Cisco Prisma II 1310 nm HDTx Transmitters Installation Guide
5-4
Maintenance and Troubleshooting
78-748704-01 Rev C
Troubleshoot Alarm Conditions
Introduction
If the red ALARM indicator is illuminated or blinking, check the ICIM to determine
the cause of the alarm. Blinking = minor alarm, steady illumination = major alarm.
ICIM Alarm Conditions
The table below shows the alarm conditions and possible causes.
Alarm
Alarm Condition
Indication
Possible Cause
DCPower
Power supply indicates
a fault
Fault
Check power cord. Make sure
power supply is fully seated.
ProcTemp
Module Temperature
Fault
Check fan tray operation.
RdnInvld
Redundant mode
invalid
Invalid
Both receivers are configured
to Internal redundancy with
no master.
Rcv1Inst
Receiver 1 not present
Fault
Receiver 1 not present.
Rcv1Bias
(APD Rx only)
APD 1 bias incorrect
Fault
Re-seat receiver 1. Replace if
necessary.
Rcv1_LOS
Receiver 1 loss of signal
Fault
Check fiber line and data into
receiver 1.
Rcv1Data
Receiver 1 no data
Fault
Check fiber line into receiver.
Rcv2Inst
Receiver 1 not present
Fault
Receiver 2 not present.
Rcv2Bias (APD
Rx only)
APD 2 bias incorrect
Fault
Re-seat receiver 2. Replace if
necessary.
Rcv2_LOS
Receiver 2 loss of signal
Fault
Check fiber line and data into
receiver 2.
Rcv2Data
Receiver 2 no data
Fault
Check fiber line into receiver.