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
Configuration Switch Unit (CXU)
The task of the CXU is to cross-connect the CDU and the dTRU in the
receiver path. The CXU makes it possible to expand or reconfigure a
cabinet without moving or replacing any RX cables.
The RX inputs/outputs on the dTRU and the CDU are placed in such
positions that they minimize the amount of cable types for connecting
the CXU with the dTRUs and the CDUs.
The CXU is configured by means of software.
Power Supply Unit (PSU)
The RBS 2206 contains up to four Power Supply Units (PSU). The
PSUs are available in two versions, PSU AC for connection to AC
mains, or PSU DC for connection to -48 or -60 V DC power supply.
The PSU AC converts 120-250 V to regulated +24 V DC. The PSU DC
converts -(48 - 60) V DC to regulated +24 V DC.
Cooling System
The cooling system uses forced air. The air inlet is the perforated door
and the outlet is on the roof.
The cooling system consists of four fans and a Fan Control Unit (FCU)
that controls the fan speed. The FCU is controlled by the DXU. When
the cabinet is not fully equiped, RU dummies are needed to ensure that
the cooling system works properly.
The fans are positioned between the CDU subrack and the roof, giving
a common suction area. They draw the air through three separate
channels around the RUs.
Internal Distribution Module (IDM)
The IDM is a panel for distributing the internal +24 V DC power to the
various units. Each distribution circuit in the cabinet is connected to a
circuit breaker in the IDM.
AC Connection Unit/DC Connection Unit (ACCU/DCCU)
The ACCU/DCCU handles distribution and connection/disconnection of
the incoming power supply voltages to the PSUs. The connection/dis-
connections are performed by the main switch. The units also contain
filter equipment.
DC Filter Unit
The DC filter unit is the interface for +24 V DC power supply or
battery back-up.
Space for Optional Expansion (OXU)
There are four positions available for optional RUs in the DXU/PSU
subrack, for example for TMA-CM and DXX. One 19-inch OXU-
position is also available between the CXU and the dTRU subrack.
86 (421)
EN/LZT 720 0008 R1A
2001-06-26
© Ericsson Radio Systems AB
— All Rights Reserved —