interface points DSI DSX 1 interface DS1 DSX 1 monitor VT 100 terminal alarm contacts IF signal DC power from facility and power from AC adapter The BBP and its rear panel are illustrated in Figure 1 3 and 1 4 Figure 1 3 BBP 4 TRACER 2xT1 User s Manual 61280003L2 1A Section 1 TRACER Description RS232 EA 3 Figure 1 4 BBP Rear Panel DS1 DSX 1 Interface Two DSI DSX 1 interfaces labelled T1A and T1B are provided for
72. vices or TRACER systems are daisy chained together plug the TBOS manager into the first units MANAGEMENT IN port that physical unit does not have to be assigned TBOS address 1 and then connect that units MANAGEMENT OUT to the next units MANAGEMENT IN port Follow that routine down the line up to 8 units TBOS operates via RS422 therefore the inputs and outputs are differential pairs The pinout for the MANAGEMENT IN port is pin 1 Transmit out of TRACER pin 3 Transmit out of TRACER pin 5 Receive in to TRACER pin 7 Receive in to TRACER The pinout for the MANAGEMENT OUT port is pin 1 Receive in to TRACER pin 3 Receive in to TRACER pin 5 Transmit out of TRACER pin 7 Transmit out of TRACER The rear panel connectors are on a double stack RJ45 so the pin numbers are opposite of each other A TBOS monitoring system will need to define the following bitmaps to indicate status and alarm conditions MANAGEMENT OUT TOP CONNECTOR PIN 1 PIN 8 MANAGEMENT IN BOTTOM CONNECTOR Figure 3 1 Rear Panel Connectors 24 TRACER 2xT1 User s Manual 61280003L2 1A Section 3 Operation A TBOS monitoring system will need to define the following bitmaps to indicate status and alarm conditions Table 3 1 TRACER TBOS Alarm and Status Map Char Point Type Scan Point Definition Description Status Frequency Plan 0 Plan A 1 Plan B Status 10 Second BERT Test 0 Normal 1 In Tes
73. wer The unit receives power via one of two connectors Power for the entire system is provided by these interfaces The three pin circular DIN connector is provided to connect an optional ADTRAN desktop AC adapter ADTRAN part number 1360DSK24 VL 1 providing 24 volts DC The three pin terminal block allows the connection of any DC power source providing between 21 and 60 volts DC The power consumption of the entire system is 30 watts Controls and Indicators The system may be configured via the front panel which is accessible behind a drop down panel on the right half of the BBP The front panel is illustrated in Figures 1 6 and 1 7 TRACEP FREQ SYSTEM PLAN A RF LOW PLAN B 2 LINK DOWN Figure 1 6 BBP Front Panel with door closed 6 TRACER 2xT1 User s Manual 61280003L2 1A Section 1 TRACER Description B 05020 819 CODE BKA S DI 1 6 183 266 T4 399 Q M 22222 7548 533 RIT 048 655 Figure 1 7 BBP Front Panel with door open Options that are set from the front panel can be overridden via the terminal interface As a rule a green LED indicates a good situation a red LED indicates an error situation and a yellow LED indicates a configuration opti
74. y through the VT 100 interface from the other end of the link When this is performed communications will be lost to the far end The spreading code will change to code 0 and communications will be lost as soon as this change is made If this happens set the Spreading Code on the local unit to code 0 The units should regain communications as soon as the correct code is selected Set Chipping Code allows the chipping code to be selected Each end of the link must be configured for the same chipping code Set Tx Power allows the transmitter power to be adjusted Set Freq Plan manually allows the frequency plan to be set to A or B One end of a link must be set to A and the other set to B This function is automatically set when the BBP is attached to the corresponding RFC Reset All Statistics resets all the error counters Enable Disable Password allows password protection to be enabled or disabled The default setting is Disabled Change Password allows the password to be set 34 TRACER 2xT1 User s Manual 61280003L2 1A Section 3 Operation Site ID allows a string of up to 32 characters to be entered as a site identifier Enable T1 B disables Alarm and LEDs related to T1 B but will pass T1 data TBOS changes the TBOS Equipment ID Enable Modem Control enables modem control leads on RS 232 port See Modem Connection under Operation Section Hangup Modem lowers the DSR signal which becomes DTR after passing

Download Pdf Manuals

Related Search

Related Contents

Instrucciones de seguridad importantes  Operating Instructions - York Survey Supply Centre  MERIS Level 1 Dtailed Processing Model    PM2.5を - 測定器販売のSATO測定器.COM    d-COLOR - Olivetti  Climadiff CV52IXDZ  CP150 Service Manual - Ice Machines Ireland  EVGA 01G-P3-1289-ER GeForce GTX 280 1GB graphics card  

Copyright © All rights reserved. Failed to retrieve file