363-205-401 Power Up:
Issue 7, March 1997 Page 1 of 4
DLP-510
Install Bank Fuse Unit (BFU) in Power Shelf
SUMMARY:
The
AUG11
or
40D BFU
is used in the J1C182BA, J1C182BB, or
J1C182PB-1 power shelf. The BFU (without fuses) should be installed with the power
shelf equipped The the fuses are installed to verify that they do not blow.
1. Verify -48 volts DC (-42 to -56) on one of the following units installed in the
power shelf;
•
GND
to
-48L
on
LDU
,
•
GND
to
-48L
on
RCU
,
•
GND
to
-48L
(1) (2) (3) on
RSU
,
•
-48RTN( )
to
-48V( )
on
TB1
of J1C182PB shelf.
2. Get required number of
BFU
s (refer to Figure 1 and Table A) to be inserted
into RT power shelf.
Table A
BFU Locations
BFU Associated Equipment
Slot J1C182PB-1 J1C182BA J1C182BB
BFU1 Optical Shelves 1 & 2 Lower DCBA Lower DCBA
BFU2 Optical Shelves 3 & 4 Upper * DCBA Middle DCBA
BFU3 Lower DCBA NA Upper DCBA
BFU4 Upper DCBA NA NA
DCBA = Dual Channel Bank Assembly
* Not used in a 51-type cabinet, used for a DDM-1000 or DDM-2000
(if equipped) in other type cabinets.
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