PowerDsine IEEE802.3 manual HP POE voltage range

Models: IEEE802.3

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HP POE voltage range

HP POE voltage range

„Maximum voltage: 57V (safety consideration)

„What is most optimum value for minimum voltage?

„PoEp group objective; maximum power within practical limit (Power Dissipation, Safety consideration)

„Power dissipation is function of the current

„Increasing minimum voltage reduces current level for the same load power or

„Increasing Power delivery to the load for a given current value.

„Hence same infrastructure delivers more power to PDs for given PSE PS size and cost

„Bottom line: more applications may supported

Larger POEp market

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PowerDsine Presentation

October 2005

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Page 4
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PowerDsine IEEE802.3 manual HP POE voltage range