User's Manual

Troubleshooting Alarms
FlexWave Prism Host, Remote and EMS 5.1 System Reference Page 269
ADCP-77-073 • Issue 2 • 11/2009 © 2009 ADC Telecommunications, Inc.
RmtLPALoopFault
Major The feedback loop
inside the LPA is not
working. Causes RF
mute
Lower DART(s)
remote gain by 10dB,
reset the LPA, then
return gain to values
previously
configured. If fault
persists, replace RF
Module.
RmtLPALowPowerFault
Major Internal low power
fault state of linear
power amplifier (the
gain of one or more
internal amplifiers
does not meet
specification).
Causes RF mute
Reset LPA. If error
persists, consult
ADC, replace RF
Module
RmtLPAOverPowerFault
Internal over power
fault state of linear
power amplifier
(power level is high
enough to damage
LPA)
Reduce FWD gain,
reset the LPA, and
then monitor power
levels. Adjust gain to
acceptable values.
Reset LPA. If error
persists, consult
ADC, replace RF
Module
RmtLPAVswrFault
Major Internal VSWR fault
state of linear power
amplifier (greater
than 3:1). Causes RF
mute
Reset LPA. If error
persists, consult
ADC, replace RF
Module
RmtMajorExtAlarmInputFault
Major External major alarm
contact input
Not used
RmtMinorExtAlarmInputFault
ALARM-
TYPE
(Minor,
OK)
External minor alarm
contact input
Not used
RmtModuleMissingFault
Major One of the pluggable
modules is missing
on the Remote
Replace or
decommission the
missing module
Table 11-1. EMS Alarm Descriptions and Corrective Actions (Cont.)
Alarm Name Alarm
Severity
Level
Description Action