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
Product Data
OVP for External Alarm
It is possible to connect 16 external alarms to the DF. Each alarm
connection is provided with over-voltage protection. (One OVP module
protects two alarm connections.)
PCM Overvoltage Module
This module contains overvoltage protection for the PCM lines.
If the PCM lines are terminated in equipment outside the RBS
equipment room, these lines must be protected by overvoltage
protectors (OVP) in the DF. Failure to do so might damage the
DXU-21, if a voltage transient is transported along the cable.
RBS 2206 is designed for 100/120
balanced (twisted pair) cable. If
75
unbalanced (coaxial) cable is to be connected, the module must
contain a balun card that converts 75
unbalanced to 100/120
balanced line.
A by-pass relay card can be installed in the module to bypass the
transmission network during power failure.
Distribution Module
This unit supervises the OVP and controls the by-pass relay if by-pass
relay is used. It can also distribute +24 V DC to external transmission
equipment.
Earthing
The DF is provided with a short earth cable which is to be connected to
the earth collection bar. The DF must be placed close to the earth
collection bar, therefore the earth cable must not be extended.
5.5.2 Transmission Adapter (Optional)
P008218A
Figure 36 Transmission adapter (TA)
The Transmission Adapter (TA) is a unit that contains a balun
(balanced/unbalanced transformer) for transforming 75
unbalanced to
120
balanced cable. It is provided with two BNC connectors for
connection of the 75
coaxial cable.
It is intended for mounting directly on the transmission link connector
(G-703) on the cabinet’s connection field, see Figure 32 on page 91.
94 (421)
EN/LZT 720 0008 R1A
2001-06-26
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