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High PoE made simple

Posted: 03 Mar 2008  Print Version  Bookmark and Share Subscribe

Keywords: PoE  Ethernet  power  Power-over-Ethernet  HPoE 

[Summary of tips] High Power-over-Ethernet (HPoE) standards are still to be resolved. What is expected by most is that the voltage source will be increased to 53Vdc, usable current from each line to about 750mA, and the total resistance in the cable be limited below 12.5Ω. If one wishes to design for what will probably be the worst-case sce......
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