Alcatel-Lucent 1643 AMS Operation Manual page 344

Access multiplexer and access multiplexer small (formerly metropolis am and metropolis ams. release 1.0 through 7.2. alarm messages and trouble clearing guide
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Alarm messages
X21 interface interface not expected input signal
...................................................................................................................................................................................................................................
Alarm identifier
Information
Alarm category
ASAP
Alarm severity
(default setting)
Reporting state
(default setting)
Local indications
Cause
Actions
...................................................................................................................................................................................................................................
1-324
X21cNES
An incoming signal has been detected on an X.21 interface port although the
port is provisioned "Not Monitored".
Transmission
ethPS
Information
Not Reported
There are two possible reasons:
1. Either the port is intentionally not in use, and therefore is provisioned "Not
Monitored", but mistakenly an input signal is applied (due to erroneous
routing of intermediate cabling for example), or
2. although an input signal is applied, the port is mistakenly provisioned "Not
Monitored".
Put the X.21 interface port "Monitored", or check the cabling (and re-arrange
if necessary).
Alcatel-Lucent - Proprietary
See notice on first page
365-312-803R7.2
Issue 4, May 2007

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