Hardware Installation and Reference Guide
Preparation before Installation
2.2.1
Ventilation
For the RG-S1920, a sufficient space (at least 10 cm distances from both sides and the back plane of the cabinet) should
be reserved at the ventilation openings to ensure the normal ventilation. After various cables have been connected, they
should be arranged into bundles or placed on the cabling rack to avoid blocking the air inlets. It is recommended to clean
the switch at regular intervals (like once every 3 months). Especially, avoid dust from blocking the screen mesh on the
back of the cabinet.
2.2.2
Temperature and Humidity
To ensure the normal operation and prolong the service life of RG-S1920 series switch, you should keep proper
temperature and humidity in the equipment room.
If the equipment room has temperature and humidity that do not meet the requirements for a long time, the equipment
may be damaged.
In an environment with high relative humidity, the insulating material may have bad insulation or even leak electricity.
Sometimes the materials may suffer from mechanical performance change and metallic parts may get rusted.
In an environment with low relative humidity, however, the insulating strip may dry and shrink. Static electricity may
occur easily and endanger the circuit on the equipment.
In an environment with high temperature, the equipment is subject to even greater harm, as its performance may
degrade significantly and various hardware faults may occur.
Therefore, the ambient temperature and humidity of the RG-S1920 series must meet the requirements listed in Table 2-1:
Table 2-1 Temperature and Humidity Requirements of the RG-S1920 Series Switch
Temperature
Relative Humidity
-5ºC to 55ºC (23°F to 131°F)
10% to 90%
The requirements for the sampling site of the temperature and humidity in the operating environment of the device
are as follows:
There is no protective plate at the front or back of the equipment rack.
The vertical height is 1.5 m above the floor.
The distance from the front panel of the equipment is 0.4 m.
2.2.3
Cleanness
Dust poses a severe threat to the running of the equipment. The indoor dust falling on the equipment may be adhered by
the static electricity, causing bad contact of the metallic joint. Such electrostatic adherence may occur more easily when
the relative humidity is low, not only affecting the useful life of the equipment, but also causing communication faults.
Table 2-2 shows the requirements for the dust content and granularity in the equipment room.
Table 2-2 Requirements for the Dust Content and Granularity in the Equipment Room
Dust
Unit
Density
Diameter
≥
0.5
μm
Particles/m
3
≤
3.5 x 10
6
Diameter
≥
5
μm
Particles/m
3
≤
3 x 10
4
