User Manual
Table Of Contents
- toc
- 1 Introduction
- 2 Product Overview
- 3 Dimensions
- Size and Weight
- Surface and Colour
- 4 Space Requirements
- Footprint
- 5 Environment
- 6 Hardware Units
- 7 Interfaces
- 7.1 External Connections
- Connections on DF
- Overvoltage Protection Modules in the RBS 2106i and RBS 2106 V3
- Overvoltage Arrestors for External Alarms in the RBS 2106
- Antenna Connections
- Other External Connections
- External Connections to TM
- Transport Network to TM
- 7.2 Test Interface
- 7.3 Operator Interface
- Indicators
- Buttons
- 8 Power System
- 8.1 Power Supply
- AC Mains Supply Voltage
- External Earth Fault Circuit Breakers
- Mains Fuses
- 8.2 Battery Backup
- Internal Battery Backup
- External Battery Backup
- 8.3 Output Power to TM
- 8.4 Power Consumption
- 9 Transmission
- Optional Transmission Equipment
- 10 External Alarms
- 11 Standards, Regulations and Dependability
PRELIMINARY
Hardware Units
The DXU is provided with four connections for transmission interfaces. It can
handle both 2,048 kbps (E1) and 1,544 kbps (T1) transmission interfaces. The
DXU has hardware support for EDGE on 12 TRXs.
DXU-21 is used in RBS 2106 and RBS 2106i. DXU-23 is used in RBS 2106 V3.
Number of units: 1
dTRU
The double Transceiver Unit (dTRU) contains two TRXs used to transmit and
receive two radio carriers.
It has a built-in combiner with the option to combine two TX signals into one TX
output. It is also prepared for four-branch RX diversity for further improvements
in sensitivity.
One version of the dTRU supports only GMSK and the other version supports
GMSK, 8-PSK, 16-QAM and 32-QAM.
Number of units: 1 – 6
FCU
RBS 2106 and RBS 2106i include a Fan Control Unit (FCU) that controls the
fans in the cooling system by regulating fan speed. The FCU is controlled
by the DXU.
RBS 2106 V3 does not include an FCU as a hardware. Instead the fans are
controlled directly from the DXU.
Number of units: 0 for RBS 2106 V3, 1 for RBS 2106 and RBS 2106i.
IDM
The Internal Distribution Module (IDM) distributes 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.
Number of units: 1
PSU
The Power Supply Unit (PSU) converts 120 – 250 V AC to regulated +24 V DC.
Number of units: 2 – 4
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129/1551-LZA 701 0001 Uen PF1 | 2010-10-08