H3C S6520X-EI Series Installation Manual

Also see for S6520X-30HC-EI: Installation guide Manual Manual

Contents

H3C S6520X-EI Series Installation Manual Manual pdf 10 page image

1-3Table 1-2 Harmful gas limits in the equipment roomGas Maximum concentration (mg/m3)SO 2 0.2H2 S 0.006NH3 0.05Cl2 0.01EMIAll electromagnetic interference (EMI) sources, from outside or inside of the switch and applicationsystem, adversely affect the switch in the following ways:• A conduction pattern of capacitance coupling.• Inductance coupling.• Electromagnetic wave radiation.• Common impedance (including the grounding system) coupling.To prevent EMI, use the following guidelines:• If AC power is used, use a single-phase three-wire power receptacle with protection earth (PE)to filter interference from the power grid.• Keep the switch far away from radio transmitting stations, radar stations, and high-frequencydevices.• Use electromagnetic shielding, for example, shielded interface cables, when necessary.• To prevent signal ports from getting damaged by overvoltage or overcurrent caused by lightningstrikes, route interface cables only indoors.Laser safetyWARNING!The switch is Class 1 laser device. Disconnected optical fibers or transceiver modules might emitinvisible laser light. Do not stare into beams or view directly with optical instruments when the switchis operating.Installation toolsNo installation tools are provided with the switch. Prepare the following tools yourself as required:• ESD wrist strap• Flat-blade screwdriver• Phillips screwdriver• Needle-nose pliers• Diagonal pliers• Crimping tool• Marker• Heat gun