User's Manual

Weehawken Tunnel 900MHz Pager System
User/Maintenance Handbook
Handbook N.-Weehawken_900 Issue No:-A
Date:-05/08/05
Page:-
3 of 50
6.4.2 Switched Attenuators..................................................................................................................................... 30
6.5 Low Noise Amplifier (11-005902) .................................................................................................................. 31
6.5.1 Description....................................................................................................................................................31
6.5.2 Technical Specification ................................................................................................................................. 31
6.5.3 LNA ‘D’ Connector Pin-out details ..............................................................................................................31
6.6 Low Noise Amplifier (11-006702) .................................................................................................................. 32
6.6.1 Description....................................................................................................................................................32
6.6.2 Technical Specification ................................................................................................................................. 32
6.6.3 LNA ‘D’ Connector Pin-out details ..............................................................................................................32
6.7 20W Power Amplifier (12-018002) ................................................................................................................ 33
6.7.1 Description....................................................................................................................................................33
6.7.2 Technical Specification ................................................................................................................................. 33
6.7.3 PA 7-Way Connector Pin-outs ...................................................................................................................... 33
6.8 D.I.P Channel Control Module (17-002101) ................................................................................................. 34
6.8.1 Description....................................................................................................................................................34
6.8.2 Programming Procedure ..............................................................................................................................35
6.8.3 12.5kHz step size switch functions ................................................................................................................35
6.8.4 25kHz step size switch functions ...................................................................................................................36
6.8.5 Programming Example .................................................................................................................................36
6.8.6 17-002101 Controller Module DIP Switch Connector Data ........................................................................37
6.8.7 Drg. Nō. 17-002190, DIP Switch Module Controller Outline Drawing ....................................................... 38
6.9 Channel Selective Modules (17-003033, 17-009143, 17-009127 & 17-010803)........................................... 39
6.9.1 Description....................................................................................................................................................39
6.9.2 Drg. Nō. 17-003080, Generic Channel Module Block Diagram ..................................................................40
6.10 12 & 24V Relay Boards (20-001601 & 20-001602)....................................................................................... 41
6.10.1 Description ................................................................................................................................................ 41
6.10.2 Technical Specification ............................................................................................................................. 41
6.11 12 & 24V Single Relay Board (80-008901 & 80-008902).............................................................................42
6.11.1 Description ................................................................................................................................................ 42
6.12 JWS150-12/A PSU (96-300052)......................................................................................................................42
6.12.1 Description ................................................................................................................................................ 42
6.12.2 Technical Specification ............................................................................................................................. 42
7. INSTALLATION.................................................................................................................................43
7.1 General Remarks ............................................................................................................................................43
7.2 RF Connections ............................................................................................................................................... 44
7.3 Commissioning ................................................................................................................................................44
8. MAINTENANCE.................................................................................................................................45
8.1 Fault Finding ................................................................................................................................................... 45
8.1.1 Quick Fault Checklist.................................................................................................................................... 45
8.1.2 Fault Isolation...............................................................................................................................................45
8.1.3 Downlink .......................................................................................................................................................46
8.1.4 Uplink............................................................................................................................................................ 46
8.1.5 Checking service ........................................................................................................................................... 46
8.1.6 Fault repair ................................................................................................................................................... 47
8.1.7 Service Support ............................................................................................................................................. 47
8.2 Tools & Test Equipment................................................................................................................................. 47
8.3 Care of Modules .............................................................................................................................................. 48
8.3.1 General Comments........................................................................................................................................ 48
8.3.2 Module Removal (LNA’s, general procedure):.............................................................................................48
8.3.3 Module Replacement (general):.................................................................................................................... 48
8.3.4 Power Amplifiers...........................................................................................................................................48
8.3.5 Low Power Amplifier Replacement...............................................................................................................49
8.3.6 Module Transportation: ................................................................................................................................ 49
APPENDIX A INITIAL EQUIPMENT SET-UP CALCULATIONS ....................................................50