Figure 2-10
Connecting the PGND cable
Chassis
AC power frame
(AC power source is used)
Cabinet front
Cabinet rear
Cabinet ground
Cabinet
C
Cabinet rear
a
abinet ground
1
2
----End
Follow-up Procedure
Verify the following:
l
The PGND cable is securely connected to the ground terminal.
l
The electrical resistance between the ground terminal and ground point is less than 10
ohm on a multimeter.
2.2.4 Installing Boards and Subcards
This section describes how to install boards and subcards.
Context
CAUTION
l
Ensure that the device and board are completely dry and free of liquid before inserting the
board into the device.
l
Before installing boards, wear the ESD wrist strap and ensure that the strap is well
grounded to prevent any electrostatic discharge from damaging sensitive components.
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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