User Manual
Table Of Contents
- 1. INTRODUCTION
- 1.1 Scope and Purpose of document
- 1.2 Limitation of Liability Notice
- 2. SAFETY CONSIDERATIONS
- 3. MASTER SITE RACKS (50-078001)
- 3.1 Master Site Description
- 3.P Master Site Rack Photos
- 3.2 Master Site Electrical Specification
- 3.3 Master Site Mechanical Specifications
- 3.4 Master Site Parts List (50-078001)
- 3.5 Channel Frequency Listing
- 3.6 Master Site Drawings
- 3.7 800MHz Air I/F + BSCE Uplink Shelf (50-078002)
- 3.8 800MHz 8Ch. Channel Module Sub-Rack (50-078003)
- 3.9 800MHz 40Watt Power Amplifier/Driver Shelf (50-078004)
- 3.10 VHF Simplex Shelf (50-078010/1)
- 3.11 VHF Simplex Shelf (50-078010/2)
- 3.12 VHF Duplex Shelves (50-078011/1-4)
- 3.13 VHF Air Interface Shelf (50-078012)
- 3.14 VHF Combiner Shelf (50-078013)
- 3.15 VHF PSU Shelf (50-078014)
- 3.16 VHF/800MHz Tx Multi-coupler (50-078015)
- 4. BAND SELECTIVE BI-DIRECTIONAL LINE AMPLIFIER
- 5. MASTER SITE UPGRADE
- 5.1 Master Site Upgrade Rack Assembly (50-078021)
- 5.1.1 Master Site Upgrade Rack Description
- 5.1.2 Master Site Upgrade Rack Electrical Specification
- 5.1.3 Master Site Upgrade Rack Mechanical Specification
- 5.1.6 Master Site Upgrade Rack Assembly (50-078021) Parts List
- 5.1.6a Upgrade Channel Module Shelf/Sub-Rack 50-078023 Parts List
- 5.1.7 Master Site Upgrade System Diagram, Drg. # 50-078081
- 5.2 Upgrade Channel Frequencies
- 5.3 Master Site HPA Interface Shelf (50-078005)
- 5.4 High Power Amplifier Shelf (50-146703)
- 5.1 Master Site Upgrade Rack Assembly (50-078021)
- 6. INSTALLATION
- 7. MAINTENANCE
- APPENDIX A
- APPENDIX B Initial Equipment Set-up Calculations
- APPENDIX C - BATTERY BACKUP
- C.1 GENERAL DESCRIPTION
- C.2. BATTERY BACKUP PHOTOGRAPHS
- C.3. SPECIFICATION
- C.4. GENERAL DRAWINGS
- C.5. BBU ALARMS & MONITORING SYSTEM
- C.6. INSTALLATION
- _
- C.7. MAINTENANCE
Mission Valley Radio Repeater Equipment + Upgrade
User/Maintenance Handbook
Handbook No. 50-078021HBKM Page 69 of 85
7.3.5 Low Power Amplifier Replacement
1 Disconnect the mains power supply and disconnect the 24V dc supply connector for the LPA.
2 Disconnect the RF input and output cables from the LPA.
3 Disconnect the alarm connector.
4 Remove the alarm monitoring wires from (D type connector) pins 9 and 10.
5 Remove the LPA module by removing the four retaining screws, replace with a new LPA
module and secure it with the screws.
6 Connect the RF cables to the LPA input and output connectors. Reconnect the wires to the
alarm board connector pins 9 and 10.
7 Reconnect the DC supply connector and turn the mains switch on.
Note: Tighten SMA connectors using only a dedicated SMA torque spanner. If SMA
connectors are over-tightened, irreparable damage will occur. . Do not use adjustable
pliers to loosen/tighten SMA connectors.
Also take care not to drop or knock the module as this can damage (or misalign in the case of
tuned passive modules) sensitive internal components. Always store the modules in an
environmentally friendly location
7.3.6 Module Transportation:
To maintain the operation, performance and reliability of any module it must be stored and
transported correctly. Any module not installed in a whole system must be kept in an anti-static bag or
container. These bags or containers are normally identified by being pink or black, and are often
marked with an ESD label. Any module sent back to AFL for investigation/repair must be so
protected. Please contact AFL’s quality department before returning a module.