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
Board and Unit Descriptions
Cabling between boards and units is found on page 5-27.
DC - Directional Coupler
The BS and MS directional couplers, see Figure 5-9, are identical for all
repeaters except for the high power CDMA repeaters, which has BS and
MS directional couplers depiced in Figure 5-10 (BS) and Figure 5-11 (MS).
Connection
DC/MS:
Port Connected to
DPX ANT on the DPX/MS duplex filter.
TEST –30dB Test port for the downlink output signal. This port has
no directivity.
MS –20dB Not used.
MRX DC-BS on the MRX unit (high power CDMA only).
ANT MS antenna.
DC/BS:
Port Connected to
DPX ANT on the DPX/BS duplex filter.
TEST –30dB Test port for the uplink output signal. This port has no
directivity.
MS –20dB Mobile station antenna connection for remote control.
This port has at least 20dB directivity towards the
antenna.
MRX DC-MS on the MRX unit (high power CDMA only).
ANT BS antenna.
MS
DPX
ANT
TEST
DC
-30 dB
-20 dB
Figure 5-9. MS and
BS directional coupler
MRX
DPX
ANT
TEST
DC
-30 dB
MS
-20 dB
Figure 5-10. BS
directional coupler,
high power CDMA
MRX
DPX
ANT
TEST
DC
-30 dB
Figure 5-11. MS
directional coupler,
high power CDMA
ALLGON System AB AR Repeaters Functional Description
User’s Manual VD203 66/EN Rev. P1A 2000-09 5 - 17