Ethernet interface Loss of input signal
...................................................................................................................................................................................................................................
Alarm identifier
LANcLOS
Information
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.
Alarm category
Transmission
ASAP
ethPS
Alarm severity
(default setting)
Prompt
Reporting state
(default setting)
Reported
Local indications
The red fault LED is flashing.
The green LED associated to the affected Ethernet interface is off.
Cause
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.
Actions
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.
Alarm messages
...................................................................................................................................................................................................................................
1-54
Alcatel-Lucent - Proprietary
See notice on first page
365-312-803R7.2
Issue 4, May 2007
Summary of Contents for 1643 AM
Page 346: ......