Cisco Prisma II Installation And Operation Manual page 93

Troubleshooting Alarm Conditions
Alarm Conditions
If the red ALARM indicator is illuminated or is blinking, check the display on the
front panel to determine the cause of the alarm.
Alarm
PIndBm1 Optical input 1
PIndBm2 Optical input 2
Module
TempC
Temperature
PsOk Bus voltage
status
5-4
Function Possible Causes
Broken fiber
Transmitter failure
Ambient
temperature is too
high due to:
• Air conditioner
malfunction.
Airflow through
•
the rack
restricted or cut
off.
• Fan Tray cooling
fans are not
operating
properly.
Power supply faulty
Maintenance and Troubleshooting
Possible Solutions
Check fiber
Check Transmitter
Diagnose the problem and
repair or replace as needed.
Ensure the airflow system has
not been damaged or removed.
Repair or replace as needed.
Troubleshoot the fans.
Telephone Cisco Services for
help.
Check power supply
78-713378-01 Rev C