Power over Ethernet is known by the acronym PoE and sometimes termed PoL (Power over LAN) or Inline Power. Power over Ethernet allows devices to transfer electrical power via Ethernet cable. A network switch or computer can supply power to components such as VoIP phones, wireless LAN access points, and other appliances. With PoE, these external devices don’t need a separate power cord or outlet. PoE ports provide both network connectivity and electric power for the device connecting to the ports. EX-series switches provide PoE network ports with the various switch models providing either 8, 24, or 48 PoE ports. These ports can be used to connect VoIP telephones, wireless access points, video cameras, and point-of-sale devices to safely receive power from the same access ports that are used to connect personal computers to the network. To use a port in this manner, you must explicitly configure the port interface for PoE. When you configure a PoE interface, its ability to supply powe
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