In a similar vein, we’ll have used power over Ethernet, or PoE, to power devices such as webcams. Buy a PoE router or switch, plug in a cable, and away you go! But what lies behind PoE ...

PoE is a system that allows you to use a LAN cable as a power cable, making it possible to use a single LAN cable for both communication and power supply. This has the advantages of eliminating ...