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Filler panels are inserted into vacant slots. Filler panels prevent intrusion of dust and
ensure heat dissipation.
2.4.6 Installing Power Cables - DC Power Distribution
In standard configuration, the USG9520 has two DC power supply modules. Each module
requires an NEG DC power cable and an RTN DC power cable. This section describes how to
connect power cables to the two DC supply modules.
Context
DANGER
Never install power cables when the power is on.
Before installing power cables, ensure that the device is adequately grounded.
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There is a length of copper core inside the cable. Do not connect anything to the core.
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DC power distribution cables
Cable
Image
NEG cable
RTN cable
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DC cable terminals
HUAWEI USG9500 Series
Hardware Guide
2 Hardware Installation
Issue 03 (2017-12-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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