Lucent Technologies SLC 5 Series - Page 463

Conversions: DLP-507 363-205-401
Page 10 of 12 Issue 7, March 1997
20. Replace
TRU
with
TRU
removed previously.
21.
!
CAUTION:
Incorrectly set ADU option switches may result in immediate or future
loss of service or may introduce errors into the digital bitstream.
Replace
ADU
with a correctly optioned
ADU
.
22. Reseat
LIU
while observing
FAIL
indicator on
LIU
faceplate.
23. After approximately 20 seconds, did
FAIL
indicator on
LIU
light momentarily?
If
YES,
then proceed to Step
26.
If
NO,
then continue with Step
24.
24.
!
CAUTION:
Incorrectly set ADU option switches may result in immediate or future
loss of service or may introduce errors into the digital bitstream.
Replace
ADU
with
ADU
removed previously.
25. Check wiring between
PCU
in AB shelf and
LIU
using SD-7C117-01 or
SD-7C117-02. Repeat procedure from Step
14
after locating and correcting
trouble.
26. Did
FAIL
indicator on
LIU
go off and remain off?
If
YES,
then
STOP. YOU HAVE COMPLETED THIS PROCEDURE.
If
NO,
then continue with Step
27.
27. Remove and reinsert
ADU
.
28. Did
FAIL
indicator on
LIU
go off and remain off?
If
YES,
then
STOP. YOU HAVE COMPLETED THIS PROCEDURE.
If
NO,
then continue with Step
29.
29. Replace
LIU
with correctly optioned
LIU
while observing
FAIL
indicator on
LIU
faceplate.
30. Did
FAIL
indicator on
LIU
go off and remain off?
If
YES,
then
STOP. YOU HAVE COMPLETED THIS PROCEDURE.
If
NO,
then continue with Step
31.