User Manual
Table Of Contents
- Contents
- 1 Introduction
- 2 Product Safety Requirements RBS 2000
- 3 Environmental Capabilities
- 3.1 Scope
- 3.2 Terminology
- 3.3 References
- 3.4 Transport -40 C – +70 C
- 3.5 Storage -25 C – +55 C
- 3.6 Handling -40 C – +70 C
- 3.7 Operation Indoor +5 C – +40 C
- 3.8 Operation Outdoor -33 C – +40 C
- 3.9 Operation Outdoor -33 C – +45 C
- 3.10 Operation Outdoor -33 C – +55 C
- 3.11 Operation Mast-Mounted Equipment -33 C – +45 C
- 3.12 Operation Mast-Mounted Equipment -40 C – +55 C
- 4 Climate Protection
- 5 EMC Capabilities
- RBS 2101, Product Description
- RBS 2102, Product Description
- RBS 2103, Product Description
- RBS 2202, Product Description
- RBS 2101, 2102, 2103 & 2202 Radio Configurations
- RBS 2202 Antenna Configurations
- ACCU Description
- BFU Description
- CDU-A Description
- CDU-C Description
- CDU-C+ Description
- CDU-D Description
- DXU Description
- DXU-21 Description
- ECU Description
- PSU -48 V Description
- PSU 230 V Description
- sTRU Single Transceiver Unit Description
- V3 Climate Unit Description
- Glossary
CDU-CCombining and Distribution Unit
TX1
TX Ant
TX2
Circ.
Circ.
Hybrid
comb.
MCU
RX 1
RX 2
RX 3
RX 4
RX 5
RX 6
HL OUT
HL IN
TXBP
P010162A
Splitter
Splitter
RX Ant
RXBPRXDA
Bias
injector
DC
Split-2
Figure 2 Block Diagram for CDU-C without Duplexer (GSM 1800 and
GSM 1900)
4.1 TX Part
The TX part handles the transmission of signals from the TRUs to the antenna.
The TX part consists of:
• Two circulators
• A hybrid combiner
• One TX Band-Pass filter (TXBP) (GSM1800/GSM1900 version)
• A duplex filter (duplexer) (GSM 900 version only)
• A measurement coupler unit (MCU)
Circulator
The circulator provides a uni-directional transmission
path and protects the transmitter inputs from reflected
signals.
6 (10)
EN/LZT 720 0277 Uen R1A