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Maintenance
840 USE 106 00 January 2003 191
Failure of Fiber Link from Primary Transmit to Standby Receiver
Fiber Optic Cable Replace the cable and restart the controller. The unit should return to Standby
mode. If it does not, cycle the power on the Standby unit.
If the cable has been connected improperly (i.e., the transmit port of the Primary is
linked to the transmit on the Standby), two error patterns are possible.
If the program has already been loaded in the Standby controller and both
controllers are running, then the Ready and Com Err indicators light on the
Standby CHS 110 module.
If the program has not yet been loaded in the Standby and you attempt to load it
using the program update procedure, then the Ready indicator lights and the
Standby blinks.
If both fiber links fail, the Com Err indicator lights on the Standby CHS 110. Again,
replace the cable and restart the controller. The unit should return to Standby mode.
If it does not, cycle the power on the Standby unit.