Station Line Fault - NEC NEAX 2000 IPS Maintenance Manual

Station Line Fault

(1) At Calling Station
START
Side Tone cannot be heard.
Dial Tone is not returned.
The station telephone set is
DTMF type.
System does not receive
any digits dialed by the
station.
A
CHAPTER 2 TROUBLESHOOTING
FAULT DIAGNOSIS AND TROUBLESHOOTING
(1) On the MDF, connect a test telephone
CHECK
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
REPLACE
(2) Telephone set
(1) System Data Programming for DTMF
CHECK
Receiver: CM10/CM14, CM45 Y=0
NOTE:
(2) System Data Programming for the
station: CM10/CM14, CM12 Y=00
(1) MB switch on the FP card is set
CHECK
downward.
(2) "RUN" lamp on the FP or MP card is
flashing.
(1) FP card
REPLACE
(2) MP card
– 209 –
Addition of an RST requires a
system reset.
NWA-008847-001 Rev.3.0
a6ch2001.fm