Lucent Technologies SLC 5 Series - Page 426

Conversions: TAP-100 363-205-401
Page 2 of 4 Issue 7, March 1997
12. Is the
FAIL
LED on the suspect unit lighted?
If
YES
, continue with Step
13
.
If
NO
, proceed to Step
14
.
13. With the
LED TEST
button held, does the
FAIL
LED on the suspect unit go
off?
If
YES
, proceed to Step
24
.
If
NO
, continue with Step
14
.
14. Replace the suspect unit with another unit of the same type.
15. Did the
FAIL
LED on the suspect unit light momentarily and then go off?
If
YES
,
STOP. YOU HAVE COMPLETED THIS PROCEDURE.
If
NO
, continue with Step
16
.
16. Replace the unit with the unit removed previously.
17. Replace the
BCU
.
18. Did the
FAIL
LED on the suspect unit go off?
If
YES
,
STOP. YOU HAVE COMPLETED THIS PROCEDURE.
If
NO,
continue with Step
19
.
19. Replace the
BCU
with the
BCU
removed previously.
20. Replace the
ADU
.
21. Did the
FAIL
LED on the suspect unit go off?
If
YES
,
STOP. YOU HAVE COMPLETED THIS PROCEDURE.
If
NO
, continue with Step
22
.
22. Replace the
ADU
with the
ADU
removed previously.
23. Check the wiring using SD-7C117-01, SD-7C117-02, or SD-7C117-03. After
locating and correcting the wiring trouble, go back to the NTP and reinstall the
unit with the FAIL LED problem.
24. Release the
LED TEST
button. Is the
CMP
LED on the
ADU
lighted?
If
YES
, continue with Step
25
.
If
NO
, proceed to Step
26
.