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Cooling
Leave a minimum of 10 cm (3.94 in) of clearance around the device.
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A good ventilation system is available at the installation site.
ESD prevention
The device might be damaged by the following Electrostatic discharge (ESD) sources:
Outdoor environment—For example, high-voltage power line and lightning.
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Indoor environment—For example, floor carpet.
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Device internal system.
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To prevent ESD damage, follow these guidelines:
Ground the device reliably.
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Take dust-proof measures for the equipment room. For more information, see "Cleanliness."
Maintain the humidity and temperature at acceptable levels. For more information, see
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"Temperature and
Wear an ESD suit and an ESD wrist strap, wear ESD gloves, and remove any electrically conducting
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objects such as watch or jewelry before handling the device.
EMI
All electromagnetic interference (EMI) sources, from outside or inside of the switch and application
system, adversely affect the switch in the following ways:
A conduction pattern of capacitance coupling.
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Inductance coupling.
Electromagnetic wave radiation.
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Common impedance (including the grounding system) coupling.
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To prevent EMI, perform the following tasks:
If AC power is used, use a single-phase three-wire power receptacle with protection earth (PE) to
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filter interference from the power grid.
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Keep the switch far away from radio transmitting stations, radar stations, and high-frequency
devices.
Use electromagnetic shielding, for example, shielded interface cables, when necessary.
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Lightning protection
To protect the device from lightning, follow these guidelines:
Make sure the chassis is reliably grounded by using the grounding cable.
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Make sure the grounding terminal of the AC power receptacle is reliably grounded.
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Install a lightning protector at the power input end.
humidity."
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