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
Transmission Interface Handling G.703 2048 kbit/s
01_0306A
RBS 2
PCM-A
PCM-B
PCM-A
PCM-B
Downstream Downstream
Mobile
Station
Downstream
Upstream
Upstream
RBS 1
BSC
Upstream
Upstream
Figure 104 Upstream and Downstream
For further information, see ITU-T G.704 White Book.
47.3 Functions
47.3.1 Layer 1 Termination 2048 kbit/s
The function is initiated during restart of DXU.
Layer 1 termination of the transport network interface is handled
according to /GSM:08.54:4.0.0/. This includes :
• Physical and electrical characteristics according to ITU-T rec.
G.703 (interface at 2048 kbit/s, 75 or 120 ohm selectable and
over-voltage protection according to Annex B)
• Frame structure according to ITU-T rec. G.704 section 2.3
(includes handling of the E-bit in timeslot 0)
• Frame alignment and CRC-4 procedures according to ITU-T rec.
G.706 section 4
• Synchronization of layer 1 handling is described in subsection
Section 47.3.2 on page 352.
• Detection of fault conditions, alarm states, and consequent actions.
This includes detection of:
− LOS (Loss Of Signal)
− LOF (Loss Of Frame alignment)
− ERATE (Error RATE)
− AIS (Alarm Indication Signal)
− RAI (Remote Alarm Indication)
The consequent actions are transmission of:
EN/LZT 720 0008 R1A
2001-06-26
351 (421)
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