Lucent Technologies SLC 5 Series - Page 317

363-205-401 RT Turn Up:
Issue 7, March 1997 Page 1 of 2
DLP-511
Install Transcoder Unit (TCU)
1. Get one TCU (
AUA71
) and inspect for possible damage.
2. Insert
TCU
into appropriate
LIU-B
or
LIU-D
slot (left side for blue bank or
right side for white bank) in facility shelf while observing
FAIL
indicator on
TCU
faceplate.
Response:
TCU FAIL
indicator lights momentarily. Other indicators
remain the same.
3. Did
FAIL
indicator on
TCU
light momentarily?
If
YES,
then proceed to Step
16.
If
NO,
then continue with Step
4.
4. Replace
TCU
while observing
FAIL
indicator on
TCU
faceplate.
5. Did
FAIL
indicator on
TCU
light momentarily?
If
YES,
then proceed to Step
16.
If
NO,
then continue with Step
6.
6. Replace
TRU
in AB shelf.
7. Replace
TCU
with
TCU
removed previously while observing
FAIL
indicator
on
TCU
faceplate.
8. Did
FAIL
indicator on
TCU
light momentarily?
If
YES,
then proceed to Step
16.
If
NO,
then continue with Step
9.
9. Unseat
TCU
.
10. Replace
TRU
in AB shelf with
TRU
removed previously.