Figure A-89
Example of the labels for DC power cables
TO:
A01 -48V2
B08
TO:
B03 -48V2
Label for the power cable on the
loaded cabinet (namely cable
position on the power
distribution cabinet)
Label for the power cable on the
power distribution cabinet (namely
cable position on the loaded cabinet)
The labels in
l
On the loaded cabinet side, the label "A01/B08--48V2" on the cable indicates that the
cable is -48 V DC supply, which is from the eighth connector in row B of -48 V busbar
in the cabinet in row A, and in column 1 in the equipment room.
l
On the distribution box side, the label "B03--48V2" indicates that the cable is -48 V DC
supply, connected to DC power socket 2 in row B, column 03 in the equipment room.
NOTE
In the power distribution box or the first power cabinet of a row in a transmission equipment room,
every terminal block on the -48 V connector bar is identified with a number. For example, in the above
"A01/B08--48V2" label, "08" (or sometimes "8") is the numeric identifier of the terminal block.
PGND and BGND are both copper bars on which the terminal blocks are short-circuited.
Therefore, you can connect to either terminal. It is only necessary to provide the row and
column of the power distribution box, instead of the specific serial number of the terminal
block on the copper bar. For example, if the label on the loaded cabinet side is "A01-BGND",
it means that the power cable is a BGND that connects a BGND copper bar in the power
distribution box in Row A, Column 01 in the machine room. Provide information on labels
for PGND cables in a similar way.
A.5.6.2 Engineering Labels for AC Power Cables
AC power cable labels are affixed to both ends of an AC power cable that provides AC power
supply to cabinets, including 220 V, PGND, and BGND cables. 220 V AC cables and related
PGND and BGND cables are covered with an insulating sheath, so the labels need to contain
only "AC" and the cabinet numbers.
Affix AC power cable labels to one side of the identification plates on cable ties.
describes the contents on AC power cable labels.
HUAWEI USG9500 Series
Hardware Guide
A Appendix
Issue 03 (2017-12-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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