Lucent Technologies SLC 5 Series - Page 441

Conversions: DLP-504 363-205-401
Page 2 of 4 Issue 7, March 1997
9. Did
DTU-R FAIL
indicator light momentarily?
If
YES,
then proceed to Step
24.
If
NO,
then continue with Step
10.
10. Replace both
DTU-L
and
DTU-R
while observing
FAIL
indicator on
DTU-R
faceplate.
Response:
DTU-R FAIL
indicator lights momentarily.
11. Did
DTU-R FAIL
indicator light momentarily?
If
YES,
then proceed to Step
24.
If
NO,
then continue with Step
12.
12.
!
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 another correctly optioned
ADU
.
13. Wait 20 seconds then replace
DTU-L
and
DTU-R
with units removed previ-
ously while observing
FAIL
indicator on
DTU-R
faceplate.
14. Did
FAIL
indicator on
DTU-R
light momentarily?
If
YES,
then proceed to Step
24.
If
NO,
then continue with Step
15.
15.
!
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.
16. Are any fuses on
CFU
in blue (lower) bank blown?
If
YES,
then continue with Step
17.
If
NO,
then proceed to Step
20.
17. Replace blown fuse(s) on
CFU
.
18. While observing
FAIL
indicator on
DTU-R
faceplate, unseat then reseat
DTU-R
.