Huawei USG9500 Series Hardware Manual page 319

HUAWEI USG9500 Series
Hardware Guide
Context
Never install power cables when the power is on.
Before installing power cables, ensure that the device is adequately grounded.
With the 110 V AC power supply, the USG9520 must use 110 V dual-live-wire AC input to
meet the maximum system power consumption requirements with the full configuration. This
is because AC power modules are half-load output with 110 V AC input, which cannot meet
system power consumption requirements.
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Procedure
Step 1 Mark both ends of each power cable using a non-permanent marker.
Step 2 Install an AC power cable clip.
Issue 03 (2017-12-15)
DANGER
NOTICE
There is a length of copper core inside the cable. Do not connect anything to the core.
AC power distribution cables
Figure 2-56 AC power distribution cables
For details, see Guide to Power Distribution Design of the
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2 Hardware Installation
USG9520.
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