Adva FSP 3000R7 - LOF-MUX (MUX-Loss of Frame)

Standing Conditions
LOF-MUX (MUX-Loss of Frame)
The corresponding SNMP name for this condition is “lossOfFrameMux”.
AIDTYPE Default
Severity
Probable Cause Suggested Corrective Action
CH CR The demultiplexer
is unable to lock
onto the framing
pattern in one or
both of the
multiplexed signals
within the incoming
signal.
The most likely
causes of this
condition are a
degraded F2488
signal, a failure of
the upstream
equipment
originating the
signal, or a failure
of the payload
signal prior to the
aggregation point at
the far-end.
1 Verify that the facility is
provisioned correctly.
2 Verify that the incoming cable is
the correct cable and that the
transmit and receive ports are
connected to their proper
respective portions of the cable
(i.e. that the fibers are not
swapped between transmit and
receive or that a crossover cable
has not been used in place of a
straight cable for electrical
Ethernet connections).
3 Verify that the incoming cable
(electrical or optical) is firmly
connected to the receive port
associated with the facility and
that the connector is not physically
impaired by obstructions, dirt or
component damage. Clean the
connector or replace the cable,
plug or module, as appropriate,
depending upon the cause
determined from the physical
examination.
4 Verify that a signal is present at
the cable termination and that the
signal conforms to the required
specifications (e.g. minimum and
maximum power levels). If the
signal meets the required
specifications proceed to the next
step below, otherwise locate the
source of the signal problem
upstream and repair the problem.
5 Replace the plug or module
supporting the facility.
Table 251: LOF-MUX (Standing Condition)
FSP 3000R7 Maintenance and Troubleshooting Manual - Product Release 16.2 - Document Issue A 873