3.5.1 Labeling Power Cables
This topic describes how to label power cables. In this topic, power cables refer to DC power
cables and AC power cables.
Context
describes the contents of the engineering labels for DC power cables.
Table 3-10
Contents of engineering labels for DC power cables
Contents
Meaning
MN (BC)— –48
V1
MN (BC): The information of BC is mentioned right below the
information of MN.
On the cabinet side, MN identifies the cabinet number.
On the power distribution frame (PDF) side, MN indicates the row
number and column number of the power distribution equipment such as
the control cabinet and the junction box.
BC indicates the row number and column number of the -48 V connector.
This item can be left blank if the connector can be identified directly.
GND and PGND cables must not have row or column numbers.
MN (BC) — -48
V2
MN (BC) —
GND
MN (BC) —
PGND
NOTE
The GND and PGND are copper bars. All the wiring terminals on a copper bar are electrically connected.
Thus, only the row and column information of the PDFs is required. For example, a cable labeled with
A01-GND is connected to the GND bar in row A, column 01. The label for a cable connected to a PGND
bar is marked in the same manner.
shows an engineering label for DC power cables.
Figure 3-79
Engineering label for DC power cables
(1) Label on the cabinet side
(2) Label on the PDF side
l
The label on the cabinet side is marked with A01/B08- -48V2. It indicates that the cable is
for -48V2 DC supply and is connected to the eighth wiring terminal in the second row of
the -48 V busbar, row A and column 01 PDF.
HUAWEI NetEngine80E Router
Installation Guide
3 On-site Cable Assembly and Installation
Issue 02 (2011-09-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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