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Description:
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mscLpDS3RxRaiAlarm OBJECT-TYPE
SYNTAX INTEGER {
on(0),
off(1) }
ACCESS read-only
STATUS mandatory
DESCRIPTION
"This attribute displays whether a Remote Alarm Indication (RAI)
alarm state has been entered.
When not running the C-Bit Parity mode, the RAI alarm state is
entered when the far-end SEF/AIS defect indicator has been
observed and accumulated for a period of 2.5 seconds +/- 0.5
seconds on the incoming DS3 line. If the RAI defects are
intermittently occurring, the RAI defect accumulator is
decremented at a rate of 1/10 of the incrementing rate (alarm
integration ratio of 1/10), with all measurements based on a 200 ms
polling cycle. The DS3 component goes into an operational state of
disabled until the RAI alarm condition is cleared. The condition is
cleared when the far-end SEF/AIS defect indicator has not been
detected for 10 seconds +/- 0.5 seconds.
When running the C-Bit Parity mode, the RAI alarm state is entered
upon detection of a far-end alarm over the Far-End Alarm and
Control (FEAC) channel. The RAI alarm state is exited as soon as
no more far-end alarm is detected on the FEAC channel. The far-
end alarms that can be detected on the FEAC channel and that cause
the RAI alarm state to be entered are: equipment failure alarm
(service affecting), LOS alarm, LOF alarm, idle and AIS alarm.
The rxRaiAlarm attribute is always set to off when the component
has been locked and left offline."
DEFVAL { off }
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