CHAPTER 2 TROUBLESHOOTING
ā 220 ā NWA-008847-001 Rev.3.0
a6ch2001.fm
(3) If the trouble remains, replace the
trunk card.
(4) If not, there is a problem with the dis-
tant office.
(1) Trunk card
(2) FP card
(3) MP card
Call is dropped (This condition
excludes the Line Fault detected
within a system).
When the station user
flashes the switch-hook.
(1) System Data Programming for the
trunk: CM35 Y=16
The failure occurs sud-
denly.
(1) Disconnect the trunk from the line on
the MDF.
(2) Connect a test telephone set to the
line on the MDF, and check if the
failure reoccurs.
(3) If the failure recurs, there is a prob-
lem with the distant office.
(4) If not, replace the trunk card.
(1) Trunk card
(2) FP card
(3) MP card
A
B
REPLACE
CHECK
CHECK
REPLACE
OCTOBER/14/2005
FAULT DIAGNOSIS AND TROUBLESHOOTING
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