User Manual
Table Of Contents
- Front Page
- Pretext
- Contents
- Figures
- Abbreviations
- 1. Safety
- 2. Introduction
- 3. Installation
- 4. Commissioning
- 5. Functional Description
- Repeater Design
- Block Diagram
- Board and Unit Descriptions
- DC - Directional Coupler
- DPX - Duplex Filter
- LNA - Low Noise Amplifier
- CHA - Channel Amplifier Board for Channel Selective Operation
- CSA and PA Boards for Channel Selective CDMA Operation
- BSA and PA Boards for Band Selective Operation
- DIA Board
- CU Control Unit Board
- Repeater CU Software and Hardware Compatibility
- Cabling
- 6. Optionals
- 7. Repeater Alarms
- Index
- Questionnaire
Mains Breakdown Relay
To be able to distinguish PSU faults from power failure, a mains
breakdown relay must be used on the repeater mains supply.
The mains breakdown relay is not included in the repeater. So, it has to
be mounted outside the repeater chassis. The relay intended for this
purpose must fulfil the following specifications:
Relay specification
Closing time: max. 30 milliseconds
Insulation coil/contact: min. 4KV
Mains connected relay must be in compliance with valid local regulations.
Connection
• Connect a currentless closed relay contact to pin AI1 and AIC on the
P33 alarm connector see Figure 3-9. Alarm is initiated by short
circuiting pin AI1 and AIC in the P33 connector. The P33 alarm
connector is detailed on page 3-12.
• Connect the relay coil. It must be supplied from the same fuse as the
repeater.
• After commissioning, select the Mains breakdown option in the
Alarm Configuration dialog box described in the Alarm Configuration
section in Chapter 11.
P33
P33:AI
C
P33:AI1
Figure 3-9. Mains breakdown relay connection
Allgon Systems AB AR Repeaters Installation
User’s Manual VD203 66/EN Rev. P1A 2000-09 3 - 15