Line/Tie Line Fault - NEC NEAX 2000 IVS2 Maintenance Manual

CHAPTER 2 TROUBLESHOOTING
Fault Diagnosis and Troubleshooting
C.O. LINE/TIE LINE FAULT
(1) On Outgoing Call
START
After dialing the trunk access
code, tone (Reorder Tone) is
returned.
"BL" Lamp on the trunk
card is flashing.
"BL" Lamp on the trunk
card is on.
No Lamp indication on
the trunk card.
A
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(1) Make Busy Data (CME5) of the
CHECK
trunk.
(2) System Data programming for the
trunk: CM10
(1) Disconnect the trunk from the line
CHECK
on the MDF.
(2) If the lamp goes out, there is a
problem with the Central Office/
Distant Office or Cable.
(3) If not, check for a problem with
wiring on the MDF or the trunk
card.
(1) Trunk card
REPLACE
(1) System Data Programming for the
CHECK
station restriction service class:
CM12 YY=01
2
NEAX2000 IVS Maintenance Manual
ND-70926 (E), Issue 3.0