Reference Manual Part 1

RBS 2106
BFU-22
The Battery Fuse Unit (BFU-22) supervises the connection or disconnection
of the batteries.
Number of units: 1
Climate Unit
The climate unit maintains the internal temperature and humidity inside the
cabinet. The climate unit is mounted in the door of the cabinet.
Two types of climate unit are available:
• Combined Climate Unit. This unit provides both heating and refrigeration.
• Heat Exchanger climate unit. This provides heating and cooling through
forced convection. It has no refrigerating capacity; thus the cabinet cannot
be cooled to a temperature lower than that of the outside (ambient)
temperature.
Number of units: 1
CDU
The Combining and Distribution Unit (CDU) is the interface between
the transceivers and the antenna system. All signals are filtered before
transmission and after reception by means of bandpass filters. The CDU
allows several dTRUs to share antennas. There are a maximum of three CDUs
in one RBS 2106.
The CDU combines transmitted signals from several transceivers, and
distributes the received signal to several transceivers. The CDU supports
EDGE. Two different CDU types are used in the RBS 2106 to support all
configurations:
• CDU-F is a filter combiner intended for high capacity solutions. Baseband
only.
• CDU-G can be configured either for high capacity or for high coverage. It
is a combiner that can be used for synthesizer hopping. Baseband and
Synthesizer hopping only.
Number of units: 1 – 3
16 (36)
E
N/LZT 720 0222 Uen R6A