User's Manual

Alarms

FlexWave Prism Element Management System 7.1 User Manual Page 195

Major Alarms—PRU or URU LPA

The following alarms apply to LPAs installed in a Prism Remote Unit (PRU) or URH

Remote Unit (URU).

Alarm: LPA DC Fault

Trap:

fwuRmtLPADcFault

Alarm Code: AC109

Definition: PRU/URU Linear Power Amplifier (LPA) DC fault.

Remedy: Caused by internally detected problem with the LPA. Impact is loss

of RF service. Reset LPA. If alarm persists, replace the RF Module.

Alarm: LPA Disabled

Trap:

fwuRmtLPADisableFault

Alarm Code: AC105

Definition: PRU/URU Linear Power Amplifier (LPA) disabled due to an internally

detected problem. (VSWR, DC, Loop Fault, Low Power, or

Temperature High alarm).

Remedy: The LPA is disabled because of an internally detected problem.

Perform an LPA Reset. If the fault persists replace the RF Module.

Alarm: LPA Loop Fault

Trap:

fwuRmtLPALoopFault

Alarm Code: AC110

Definition: PRU/URU Linear Power Amplifier (LPA) Loop fault.

Remedy: Caused by internally detected problem with the LPA. Impact is loss

of RF service. Lower DART(s) gain by 10 dB, reset the LPA, and return

gain to previous value. If alarm persists, replace RF Module.

Alarm: LPA Low Power Fault

Trap:

fwuRmtLPALowPowerFault

Alarm Code: AC111

Definition: Internal Linear Power Amplifier (LPA) Low Power fault. Gain of one

or more internal amplifiers outside of specification).

Remedy: Caused by internally detected problem with the LPA. Impact is loss

of RF service. Reset LPA. If alarm persists, replace the RF Module.

Alarm: LPA Missing

Trap:

fwuRmtLPADetectFault

Alarm Code: AC112

Definition: Linear Power Amplifier (LPA) detection fault. LPA missing from PRU.

Remedy: Cause is faulty RF Module. Impact is loss of RF service. If alarm

persists, replace the RF Module.