Lucent Technologies LambdaXtreme Alarm Messages And Trouble Clearing Manual page 75

Loss of Signal (LOS)
SUPVY Link Failures
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365-575-783R1.1
Issue 1, June 2002
Detection of the
OSC LOS (opposite direction to optical
will trigger
channels)
"Automatic Power Reduction (APR)"
SUPVY transmitting LOS
This alarm condition indicates a problem with the connectivity
between an OUT port on the SUPVY circuit pack and the IN_SUP
port of the corresponding RP circuit pack. The alarm is raised when
signal loss is detected at the IN_SUP port of the RP circuit pack. This
alarm is suppressed if either an RP or SUPVY circuit pack failure is
detected.
If
SUPVY transmitting LOS
will be raised at the SUPVY circuit pack in NE2, as
channel LOF
illustrated in Figure 2-1, "SUPVY Link Failures"
Incoming SUPVY channel LOS
This alarm condition indicates a problem with the connectivity
between an OUT_SUP port of the OA circuit pack and the IN port of
the SUPVY circuit pack. The alarm is raised when signal loss is
detected at the IN port of the SUPVY circuit pack. This alarm is
supressed if OSC LOS is detected or if an OA circuit pack fails
Incoming SUPVY channel LOF
This alarm condition is caused by any of the following scenarios:
•
SUPVY circuit pack failure at the transmitting NE (NE1 in
Figure 2-1, "SUPVY Link Failures"
•
Presence of
SUPVY transmitting LOS
•
Degradation of the OSC transmission in the outside plant or
degradation of SUVY signal between OA and SUPVY circuit
packs
This alarm condition is supressed if
to optical channels)
pack.
The following three conditions can trigger this alarm:
•
Poor transmission between the OUT_SUP port of the OA circuit
pack and the alarmed IN port of the SUPVY circuit pack..
•
Detection of
SUPVY transmitting LOS
•
Failure of the SUPVY circuit pack at the transmitting NE.
Lucent Technologies - Proprietary
See notice on first page
. See
APR active: line
for more information.
is detected at NE1,
(2-20))
at the transmitting NE
OSC LOS (opposite direction
is detected at the corresponding OA circuit
Maintenance
Chapter 3,
Incoming SUPVY
(2-20).
at the transmitting NE.
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