Hardware Installation and Reference Guide
Preparing for Installation
24
2.2.2 Temperature/Humidity Requirements
To ensure the normal operation and prolonged service life of the RG-S5760C-X switch, maintain an appropriate
temperature and humidity in the equipment room.
The equipment room with too high or too low temperature and humidity for a long period may damage the switch.
In an environment with high relative humidity, the ins ulating material may have poor insulation or even leak electricity.
In an environment with low relative humidity, the insulating strip may dry and shrink, loosening screws.
In a dry environment, static electricity is prone to occur and damage the internal circuits of the switch.
Too high temperatures can accelerate the aging of insulation materials, greatly reducing the reliability of the switch
and severely affecting its service life.
Temperature and humidity requirements of the RG-S5760C-X series are as follows:
Temperature
Relative Humidity
0ºC to 45ºC (32°F to 113°F)
10% to 90% (non-condensing)
The working temperature and humidity are measured 1.5 m above the ground and 0.4 m away from the front plat and
when the
chassis’ front and rear protective plates are removed. The ambient temperature and humidity of the switch
are measured at the point that is 1.5 m (59.06 in.) above the floor and 0.4 m (15.75 in.) before the switch rack when
there is no protective plate in front or at the back of the rack.
2.2.3 Cleanliness Requirements
Dust poses a major threat to the switch. The indoor dust takes on a positive or negative static electric charge when falling
on the switch, causing poor contact of the metallic joint. Such electrostatic ad hesion may occur more easily when the
relative humidity is low, not only affecting the service life of the switch, but also causing communication faults. The
following table describes the requirements for the dust content and granularity in the equipment r oom.
Min Dust Diameter (
μm)
0.5
5
Dust Particle (Particles/m
3
)
≤
3.5x10
6
≤
3x10
4
Apart from dust, the salt, acid, and sulfide in the air in the equipment room must meet strict requirements. These harmful
substances will accelerate metal corrosion and component aging. Therefore, the equipment room should be properly
protected against the intrusion of harmful gases, such as sulfur dioxide, hydrogen sulfide, nitrogen dioxide, and chlorine
gas. The following table lists limit values for harmful gases.
Gas
Average (mg/m
3
)
Maximum (mg/m
3
)
Sulfur dioxide (SO
2
)
0.3
1.0
Hydrogen sulfide (H
2
S)
0.1
0.5
Nitrogen dioxide (NO
2
)
0.5
1.0
Chlorine gas (CI
2
)
0.1
0.3
2.2.4 Grounding Requirements
A good grounding system is the basis for stable and reliable running of the RG-S5760C-X series and is indispensable for
preventing lightning strikes and interference. Please carefully check the grounding conditions at the installation site
according to the grounding specifications, and complete grounding properly based on the actual situation .
