This attribute displays whether a Remote Alarm Indication (RAI)
alarm state has been entered. A RAI alarm state is entered when far-
end SEF/AIS defects (or Far-End Receive Failure (FERF) defects in
G.832 E3 Framing mode) have been observed and accumulated for
a period of 2.5 seconds +/- 0.5 seconds on the E3 incoming 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 E3 component goes into an operational state of disabled until
the RAI alarm condition is cleared. The condition is cleared when
the far-end defect indicator has not been detected for 10 seconds +/-
0.5 seconds. The declaration of a RAI Alarm is usually a signal that
the far end facility is unable to gain synchronization.
The rxRaiAlarm attribute is always set to off when the component
has been locked and left offline.