NEC Univerge sv8500 Manual page 2731

(5) Diagnostic from system message
START
On the DLI/DAI card indicated as faulty, flip its
MB Switch to DOWN → UP →DOWN.
After System Message "13-N"/"13-O" Digital
Line Failure has been indicated, "13-P" is being
indicated.
The message detail data of System Message "13-
N" is indicating "14: Remote Office Alarm De-
tected", and RMT lamp on the DLI/DAI card
lights.
The message detail data of System Message "13-
N" is indicating "05: Signal Link Down Detect-
ed", and LINK Lamp (red) on the DLI/DAI card
does not light.
The message detail data of System Message "13-
N" / "13-O" is indicating the following data, and
the PCM Lamp (red), FRM Lamp (red), MFRM
Lamp (red), or CRC Lamp (red) lights.
• System Message "13-N"
"17: Frame Loss PCM Down (Continuous)"
"18: Multi-Frame Loss (Continuous)"
• System Message "13-O"
"07: Frame loss PCM Down (Continuous)"
"08: Multi-Frame Loss (Continuous)"
END
CHAPTER 2
FAULT SUPERVISION
The remote office DRU/DAU in the DLI/DAI
card or the transmission equipment has detected
a fault, and an alarm is being sent. Test the DRU/
DAU or the transmission equipment.
A signal link between the DLI/DAI and the DRU/
DAU is not established. Referring to Section
7.9.7: Fault Diagnosis by Loop-Back Test, per-
form diagnosis.
PCM Down, Frame Loss, Multi-Frame Loss, or
CRC Error has occurred. Referring to FAULT
DIAGNOSIS BY LOOP-BACK TEST, perform
diagnosis.
VOL.3-244
TERMINAL-RELATED DEVICES