Conclusions

„Increasing minimum PoEp voltage from 44V to 51V would increase overall system efficiency

„Costs of 51V PS and 48V PS are approximately the same and from technical point of view would be beneficial to have minimum 51V in PoEp PSE

„Regardless of output voltage consideration, adding boost circuit for system with batteries back up, would increase battery useful life in POE systems

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PowerDsine Presentation

October 2005

Page 15

Page 15
Image 15
PowerDsine IEEE802.3 manual Conclusions