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HUAWEI USG9500 Series
Hardware Guide
Front Panel
Figure 1-2 USG9580 front panel
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Issue 03 (2017-12-15)
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MPUB
MPUB
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Name
Description
Air filter
The USG9580 has three air filters on the air intake vents of the upper
and lower air channels and an air intake vent at the left side of the SFU
area to protect the device against dust.
MPU
The Main Processing Unit (MPU) on the USG9580 is in charge of
system control and route information learning. It is the central control
unit of the device. The USG9580 MPUs work in 1:1 backup mode.
When the active MPU is faulty, the standby MPU immediately takes
over for it, ensuring service continuity.
LPU/SPU
Holds an LPU or SPU.
slot
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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1 Hardware Overview
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