NEC Univerge SV8100 System Maintenance Manual page 27

UNIVERGE SV8100
heck LED.
C CD-4COTB
CD-4COTB
LED Status?
On
Have Telco check
Line circuit(s).
System Maintenance Manual
Call Dropping
See if problem exists
on all Lines.
No
dropped on
all lines?
Check outside line key
after call drops.
On Off
CO
Line Key
LED Status?
Off
1. Perform Second Initialization.
If trouble persists go to step 2.
2. Replace
Return Defective blade
for repair.
C2
Yes
Calls
All
No
lines at same
time?
Have Telco check line circuits.
Increase Automatic Release
Signal Detection Time. Refer to
PRG 14-02-09.
CD-4COTB. Test.
No
Problem
Solved?
Yes
Issue 1.0
Yes
Check DC voltages with
a meter and AC power
with a line disturbance
analyzer.
Perform First Initialization.
Replace CD-CP00-US, and
test system using default
program.
2 - 9