N2000H V3 Appliance
User Guide
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
7.4 Removing a PSU
This topic describes how to remove an AC or DC power supply unit (PSU).
7.4.1 Removing an AC PSU
This topic describes how to remove an AC power supply unit (PSU) before replacing it with a
new one.
Scenarios
Remove an AC PSU in any of the following scenarios:
An AC PSU fails.
An AC PSU is to be replaced with a new model.
Prerequisites
Conditions
When two PSUs are configured, remove one PSU without powering off the N2000H V3 if the
other PSU is operating properly and its power rating is greater than or equal to the rated
power of the N2000H V3. Observe the PSU indicators to check the PSU operating status. For
details about the indicators, see 1.4 Indicators and Buttons.
Data
You have determined the position on the N2000H V3 for removing a PSU.
You have obtained the rack number and chassis number of the N2000H V3.
You have located the N2000H V3 based on the preceding information, and labeled its
panel to prevent misoperations.
Tools
ESD gloves or ESD wrist strap
Packaging materials, for example, an ESD bag
Procedure
Step 1 (Optional) If only one PSU is configured, power off the N2000H V3. For details, see 3.2
Powering Off.
Step 2 Open the cable tie for the power cable. See Figure 5-5.
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