Reference Manual
Table Of Contents
- RBS 2206 Reference Manual
- Contents
- Preface
- Product Safety Requirements RBS 2000
- Environmental Capabilities
- Scope
- Terminology
- References
- Transport -40 C - +70 C
- Storage -25 C - +55 C
- Handling -40 C - +70 C
- Operation Indoor +5 C - +40 C
- Operation Outdoor -33 C - +40 C
- Operation Outdoor -33 C - +45 C
- Operation Outdoor -33 C - +55 C
- Operation Mast Mounted Equipment -33 C - +45 C
- Operation Mast Mounted Equipment -33 C - +55 C
- Radio Configurations, RBS 2206
- Product Data
- Unit Description, DXU-21
- Unit Description, dTRU
- Unit Decription, CDU-G and CDU-F
- Unit Description, CXU-10
- Unit Description, FCU-01
- Unit Description, DC-Filter 01
- Unit Description, PSU 1200 W
- Unit Description, ACCU/DCCU
- Unit Description, IDM
- Broadcast
- Common Control Channel Handling
- Physical Channel Handling
- Speech and Data Services
- Packet Data Services
- Call Control
- References
- Channel Activation
- Adaptive Frame Alignment
- Asynchronous Handover Detection
- RF Channel Release
- Deactivate SACCH
- Link Establish Indication
- Link Release Indication
- Link Establishment Request
- Link Release Request
- Transparent Message Transmission
- Transparent Message Reception
- SACCH Info Modify
- LAPDm
- Channel Reactivation
- Power Information
- GPRS, Physical Link Layer
- Base Station Power Control
- Channel Measurements
- Discontinuous Transmission
- Frequency Hopping
- Encryption
- Mode Modify
- Mobile Station Power Control
- Short Message Service
- Diversity Supervision
- Synchronization
- Radio Reception
- Radio Transmission
- Frequency Allocation Support
- Restart and Recovery
- Function Change
- Functionality Administration
- Operation and Maintenance Support
- References
- Concepts
- Buttons
- Change RU to Local Mode
- Change RU to Remote Mode
- Change RU to Remote Mode Cancel
- Change SW Power Boost Slave RU to Local Mode
- Loop Control
- RF Loop Test Supervision
- Calendar Time Request
- RSSI Temperature Compensation
- Max Cooling
- Fault Indicator
- BS Fault Indicator
- Operational Indicator
- Tx Not Enabled Indicator
- Local Mode Indicator
- External Alarms Indicator
- DC Disconnected Indicator
- Battery Mode Indicator
- Bat Disconnected Indicator
- AC Fault Indicator
- Test Result Indicators (not used)
- Local Mode in Progress
- Installation Data Handling
- Self Test and Supervision
- Diagnostics and Fault Handling
- Operation and Maintenance Terminal
- External Alarms
- Handling of Auxiliary Equipment
- Climate Protection
- EMC Capabilities
- Transmission Interface Handling G.703 2048 kbit/s
- Transmission Interface Handling DS1 1544 kbit/s
- Terrestrial Link Handling
- Channel Distribution Function
- Transport network O&M functions-DXX Support
- BTS Parameter Limitations
- Glossary
Unit Decription, CDU-G and CDU-F
8 Unit Decription, CDU-G and CDU-F
This chapter describes the CDU-F and CDU-G for RBS 2206. The
Combining and Distribution Unit (CDU) is the interface between
Transceivers (TRUs) and the antenna system. The CDU enables several
TRUs to share antennas.
A range of CDU types have been developed to support different
configurations. Information about which configurations can be built
with the various types of CDU is contained in chapter Radio
Configurations, RBS 2206.
The CDUs can handle GMSK and EDGE.
8.1 CDU Types
A range of CDU types is available. The choice depends on present and
future capacity requirements. These factors are considered when
selecting CDU type: initial cost, capacity requirements (present and
future), number of antennas and frequency hopping capability.
•
CDU-G handles one or two dTRUs. Connected to one dTRU, it
provides a low capacity, high output power configuration.
Connected to two dTRUs, it provides a high capacity, low output
power configuration. CDU-G supports both synthesiser and
baseband frequency hopping.
•
CDU-F handles one to six dTRUs. CDU-F is a high capacity,
medium output power configuration that only supports baseband
frequency hopping.
8.1.1 CDU-G
CDU-G
900
CDU busCDU bus
D
C
in
TX
1
TX
2
P007448A
RX1
RX2
Fault
Oper.
Figure 68 CDU-G
EN/LZT 720 0008 R1A
2001-06-26
129 (421)
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