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
CPU
MR
CDU bus
DC in
Prin1
Prin2
TX2-2
TX2-1
TX1-2
TX1-1
Prin1
Prin2
CNU
FC
TXLP
TXBP-DPX
MCU
RXBP-DPX
RXBP
TX/RX
RX
Pr1out
Pr2out
Pr1out
Pr2out
DC
CXU
RX2
RX1
TXin
LNA
Power supply
supervision
P007451A
TX2-1+TX2-2
TX1-1+TX1-2
Figure 71 Block diagram of CDU-F
The tuning of the filter cavities is controlled by a measurement receiver
and a CPU unit.
A small part of the output and reflected power is distributed by the
Measurement Coupler Unit (MCU) to four outputs. The signals are then
connected to the Measurement Receiver (MR). The MR used for
measuring can be the MR in the same CDU-F or the MR in another
CDU-F, depending on the configuration.
The MR measures the input signal to the filter combiners and also the
outgoing signal to the antenna. These two signals are used in the CPU
to control the stepper motors, one for each filter cavity. Moving parts in
the filter cavity, tune the combiner to the correct frequency.
8.2 CDU Functions
Table 81 CDU Functions
Function CDU-G CDU-F
Filter Combiner No Yes
Hybrid Combiner No
1)
No
Frequency Hopping
Baseband Hopping Yes Yes
Synthesizer Hopping Yes No
RF Filtering Yes Yes
RX preamplifier Yes Yes
Antenna system supervision and support Yes Yes
1)
Hybrid combiner is located outside the CDU.
132 (421)
EN/LZT 720 0008 R1A
2001-06-26
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