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