User's Manual
USU
USER MANUAL
DCM000000104
Printed: 03.05.21,10:40
Revision Date:5/21/03
14
Normal Operation
For both USU Head-End and Remote Modules ...
POWER / OPERATING - This LED will be GREEN when the Module is
operating.
LASER - This LED will light GREEN when any one of the Lasers are
operating.
F.O. Input - (Remote only) This LED will light GREEN when an Optical
Signal is received.
FAULT - If the internal diagnostics detect a problem, then this LED will light
Red.
Fault Indications
Each Module continuously performs internal diagnostics. If a problem is detected it
will activate its Red Fault LED and Fault Relay. Faults detected include...
• Over Temperature
• Misc. Internal Faults
Detailed Faults are detected by the optional Gateway Module. Details may also be
determined via an RS232 connected Terminal Emulator using the LIST command.
Operation