Emi - H3C WX1800H Series Installation Manual

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Take dust-proof measures for the equipment room.
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Maintain the humidity and temperature in the equipment room at acceptable levels.
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When working with the device, always wear an ESD wrist strap or gloves and ESD garment,
and remove conductive objects such as jewelry or watch. Make sure the wrist strap makes good
skin contact and is reliably grounded.
Attaching an ESD wrist strap
No ESD wrist strap is provided with the device. Prepare one yourself.
To attach an ESD wrist strap:
Wear the wrist strap on your wrist.
1.
Lock the wrist strap tight around your wrist to maintain good contact with the skin.
2.
Secure the wrist strap lock and the alligator clip lock together.
3.
Attach the alligator clip to the rack.
4.
Make sure the rack is reliably grounded.
5.
Figure1-2 Attaching an ESD wrist strap (WX1840H)

EMI

All electromagnetic interference (EMI) sources, from outside or inside of the device and application
system, adversely affect the device in the following ways:
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A conduction pattern of capacitance coupling.
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Inductance coupling.
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Electromagnetic wave radiation.
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Common impedance (including the grounding system) coupling.
To prevent EMI, use the following guidelines:
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Take effective measures to filter interference from the power grid.
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Keep the device far away from radio transmitting stations, radar stations, and high-frequency
devices.
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Use electromagnetic shielding, for example, shielded interface cables, when necessary.
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