Huawei AP4030DN Hardware Installation And Maintenance Manual page 98

Huawei AP4030DN
Hardware Installation and Maintenance Guide
PGND and BGND are two copper bars, on which the terminal blocks are short-circuited,
therefore which terminal is connected makes no difference. It is only necessary to give the
row and column of the power distribution box, instead of giving 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 BGND copper bar in
the power distribution box on Row A, Column 01 in the machine room. Information on the
labels for PGND cables should be given in a similar way.
Engineering Labels for AC Power Cables
The labels are affixed to both ends of an AC power cable that provides AC power supply to
cabinets, including 110/220 V, PGND, and BGND cables. The 110/220 V AC cables and
related PGND and BGND cables are covered with an insulating sheath, so the labels need to
contain only the word "AC" and the cabinet numbers.
The labels for AC power cables are affixed to one side of the identification plates on cable ties.
For details, see
Table 5-27 Label content
Content
MN-(B)-ACn
The label only carries location information about the opposite equipment and the power
socket; information about the local end is not necessary.
Make sure that labels are affixed in correct 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
Issue 02 (2015-05-18)
Table 5-27.
Meaning
MN: serial number of the cabinet or the socket where the power is led
in
B: chassis number, numbered in the bottom-up order with two digits,
for example, 01.
n: power port number, numbered as 1 to 3 in bottom-up and
left-to-right order.
Serial number of the socket where the power is led in: the location of
the socket is marked according to the actual situation. If the sockets can
be identified by row numbers and column numbers, they can be
numbered following the same rule for the cabinets. If the sockets
cannot be identified by rows and columns, specify the detailed
locations to avoid confusion with other sockets.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
5 Appendix
Figure 5-94.
94