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US08082453B2 Power sharing between midspan and endspan for higher power PoE 有权
中等跨度和超大功率PoE之间的功率共享

Power sharing between midspan and endspan for higher power PoE
Abstract:
Methods and systems for higher power PoE are provided. Embodiments overcome system limitations to PSE power scaling by using an endspan-midspan configuration which allocates power to the PD from both an endspan PSE and a midspan PSE. Embodiments are particularly suitable for deployed PoE systems having limited power supplies and/or ports designed for lower power. Further, embodiments include power management schemes to enable the proposed endspan-midspan configuration to intelligently allocate power between the endspan PSE and the midspan PSE according to required PD power.
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