H3C Technologies H3C S5130 Series Switches - Manual (Page 10)

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• 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 protective earth (PE) to
filter interference from the power grid.
• Keep the switch far away from radio transmitting stations, radar stations, and high-frequency
devices to make sure the EMI levels do not exceed the compliant range.
• Use electromagnetic shielding when necessary. For example, use shielded interface cables.
• To prevent signal ports from getting damaged by over-voltage or over-current caused by lightning
strikes, only route interface cables indoors.
Laser safety
WARNING!
Do not stare into any fiber port when the switch has power. The laser light emitted from the optical fiber
might hurt your eyes.
The S5130-EI switches are Class 1 laser devices.
Installation tools
• Flat-blade screwdriver
• Phillips screwdriver
• ESD wrist strap
All these installation tools are user supplied.