Ruijie RG-RSR20-X-28 Series, Руководство по установке и справочное руководство по оборудованию

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
Temperature and humidity requirements

Cleanness requirements

Anti-static requirements

Anti-interference requirements
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Anti-lightning requirements
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Installation platform check
2.2.1 Temperature and Humidity Requirements
To ensure the normal operation and maximize the service life of a router, you should keep proper temperature and
humidity in the equipment room. If the relative humidity is high for a long time, the insulating materials may have
poor insulation, electric leakage or other mechanical performance degrade may occur. And if the relative humidity is
too low, the insulating washers may become dry and shrink, which may cause loosened screws. In addition, static
electricity may easily occur in dry weathers, harming the internal circuitry of the router. High temperature will speed
the aging of insulation materials, lowering the router's reliability and shorten its service life.
The following are Ruijie RSR20-X-28 series routers' Requirements for the temperate and humidity requirements:
Temperature: 0ºC to 45ºC (32ºF to 113 ºF)
Relative humidity: 5%
–95% RH
The ambient temperature and humidity refer to the values measured at the place 1.5m above the floor and 0.4m
in the front of the router rack without protective boards.
The temperature and humidity requirements may be different for different products. For details, see descriptions
about the characteristic parameters for each product.
2.2.2 Cleanness Requirements
Dust poses a serious threat to device operation. Dust that falls onto the surface of the device can be absorbed onto
metal contact points by static electricity, resulting in poor contact. Electrostatic absorption of dust occurs more easily
when the relative humidity is low, which may shorten the useful life of the device and cause communication failures.
The following table describes Ruijie routers' requirements for the dust content and granularity in the equipment
room:
Maximum
diameter (μm)
0.5 1 3 5
Maximum
concentration
(Particles/m
3
)
1.4 ×
10
7
7 × 10
5
2.4 × 10
5
1.3 × 10
5
Besides, the content of salts, acids and sulfides in the air are also strictly limited for the equipment room. These
substances can accelerate metal corrosion and aging of some parts. The following table describes the limit of some
hazardous gases such as SO
2
, H
2
S, NO
2
and Cl
2
in the equipment room.
Gas Average (mg/m
3
) Maximum (mg/m
3
)