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Quick Start
Mounting in the network box
● Do not use an enclosed network box and ensure that the air intake and
● If the network box is installed indoors or in a corridor that is free from rain, the
● If the network box is installed outdoors or in a corridor that is exposed to rain,
● The method for installing the ONU in a non-Huawei network box depends on
●
Issue 02 (2020-01-03)
NO TICE
exhaust vents are not blocked to ensure proper heat dissipation of the ONU.
network box must meet the requirements of IP31 protection. ("IP" is short for
international protection. The first number indicates a class for preventing the
solid particle from entering the device and the second number indicates a class
for preventing water from entering the network box. "3" means that solid
particles with diameters equal to or larger than 2.5 mm can be prevented from
entering the box. "1" means that the drips fallen vertically cannot damage the
device.)
the network box must meet the requirements of IP55 protection. ("5" means
that the network box cannot completely prevent dust from entering, but the
amount of dust that enters the network box does not damage the device. "5"
means that the water sprayed from different directions to the network box
does not damage the device.)
the network box specifications. When the ONU is installed in a non-Huawei
network box, the preceding heat dissipation space rules must be observed.
Guide for Grounding the Network Box of TN-S and TN-C-S Power
Distribution Systems
Copyright © Huawei Technologies Co., Ltd.
2 Installing the Device
5
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