In a PoE system, power-source equipment (PSE) injects 56.5 V at a maximum current level of 350 mA onto a standard Ethernet LAN cable. Maximum power at the Ethernet switch is 15.4 W per PSE port.
A research team from the University of Electro-Communications in Japan has invented a fiber optic system that transmits both data and power over the same cable. A research team from the University of ...
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