CHAPTER 2 TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
NEAX2000 IVS
2
Maintenance Manual
ND-70926 (E), Issue 3.0
Page 121
STATION LINE FAULT
(1)
At Calling Station
Side Tone cannot be heard.
(1) On the MDF, connect a test
telephone set to the faulty station
line.
(2) If Side Tone can be heard, check
for trouble with the cabling and
telephone set.
(3) If no Side Tone, check for trouble
with wiring on the MDF and LC
card.
(1) LC card
(2) Telephone set
Dial Tone is not returned.
The station telephone
set is DTMF type.
(1) System Data Programming for
DTMF Receiver: CM10, CM45 Y=0
NOTE: Addition of an RST requires a
system reset.
(2) System Data Programming for the
station: CM10, CM12 YY=00
System does not
receive any digits
dialed by the station.
(1) MB switch on the FP card is set
downward.
(2) “RUN” lamp on the FP or MP card
is flashing.
(1) FP card
(2) MP card
START
A
CHECK
REPLACE
CHECK
CHECK
REPLACE
Summary of Contents for NEAX 2000IVS2
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