NEC NEAX 2000 IPS System Manual page 438

LED INDICATION
LED
NORMAL
MRMT Off
AIS Off
Alarm Indications on 30DTI
FAULT CAUSE
On Multi Frame Align-
ment signals can-
not be sent to the
remote PBX
On Remote PBX is in
the local loopback
state
– 424 –
CHAPTER 5 OPERATION TEST
FAULT
ACTION
1 Confirm the switch setting on the
DTI card indicating an alarm.
2 Replace the DTI card not indicat-
ing an alarm, with a spare.
Check the switch settings of the remote
DTI card.
LOOPBACK TEST
NWA-008853-001 Rev.3.0
97ch5001.fm