User's Manual

INSTALLATION AND MAINTENANCE MANUAL
LYNX.sc E1 FAMILY
SPREAD SPECTRUM RADIOS
NOVEMBER 1999
ii TOC & INTRODUCTION
3.5 FREQUENCY CHANNEL PLANS .................................................................................................................................3-12
3.6 MOUNTING THE LYNX.SC.........................................................................................................................................3-15
3.7 POWER CONNECTION AND WIRING...........................................................................................................................3-16
3.7.1 DC Power Wiring...........................................................................................................................................3-17
3.7.2 AC Power Connection..................................................................................................................................3-19
3.8 ANTENNA CONNECTION..............................................................................................................................................3-20
3.9 TRANSMISSION LINE CONNECTION ............................................................................................................................3-21
3.10 ANTENNA INSTALLATION & ALIGNMENT ..................................................................................................................3-22
3.11 CEPT-1 (E1) INTERFACECONNECTION..................................................................................................................3-25
3.12 DIP SWITCH SETTINGS............................................................................................................................................3-26
3.12.1 Channel Selection.........................................................................................................................................3-26
3.12.2 Loopback Test Signal Selection..............................................................................................................3-27
3.12.3 Spreading Code Selection..........................................................................................................................3-28
3.12.4 Input Alarm (Data Loss) Enable/Disable...............................................................................................3-29
3.12.5 AIS Enable/Disable.....................................................................................................................................3-30
3.13 SYSTEM TURN-UP TO SERVICE .................................................................................................................................3-31
3.13.1 Output Power Adjustment ..........................................................................................................................3-39
3.13.2 Loopback/BER Testing..............................................................................................................................3-40
3.13.3 Error LED Mode Selection..........................................................................................................................3-42
3.14 ADDITIONAL CONNECTIONS .......................................................................................................................................3-43
3.14.1 Orderwire Connection and Address Selection......................................................................................3-43
3.14.2 Alarm Connections.......................................................................................................................................3-46
3.14.3 Diagnostics Port Operation.........................................................................................................................3-48
3.14.3.1 Diagnostics Port using RS-232............................................................................................................3-49
3.14.3.2 Diagnostics Port using RS-422............................................................................................................3-50
3.14.3.3 TBOS Protocol and Map........................................................................................................................3-51
3.14.4 AUX DATA (Digital Service Channel) Connection.................................................................................3-53
3.14.5 Protect Port Connection (Preliminary Information).............................................................................3-56
3.14.6 Protect Port Connection (Preliminary Information).............................................................................3-57
4. TROUBLESHOOTING.....................................................................................................................................................4-1
4.1 REGULAR MAINTENANCE.............................................................................................................................................4-1
4.2 CHANGING FREQUENCY PLANS................................................................................................................................4-2
4.3 USING A SPARE TERMINAL..........................................................................................................................................4-3
4.4 TECHNICAL SUPPORT ...................................................................................................................................................4-4
4.5 REPAIR POLICY .............................................................................................................................................................4-5
4.6 FRONT PANEL STATUS LEDS....................................................................................................................................4-6
4.6.1 DATA LOSS Alarms.......................................................................................................................................4-7
4.6.2 BER (Bit Error Rate) Alarm...........................................................................................................................4-9
4.6.3 RX SYNC (Receiver Synchronization) Alarm.......................................................................................4-12
4.6.4 AIS OUT (Alarm Indication Signal).........................................................................................................4-13
4.6.5 FAN Alarm......................................................................................................................................................4-14
4.6.6 RADIO FAIL Alarm.......................................................................................................................................4-15
4.6.7 FAR END Alarm............................................................................................................................................4-16
4.7 ERRORS IN THE DATA STREAM................................................................................................................................4-17
4.8 INTERFERENCE COUNTERMEASURES.........................................................................................................................4-19
4.8.1 Use of a Spectrum Analyzer to Evaluate Potential Interference....................................................4-21
4.9 BACK-TO-BACK TESTING ..........................................................................................................................................4-22
4.10 BER (BIT ERROR RATE) TESTING...........................................................................................................................4-24
5. APPENDICES.....................................................................................................................................................................5-1