User's Manual

Two Channel 400MHz Cell Enhancer
User Handbook
Handbook N.-50-128501HBK Issue No:-A
Date:-12/08/2005
Page:-
3 of 39
4.10.1 Description ........................................................................................................................................... 27
4.10.2 Drg. Nō. 17-003080, Generic Channel Module Block Diagram.......................................................... 28
4.11 12V Single Relay Board (80-008901) ........................................................................................................ 29
4.11.1 Description ........................................................................................................................................... 29
4.12 PP9 NiCad Backup Battery (96-000017) ................................................................................................. 29
4.13 15V Switch-Mode PSU (96-300054) .......................................................................................................... 30
4.13.1 Description ........................................................................................................................................... 30
4.13.2 Technical Specification......................................................................................................................... 30
4.14 MT2834ZDXK 56kBPS Modem (96-800003)........................................................................................... 30
4.14.1 Description ........................................................................................................................................... 30
5. INSTALLATION .............................................................................................................................31
5.1 Initial Installation Record.......................................................................................................................... 31
5.2 Antenna Installation & Gain Calculations ............................................................................................... 31
5.3 Antenna Isolation........................................................................................................................................ 32
5.4 General Remarks........................................................................................................................................ 33
5.5 Electrical Connections................................................................................................................................ 33
5.6 RF Connections........................................................................................................................................... 33
5.7 RS232 Setup ................................................................................................................................................ 33
6. MAINTENANCE .............................................................................................................................34
6.1 General Procedures .................................................................................................................................... 34
6.1.1 Quick Fault Checklist ............................................................................................................................... 34
6.1.2 Fault Finding............................................................................................................................................ 34
6.1.3 Downlink................................................................................................................................................... 35
6.1.4 Uplink ....................................................................................................................................................... 35
6.1.5 Fault repair............................................................................................................................................... 35
6.1.6 Checking service....................................................................................................................................... 36
6.1.7 Service Support......................................................................................................................................... 36
6.2 Tools & Test Equipment ............................................................................................................................ 36
6.3 Care of Modules.......................................................................................................................................... 37
6.3.1 General Comments ................................................................................................................................... 37
6.3.2 Module Removal (LNA’s, general procedure): ........................................................................................ 37
6.3.3 Module Replacement (general): ............................................................................................................... 37
6.3.4 Power Amplifiers ...................................................................................................................................... 37
6.3.5 Low Power Amplifier Replacement .......................................................................................................... 38
6.3.6 Module Transportation: ........................................................................................................................... 38
APPENDIX A INITIAL EQUIPMENT SET-UP CALCULATIONS.................................................39