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
Operation and Maintenance Support
will be measured continuously. The temperature level is then used for
update of the RSSI temperature compensation value. The RSSI
compensation value will not be updated more frequently than every
10th second.
38.12 Max Cooling
Purpose
To control the fans to make them perform their maximum available
cooling when certain supervised values have reached certain levels.
Preconditions and Initiation
Applicable for any operational state. The TMRU (TRU) mode could be
either Local or Remote. The function is initiated by the Internal
Configuration function in the Restart and Recovery sequence.
Description
After the initiation, the TDMRU (TRU) temperature as well as the
current transmitter maximum output power are continuously supervised.
This supervision is performed for each TDMRU (TRU). Depending on
the supervised values, the general fan speed regulation (see Climate
Protection Functionality) is superimposed by the Max Cooling function.
The Max Cooling function is carried out per cabinet. The Max Cooling
can have the following two states:
•
ON = Maximum Cooling
•
OFF = General Fan Speed regulation
Maximum Cooling means that the fans are controlled to perform their
maximum available cooling. General Fan Speed regulation means that
Maximum Cooling is switched off and the fans are controlled by a local
algorithm.
The Maximum Cooling states are calculated from the supervised entities
in the following way:
Max Cooling will have the state ON if at least one of the following
conditions is fulfilled:
• At least one of the supervised TDMRUs (TRUs) has a
temperature that exceeds the critical temperature (CT).
• The maximum output power of at least one transmitter is limited
because of overtemperature handling.
Max Cooling will have the state OFF if both of the following
conditions are fulfilled:
• All of the supervised TDMRUs (TRUs) have a temperature that is
a constant value lower than the critical temperature (CT).
• None of the transmitters has its maximum output power limited
because of overtemperature handling.
Max Cooling will control the fans in the following cases:
• At function initiation.
290 (421)
EN/LZT 720 0008 R1A
2001-06-26
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