EXPRESS DAS
Installation and Operations Manual
72
EXPRESS DAS Installation and Operations Manual – Version 2.2 November 2013
8.6
Connect ODU to BIU for Power and Signaling
The ODU(s) receives power and signaling from the BIU. Four power ports and eight RF ports (four input /
four output) are located at the back of the BIU for connecting up to four ODU(s). Unused RF ports should
be terminated. The BIU automatically recognizes the ODU(s) as they are connected.
1- Power off the BIU before connecting the ODU(s) and remove the protective panel from the back of the
BIU.
2- As shown in the figures below, connect the coaxial cables for downlink and uplink signaling from the
ODU(s) to the corresponding ports on the rear panel of the BIU.
For power supply and communication, connect the supplied connector cable from the ODU(s) to the
corresponding BIU port. The port numbers are printed in order. Connect ODU 1 to RF and Signal port 1,
and so on.
Figure 8
.
10 – BIU RF and Signaling Ports
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