Lucent Technologies SLC 5 Series - Page 307

363-205-401 RT Turn Up:
Issue 7, March 1997 Page 1 of 4
DLP-508
Install Bank Control Unit (BCU)
Summary:
With the ADU option for preservice and unequipped, install the BCU and
verify all alarms clear in 1 minute or less (MISC alarms may be lighted). If not check
the ADU options, then replace ADU and/or BCU. If you have ADU MJ/MN NE alarms
(no FAIL), clear power shelf trouble (ringing generators, fuse units, power units, ...)
before continuing (use 363-205-500 Maintenance TOP).
1.
NOTE:
The
MC97726A1 BCU
is rated discontinued availability; any units
remaining in the field should be returned for an upgrade per customer
information release (CIR) 363-099-072.
Get one
MC97723A1
(Feature Package A) (rated discontinued availability),
MC97724A1
(Feature Package B),
MC97756A1
(Feature Package C or D),
MC97771A1
or
MC97776A1( )
(Feature Package B Mode 1 and Mode 2, or
Feature Package C-AutoCut)
MC97779A1
(Feature Package F)
BCU
(Figure
1), as required, and inspect for possible damage.
Figure 1 – Typical RT BCU Faceplates
FAIL
P/M
D
C
B
A
DIGROUP
MC97
724A1
1
BCU
PMN
MISC1
MISC2
RT
FAIL
D
C
B
A
DIGROUP
MC97
1
BCU
723A1
PMN
MISC1
MISC2
RT
FAIL
D
C
B
A
DIGROUP
MC97
1
BCU
756A1
PMN
MISC1
MISC2
RT
FAIL
D
C
B
A
DIGROUP
MC97
1
BCU
771A1
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