Lucent Technologies SLC 5 Series - Install Bank Control Unit (BCU) for FPC Conversion

363-205-401 Conversions:
Issue 7, March 1997 Page 1 of 2
DLP-502
Install Bank Control Unit (BCU) for FPC Conversion
1. Get one
MC97756A1 BCU
and inspect for possible damage.
2. Have
LIU
s been removed from channel bank being converted?
If
YES,
then continue with Step
3.
If
NO,
then proceed to Step
4.
3.
NOTE:
MISC1
or
MISC2
indicator on
BCU
will light if either one is connected to
open door closure alarm.
Insert
BCU
into
BCU
slot in channel bank being converted.
Response:
BCU
and
ADU FAIL
indicators are lighted. After approxi-
mately 20 seconds,
BCU
and
ADU FAIL
indicators go off.
ADU MJ
,
NE
and
BCU DIGROUP A, B, C,
and
D
indicators
are lighted.
Proceed to Step
5.
4.
NOTE:
MISC1
or
MISC2
indicator on
BCU
will light if either one is connected to
open door closure alarm.
Insert
BCU
into
BCU
slot in channel bank being converted.
Response:
BCU
and
ADU FAIL
indicators light. After approximately 20
seconds,
BCU
and
ADU FAIL
indicators go off.