Cisco Cisco Prisma II EDR Receiver Installationsanleitung
Chapter 5 Maintenance and Troubleshooting
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Troubleshooting Alarm Conditions
Module 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
Function
Possible Causes
Possible Solutions
LasBias
Laser Bias Current
Failed
Automatic power control
circuit failure.
Call Cisco Services for
assistance.
LasTemp
Laser Temperature
High or Low
Laser temperature out of
specification. Laser could
be faulty.
Chassis air filter requires
changing.
Call Cisco Services for
assistance.
ModTemp Module Temperature
High or Low
Ambient temperature is too
high due to:
A failure in the building
air conditioning system.
Airflow through the rack
has been restricted or cut
off.
Prisma chassis cooling
fans are not operating
properly.
Ensure the airflow
system has not been
damaged or removed.
Repair or replace fan
tray as needed.
To troubleshoot the
To troubleshoot the
chassis cooling fans,
refer to Prisma II Chassis
Installation and
Operation Guide, part
number 713375.
InRF
RF Input Power
High or Low
RF source not
transmitting.
Faulty RF cables or
connections.
Check RF source and
cables and call
connections.
OutPwr
Optical Output Power
High or Low
Laser could be faulty.
Call Cisco Services for
assistance.