以太网供电 Power over Ethernet
（重定向自POE adapter）
以太网供电（Power over Ethernet，简称PoE）也称PoE供电，是一种可以在以太网路中透过双绞线来传输电力与数据到设备上的技术。
POE adapter
中文百科
英语百科
Power over Ethernet 以太网供电
（重定向自POE adapter）
Power over Ethernet or PoE describes any of several standardized or ad-hoc systems which pass electrical power along with data on Ethernet cabling. This allows a single cable to provide both data connection and electrical power to devices such as wireless access points or IP cameras. Unlike standards such as Universal Serial Bus which also power devices over the data cables, PoE allows long cable lengths. Power may be carried on the same conductors as the data, or it may be carried on dedicated conductors in the same cable.
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