HP 1920-16G Switch Guia de Início Rápido descarregar pdf (Página 7)

Gas Maximum concentration (m

)

0.05

0.01

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.

• 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-frequency

devices.

• Use electromagnetic shielding when necessary. For example, use shielded interface cables.

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HP 1920-16G Switch Guia de Início Rápido Página 7