inc. (from DSX) DS1 LOF
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inc. (from DSX) DS1 LOF
The system has detected a loss-of-frame (LOF) condition in an
incoming DS1 signal. LOF is declared when an out-of-frame (OOF)
defect persists for 2.5 (0.5) seconds, except when AIS is present.
Alarm Data
Value/Meaning
Reported Alarm
Level(s)
Major (MJ), Minor (MN), Not Alarmed
Not Alarmed is the default level.
AID (type)
DS1 Port
Date
month/day/year that condition was detected
Time
hour:minute:second that condition was detected
Probable Cause
LOF
Effect on
Service
MJ, MN = SA or NSA
Not Alarmed = Standing Condition (SC)
Alarm Entity
Type
T1
Description
inc. (from DSX) DS1 LOF
Likely Cause
Interfacing customer equipment failed or was
removed. Interfacing customer equipment or the
local port may also be improperly configured.
Visible
indication
Lighted
CR/MJ
or
MN/ABN
LED on SYSCTL
faceplate and a flashing
FAULT
LED on the
alarmed circuit pack.
Action
Proceed to
Alarms, conditions, and error messages
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365-372-333 R2.1
Issue 4, June 2005
Lucent Technologies
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