PowerDsine IEEE802.3 manual Part B

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Part B

Market considerations regarding 802.3at output voltage range

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Contents Vancouver BC, November Part a Objectives HP POE voltage range PoEp minimum voltage 44V 51V Pd power PoEp minimum voltage PoEp Power Architecture-AC Input PoEp Power Architecture-AC Input HP POE Power Architecture-AC Input PoEp Power Architecture-AC UPS PoEp Power Architecture-AC UPS PoEp with Boost circuit PoEp with Add Power Conclusions Part B 802.3af modular installed base considerations „ 802.3af minimum PSE voltage „ Modular switchesHow to solve the conflict „ The Conflict isHow to solve the conflict PD side „ Proposed SolutionHow to solve the conflict PSE side „ Effects on PSE specifications PoEp PSE minimum voltage isSummary Discussion References Annex a Enhanced Classification table