ADC Telecommunications Inc. PRSMAW4A 사용자 설명서

Troubleshooting Alarms

FlexWave Prism Host, Remote and EMS 5.1 System Reference

Page 269

ADCP-77-073

• Issue 2 • 11/2009

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