H3C S3100-8C-Sl Quick Start Manual

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H3C S3100-8C-Sl Quick Start Manual Manual pdf 31 page image

Quick Start (For Japan)H3C S3100 Series Ethernet Switches Chapter 2 Installation Preparation2-4Table 2-2 Limits on harmful gas in the equipment roomGas Max content (mg/m³)SO 2 0.2H 2S 0.006NH 3 0.05Cl2 0.012.2.3 Anti-interference RequirementsA switch in use may be affected by the interference from outsidethe system by way of capacitance coupling, inductance coupling,electromagnetic radiation, public impedance (including the groundingsystem) coupling or conducting line (power line, signaling line andtransmission line). Therefore, you should pay attention to thefollowing:z If AC supply system is TN system, AC power socket shouldbe a single-phase three-line power socket with ProtectionEarth (PE) so that the filter circuit on the equipment caneffectively filter out the interference coming from the powersupply system.z Keep the switch far away from high-power radio transmitters,radars, and high-frequency heavy-current devices.z Adopt electromagnetic shielding measure if necessary. Forexample, you can adopt shielded interface cable.z Wire interface cables indoors. Do not wire cables outdoorsin case that overvoltage and overcurrent damage thedevice.