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
Description 8 (37)
© Ericsson. Commercial in confidence Rev F 2001-07-17 LRN/X-99:083
Distribution Switch Unit (DXU)
The DXU provides a system interface to the 2 Mbit/s or 1.5 Mbit/s link and cross connects
individual time slots to certain transceivers. The DXU also extracts the synchronisation
information from the PCM link and generates a timing reference for the RBS.
The DXU supports LAPD Multiplexing, LAPD Concentration and the Multi Drop
functionality.
Figure 3. Front view of DXU-21.
The RBS 2206 is delivered with one DXU-21 per cabinet that has some powerful features:
• It is equipped with four transmission ports (E1/T1)
• It is hardware prepared for support of EDGE functionality on up to twelve transceivers.
• It will support a synchronised radio network with help of an interface to an external
GPS receiver.
• It will support the mobile positioning function with help of an interface to an external
LMU.
• It will consist of a single unit with a removable Flashcard, permitting a fast and simple
load of Installation DataBase (IDB) and RBS software in the RBS 2206.
• It is hardware prepared to support a “Site LAN” implementation with help of an
External O&M (EOM) bus. The EOM bus is designed as a standard Ethernet port.
• It supports TG synchronisation.
• It has built in ECU functionality.
Internal Distribution Module (IDM)
The IDM handles the distribution and fusing of the system voltage (+24 VDC) to the units
in the cabinet. There is a connector for connection of ESD bracelet and instrument
electrical earth on the IDM.