User's Manual

Troubleshooting Alarms
Page 200 FlexWave Prism Element Management System 7.1 User Manual
©
2011 ADC Telecommunications, Inc ADCP-77-177 • Issue 1 • July 2011
Minor Alarms—PRU/URU SFPs
The following alarms apply to SFPs installed in a Prism Remote Unit (PRU) or in a
URH Remote Unit (URU).
Alarm: Optical RX High BER
Trap:
fwuRmtSERFOptRxBERFault
Alarm Code: AC81
Definition: High bit error rate (BER) detected by fiber optic receiver.
Threshold: 0.00001
Remedy: Check/repair optical overdrive conditions (Unit Information > View Optical
Ports). Ensure that fiber optic connections are clean. Check for kinks
or sharp bends in the fiber optic cable; replace fiber optic cable if
unable to correct any problems found.
Alarm: Optical Under Drive
Trap:
fwuRmtSERFOptUnderDriveFault
Alarm Code: AC85
Definition: SFP optical receive input power below specification.
Threshold: Threshold for IR is -1 dBm, and for LR is -27 dBm
Remedy: Check fiber optic cable for too much attenuation and/or dirty
connections. Check SFP type (wavelength or IR/LR) being used;
replace the SFP if it is the wrong type.
Remedy: Check for any major alarms (Alarms > View Current Alarms). Follow the
remedies for those alarms.
Minor Alarms—PRU or URU LPAs
The following alarms apply to LPAs installed in a Prism Remote Unit (PRU) or URH
Remote Unit (URU).
Alarm: LPA Over Temperature
Trap:
fwuRmtLPAHighTempFault
Alarm Code: AC106
Definition: PRU/URU LPA above operating limit.
Threshold: 89°C
Remedy: Check ambient temperature. Fix any temperature problems in the
area of the PRU/URU. Check the PRU/URU temperature. Replace fan
if it is faulty and correct any air flow problems around the PRU/URU.
Reset LPA. If the alarm persists, replace the RF Module.