Huawei USG6000 Series Hardware Manual page 230

HUAWEI USG6000 Unified Security Gateway
Hardware Guide
Context
Before connecting power cables, ensure that the DC power supply in the equipment room
meets the input requirements of the USG.
Do not connect or disconnect the power cables when the USG is powered on.
Procedure
Step 1 Ensure that the PGND cable is properly grounded.
Step 2 Ensure that the USG is powered off.
Step 3 Connect the power cables to both DC power supply modules one after the other.
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1.
2.
Issue 03 (2015-01-26)
Note the labels on the DC power cables to prevent connection mistakes.
When two power modules are used, connect them to different power sources to improve
availability.
Connect the power plug of the DC power cable to the DC power supply module.
Connect the other ends of the DC power cables to the output terminals on the power
supply device.
Figure 2-48 Connecting the DC power cables
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