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Could it be ANY device that has ethernet connection?
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Could it be ANY device that has ethernet connection?

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I have a &nbsp;Netgear 8-port 10/100 switch with 4 PoE ports. &nbsp;How does the PoE ports work? &nbsp;Do they automatically send power over the ethernet to a device that is designed to recieve that type of power?
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I have a  Netgear 8-port 10/100 switch with 4 PoE ports.  How does the PoE ports work?  Do they automatically send power over the ethernet to a device that is designed to recieve that type of power?

How does PoE work?

Networking hardware includes the physical devices facilitating the use of a computer network. Typically, networking hardware includes gateways, routers, network bridges, modems, wireless access points, networking cables, line drivers, switches, hubs, and repeaters. But it also includes hybrid network devices such as multilayer switches, protocol converters, bridge routers, proxy servers, firewalls, network address translators, multiplexers, network interface controllers, wireless network interface controllers, ISDN terminal adapters and other related hardware.

Networking Hardware-Other

A switch is a device that filters and forwards packets of data between LAN segments. Switches operate at the data link layer or the network layer of the Open Systems Interconnection (OSI) Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs. A hub is a connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports; when a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.