Alarm Management - NEC UPD98413 User Manual

3.4.3 Alarm management

(1) Alarm detection
When the µPD98413 detect the specific alarm, the corresponding alarm is detected automatically and
notified by the corresponding register bits. The detection alarm is as follow.
Detection Detect condition
alarm
OOF When LOS is detected.
LOF
Line AIS When LOS or LOF is detected.
Path AIS When LOS, LOF or Line AIS is detected.
OCD When LOS, LOF, Line AIS, LOP or Path AIS is detected.
LCD
(2) Protection of the alarm detection
When the µPD98413 detect the specific alarm, the mPD98413 is protected the alarm detection and
not detect corresponding alarm. And if the corresponding alarm is in detecting condition, that alarm is
terminated automatically. The protection and termination alarm is as follow.
Termination Terminate condition
alarm
Section TIM When LOS and OOF is detected.
Section TIU
Line RDI When LOS and LOF is detected
PSBF
LOP When LOS, LOF or Line AIS is detected.
Path RDI When LOS, LOF, Line AIS, LOP or Path AIS is detected.
Path PLM
Path UNEQ
Path TIM
Path TIU
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CHAPTER 3 FUNCTIONAL OUTLINE
PRELIMINARY
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