NEC Univerge sv8500 Manual page 1213

When the LEDs on MG-PRI/PRA remain the following status for a long time, a failure might occur in
STEP 7
the system. Make sure of the cables and the office data by using the listings below, and solve the prob-
lems.
LEDL
POWER
Pattern
1 ON BLINK
2 ON
3 ON
4 ON
5
ON
ON-
LINE-B LINE-D
LINE
ON OFF
OFF ON OFF
ON ON OFF
ON OFF BLINK
ON OFF OFF
LB
ON Initial settings related to IP has not been
completed.
ON Registration has not been completed.
ON Initial settings related to trunks have not
been completed.
OFF Layer 2 in ISDN was not able to be com-
pleted.
OFF D-Channel has not been specified yet.
VOL.2-960
MG-PRI/PRA
CAUSE