HP 1920-24G-PoE+ (370W), 1920-8G-PoE+ (65W), 1920-48G, 1920-8G-PoE+ (180W), 1920-16G manual Emi

Gas	Maximum concentration (mg/m3)
NH3	0.05
Cl2	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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