User's Manual

Table Of Contents
169
10 Fault Finding
If communication has been lost with the unit at the near end of the link then there may be a
hardware fault with the wiring, network or hardware. Go to the hardware section below. If
communication with the far end of the link is lost then go to the radio section below.
10.1 Hardware
If there are problems suspected with the link hardware the following procedure is
recommended.
The following diagram illustrates the main system connections:
Figure 108 - Main System Connections
10.1.1 Power
Check the power LED at each end of the link. If the power lights are illuminated go to the
Ethernet section below. If at either end they are not illuminated then
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check the Ethernet
LED.
If neither is illuminated then there is no voltage on the power wires to the ODU.
Check that the mains power is connected and switched on.
Check that the lamp illuminates if the ODU connector is disconnected at the PIDU Plus
(Remove the PIDU Plus cover).
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The power indicator LED should be continually illuminated.