D820R ADSL2+ Router User Guide
2.3
Installation Environment
2.3.1 Physical Environment Requirement
Install the device horizontally.
Do not wipe off dirt with wet cloth.
Make sure there’s adequate space for proper heat dissipation
and adequate ventilation around the device.
Keep the environment clean and dry.
Power off the device and unplug the power adapter in heavy
rain and lightning day.
2.3.2 Working Environment
Operating temperature: 0
℃
~40
℃
Storage temperature: -40
℃
~70
℃
Humidity: 10%~90% RH non-condensing
2.4 Hardware Installation
2.4.1 Installation Requirement
Before you install the device, please make sure you the following
requirements are acquired.
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