NEC UNIVERGE SV9100 System Maintenance Manual page 25

UNIVERGE SV9100
heck
C GCD-4COTB
GCD-4COT
B
LED Status?
On
Have Telco check
Line circuit(s).
System Maintenance Manual
No
Check outside line key
after call drops.
On
CO
LED.
Line Key
LED Status?
Off
1. Perform Second Initialization.
2. Replace GCD-4COTB. Test.
C2
Call Dropping
See if problem exists
on all Lines.
Yes
Calls
dropped on
all lines?
No
Off
Have Telco check line circuits.
Increase Automatic Release
Signal Detection Time. Refer to
PRG 14-02-09.
If trouble persists go to step 2.
Problem
Solved?
Yes
Return Defective blade
for repair.
All
Yes
lines at same
time?
Check DC voltages with
a meter and AC power
with a line disturbance
analyzer.
No
Perform First Initialization.
Replace GCD-CP10, and
test system using default
program.
Issue 1.0
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