CHAPTER 2 TROUBLESHOOTING
– 216 – NWA-008847-001 Rev.3.0
a6ch2001.fm
(2) On Incoming Call
C.O. Incoming Call is not termi-
nated to ATTCON Station, DIT
or TAS Buzzer.
“BL” Lamp on the trunk
card is not turned on.
(1) Disconnect the trunk from the line
on the MDF.
(2) Connect a test telephone set to the
line on the MDF.
(3) If the telephone rings, check for
trouble with wiring on the MDF and
the trunk card.
(4) If not, there is a problem with the
distant office or the line.
(1) Trunk card
The “BL” Lamp is
turned on.
(1) System Data Programming for the
trunk
• In case of Termination to DIT sta-
tion: CM30 Y=02, 03, 04, 05, 13,
14, 17, CM35 Y=09
• In case of Termination to TAS
Buzzer: CM30 Y=02, 03
START
A
CHECK
MDF
TRUNK
To C.O. Line
Test Telephone Set
ATTCON
REPLACE
CHECK
FAULT DIAGNOSIS AND TROUBLESHOOTING
To Next Page
Loading...
