Reference Manual Part 1

RBS 2206
P008165C
PSU
Base frame
Fans
FCU
ACCU or
DCCU
DC filter
Connection
field
IDM
CDU
DXU
dTRU
OXU (CXU/ASU/HCU)
Connection
field
OXU (TMA-CM/DXX)
Figure 7 Standard Hardware Units
ACCU-01
The AC Connection Unit (ACCU-01) connects, disconnects, and distributes the
incoming AC power supply to the PSUs and the climate unit. It consists of two
parts: a Connection Unit and a Distribution Unit.
Number of units: 0 – 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 2206.
The CDU combines transmitted signals from several transceivers, and
distributes the received signal to several transceivers. The CDU is
hardware-prepared to support EDGE. Two different CDU types are used in the
RBS 2206 to support all configurations:
• CDU-F is a filter combiner intended for high capacity solutions.
15 (28)
EN/LZT 720 0225 Uen R6A