S4600-24X2CInstallation Instruction Manual
2 Installation instruction
NADDOD Pte. Ltd.
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metal and aging of certain components. Harmful gases, such as SO2, H2S, NH3 and Cl2 shall
be kept away from the machine rooms.
Form 2-3
Limit values of harmful gases in the machine room
Gases
Maximum values (mg/m3)
Sulfur dioxide SO
2
0.2
Sulfuretted hydrogen H
2
S
0.006
Ammonia NH
3
0.05
Chlorine Cl
2
0.01
Anti-interference requirements
The switches may be affected by external interference of the system during usage through
such conduction methods as capacity coupling, inductive coupling, electromagnetic radiation,
common impedance (including grounding system) coupling and wires (power line, signal line,
output line, etc.).
For this purpose, it should be noted that:
The alternating current power supply system is TN system, the alternating current power
socket should adopt single-phase three-wire power socket with protective earth wire (PE),
to allow the filter circuit on the device to filter the interference of power grid effectively.
Keep the workplace of switches far away from high power radio launcher, radar launcher,
high frequency high current equipment.
Adopt electromagnetic shielding method if necessary, for example, the interface cables
adopt shield cables.
The interface cables are required to cable indoor, and cabling outdoor is prohibited, so as
to prevent overvoltage and overcurrent caused by thunder from damaging the signal port
of devices.
Laser usage safety
This series switches belong to Class 1 laser devices.
If the optional fiber interface boards of this series switches are in working state, don’t look
straight at these fiber interfaces, because the light beams of the optical fiber have energy at a
very high level, which may harm the retina.
2.1.3 Installation tools
Before installation, please prepare the following tools: