Table 2-62
Functions of the 350 W AC power module
Item
Description
Input undervoltage
protection
Stops power output and automatically restores power output
after the input voltage becomes normal.
Input overvoltage
protection
Stops power output and automatically restores power output
after the input voltage becomes normal.
Input overcurrent
protection
Stops power output and does not automatically restore power
output after the input current becomes normal.
Output current limiting
protection
Intermittently provides output and automatically restores
normal output after the output current falls within a normal
range.
Output overvoltage
protection
Intermittently stops output and automatically restores output
after the overvoltage condition is removed.
Output short circuit
protection
Intermittently provides output and automatically restores
normal output after the output short circuit is removed.
Overtemperature
protection
When the temperature of the power module reaches a preset
threshold, the power module stops power output and will
automatically restore power output after the temperature drops
back to the normal range.
Heat dissipation
The power module does not have fans. The heat dissipation is
provided by the fan module of the device.
Hot swap
The device has 1+1 power module redundancy. You can hot-
swap a power module without interrupting device operation.
lists the technical specifications of the 350 W AC power module.
Table 2-63
Technical specifications of the 350 W AC power module
Item
Description
Silkscreen
PWR350A or PAC-350WD-L
NOTE
Currently, the 350W AC power module used on the USG is
PAC-350WD-L. In the early time, the 350W AC power module used
on the USG is PWR350A. The two types of power modules provide
the same function and can serve as spare parts for each other.
Dimensions (H x W x D)
38.5 mm x 201.0 mm x 260.5 mm
Weight
1.45 kg
Input
Rated input voltage range 100 V AC to 240 V AC (50 Hz/60 Hz)
HUAWEI USG6000 Series
Hardware Guide
2 Hardware Overview
Issue 08 (2017-06-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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