Ruijie RG-S2915-L Series User Manual

Hardware Installation and Reference Guide Preparing for Installation
27
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
Average refers to the average value of harmful gases measured in one week. Maximum refers to the upper limit of the harmful
gas measured in one week, and the maximum value lasts up to 30 minutes every day.
2.2.4 Anti-interference Requirements
The switch is susceptible to external interference by capacitive coupling, inductive coupling, electromagnetic waves, common
impedance (ground) coupling, or conduction over power lines, signal lines and output lines. Therefore, pay attention to the following
points:
 In a TN earthing system, use a single-phase three-core power socket that has protective earthing conductors (PE) to allow the
filter circuit in the device to eliminate interference from the power grid.
 The switch should be located far away from the large power radio launch pads, radar launch pads, and high-frequency large-
current devices.
 Use EMI shielding such as shielded interface cables to minimize interference when necessary.
 Route interface cables only indoors to prevent signal ports from getting damaged by overvoltage or overcurrent caused by
lightning strikes.
2.2.5 Grounding Requirements
A proper grounding system is the basis for stable and reliable running of the RG-S2915-L series switches and is indispensable for
preventing lightning strikes and interference. Carefully check the grounding conditions at the installation site according to the
grounding specifications, and complete grounding properly based on the actual situation.
Carefully check the grounding conditions at the installation site according to the grounding specifications, and complete
grounding properly based on the actual situation.
Safety Grounding
Ensure that the switch is securely grounded using a yellow/green grounding cable when the switch uses the AC power supply.
Otherwise, electric shock may occur when the insulation resistance between the power supply inside the switch and the chassis
becomes small.
The building should provide a protective ground connection to ensure that the device is connected to the protection ground.
Installation and maintenance personnel should check whether the AC socket is reliably connected to the protection ground of
the building. If not, installation and maintenance personnel should use a protective ground cable to connect the protection
grounding lug of the AC socket to the protection ground of the building.
The power socket should be installed in an easily operable position near the device.
During the device installation, be sure to connect the ground cable first and disconnect it last.
The cross-sectional area of the protective ground cable should be at least 0.75 mm
2
(18 AWG).
Install the device by using 3-core power cords, with a minimum cross-sectional area of 0.75 mm
2
or 18AWG per pin.
Lightning Grounding

Ruijie RG-S2915-L Series Specifications

General

Brand	Ruijie
Model	RG-S2915-L Series
Category	Switch
Language	English