Lucent Technologies SLC 5 Series - Page 358

RT Turn Up: DLP-522 363-205-401
Page 2 of 2 Issue 7, March 1997
2. Insert the
BCU
into lower
BCU
slot if equipping blue bank or upper
BCU
slot is
equipping the white bank. Within 75 seconds, all other indicators go off and the
PRV
LED on the
ADU
lights. Wait for the
PRV
indicator to go off before remov-
ing the
ADU
or
BCU
. It can take up to 10 minutes for
PRV
LED to go off.
3. Did all alarm indicators go off?
If
YES
, then
STOP. YOU HAVE COMPLETED THIS PROCEDURE.
If
NO
, then continue with Step
4.
4. Replace
BCU
.
5. Did all alarm indicators go off?
If
YES
, then
STOP. YOU HAVE COMPLETED THIS PROCEDURE.
If
NO
, then continue with Step
6.
6. Replace the
BCU
with the one removed previously.
7.
!
CAUTION:
Incorrectly set ADU option switches can result in immediate or future loss
of service or can introduce errors into the digital bitstream.
Replace
ADU
.
Reference: DLP-523
8. Did all alarm indicators go off?
If
YES
, then
STOP. YOU HAVE COMPLETED THIS PROCEDURE.
If
NO
, then continue with Step
9.
9. Replace the
ADU
with the one removed previously.
10. Check wiring using SD-7C117-01 or SD-7C117-02. Repeat procedure from
Step
2
after locating and correcting the trouble.