Maintenance Description
9-22 Issue 8.0 July 2002
incoming OC-48 LOF An OC-48 loss-of-frame (LOF) condition has
been detected on an incoming OC-48 line.
Likely cause: Failure of an upstream
TRMTR or REGENR circuit pack or local
RCVR.
incoming OC-48 LOS An OC-48 loss-of-signal (LOS) condition has
been detected on an incoming OC-48 line.
Likely causes: Failure of an upstream
TRMTRorREGENRcircuitpack,the
incoming OC-48 line (receive fiber), or the
local RCVR circuit pack.
incoming OC48 LOS/LOF An OC-48 loss-of-signal (LOS) and/or
loss-of-frame (LOF) condition has been
detected on an incoming OC-48 line.
Likely causes: Failure of an upstream
TRMTRorREGENRcircuitpack,the
incoming OC-48 line (receive fiber), or the
local RCVR circuit pack.
incoming OC-48 SD A signal degrade (SD) condition has been
detected on an incoming OC-48 line. The
line parity error rate threshold setting has
been exceeded (10
-5
through 10
-9
with an
original value of 10
-6
).
Likely causes: Failure of the upstream
TRMTRorREGENRcircuitpack,orthe
local RCVR circuit pack.
incoming OC-48 SF A signal failure (SF) condition has been
detected on an incoming OC-48 line.
Likely causes: Failure of the upstream
TRMTRorREGENRcircuitpack,orthe
local RCVR circuit pack.
incoming sync ref failure A failure of the incoming synchronization
reference has been detected.
Likely causes: Failure of a synchronization
reference (signal source).
inhibit alarms-office alarms Alarm reporting via the office alarms
interface is disabled.
inhibit alarms-parallel telemetry Alarm reporting via the parallel telemetry
interface is disabled.
inhibit alarms-X.25 Alarm reporting via the X.25 (TL1) interface
is disabled.
Table 9-2. Condition Descriptions (Contd)
Description (from Retrieve-Alarm Report) Meaning
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