Manual Part 5

CXU-10
CDU
bus
Power-
supply
CXU
RX1_TRU1
RX2_TRU1
RX1_TRU2
RX2_TRU2
RX1_TRU3
RX2_TRU3
RX1_TRU4
RX2_TRU4
RX1_TRU5
RX2_TRU5
RX1_TRU6
RX2_TRU6
RX2_CDU3
RX1_CDU3
RX2_CDU2
RX1_CDU2
RX2_CDU1
RX1_CDU1
P007459A
Figure 1 B lock Diagram of the CXU-10
4.1 Functions
The CXU has six different switches. B y setting the switches in different
posi tions, the CXU can be configured to connect radio signals from a specific
CDU to a specific RX input on a dTRU.
The CXU i s also connected to a CDU bus. By sending data through the CDU
bus, the switches can be set to fulfil the supported configurations.
The unit contains splitters for distribution of incoming RX signals to the switches
and in some cases directly to an output.
The R F cables betwe en the CDU and CXU, and the CXU and dTRU, are
supervised by t he CXU.
4 (6)
E
N/LZT 720 0240 Uen R2A