B-12
Table B-5
Information on labels affixed to the DC power cables
Content
Meaning
MN(BC)--48V1
MN(BC)--48V2
MN(BC)-BGND
MN(BC)-PGND
MN(BC): BC is written right under MN.
On the loaded cabinet side, only MN is used to identify the cabinet.
On the power cabinet side, MN identifies the row and column number
of the power distribution equipment like the control cabinet and
distribution box, BC identifies the row and column number of the -48V
connecter (if there is no row number or column number, or the
connecter can be identified without them, BC can be omitted). BGND
and PGND have no row and column number for identification.
The label only carries location information about the opposite equipment, the control cabinet or the
distribution box, while information of the local end is not necessary. Table B-5 lists the information of two
-48V power supplies on the label. The information for other DC voltages (such as 24V, 60V) should be
given in similar methods.
Example of the label
Make sure that labels are affixed in correction direction. That is, after the cable ties are bundled onto the
cable, the identification plates with the labels should face up, and the text on the labels in the same
cabinet should be in the same direction, as shown in Figure B-13.
Figure B-13
Example of the labels on the DC power cable
(1)
(2)
TO:
A01 -48V2
B08
TO:
B03 -48V2
In Figure B-13, (1) indicates the label on the loaded cabinet side, which carries the information about
the position of the cable on the power distribution box. (2) indicates the label on the distribution box side,
which carries the information about the position of the cable on the loaded cabinet side.
On the loaded cabinet side, the label marked with “A01/B08--48V2” on the cable indicates that the cable
is -48V2 DC supply, which is from the 8
th
connecter on the second row of -48V bus bar in the cabinet on
Row A, and Column 1 in the machine room.
On the distribution box side, the label marked with “B03--48V2” indicates that the cable is -48V2 DC
supply, which is from the loaded cabinet on Row B, Column 03 in the machine room.
