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PERCEPTIONeb,,
Tl/DS-1
SEPTEMBER 1991
* Check
strapping
options TB3. TB4
(Note 1).
- Check
S3 switches
(Note 1).
* Check
S4 - Sll
switches
(Note 1).
* Check
TPER
Program
for the
disabled
trunk
(Note 2).
YES
Perform
a loop back
test on the NDTU.
CHART NO. 5
FALT LED
NOTES:
1. The strapping
and dip
switch
options must be
set according
to defined
functionality
of the
system
(master,
slave)
and trunk circuit position
and type (TIE, CO, DID).
2 Disable and enable
the fau/ty circuits
via
TPER Program.
--
YES
+
- Reinstall the original
NDTU.
* Replace the LCCU.
i
NO
- Reinstall the original
- Replace the NTWU.
.
Call the
Service
Center
for assistance.
-17-
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