Alcatel-Lucent 1643 AMS Operation Manual page 74

Alarm messages
Ethernet interface Loss of input signal
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Alarm identifier
Information
Alarm category
ASAP
Alarm severity
(default setting)
Reporting state
(default setting)
Local indications
Cause
Actions
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1-54
LANcLOS
There is no incoming signal on the affected Ethernet interface (E/FE). This is
detected by the absence of transitions in the signal, that is, only zeros are
received.
Transmission
ethPS
Prompt
Reported
The red fault LED is flashing.
The green LED associated to the affected Ethernet interface is off.
Possible causes are:
•
Interconnecting cabling contacts have a problem.
•
Receiver fault in indicated unit.
•
Transmitter fault in the upstream equipment (not the transmission system).
•
Discontinuity in the intermediate cabling.
•
Erroneous routing of intermediate cabling.
Check connections between the indicated unit, the connecting panel, and the
Digital Distribution Frame (DDF).
Check upstream equipment (not part of the transmission system).
Check intermediate cabling.
Alcatel-Lucent - Proprietary
See notice on first page
365-312-803R7.2
Issue 4, May 2007