Power Over Ethernet refers to the existing Ethernet Cat.5 cabling infrastructure does not make any changes. At the same time for some IP based terminals (such as network cameras) to transmit data signals, but also for such devices to provide DC input PoE technology.

The outdoor PoE switch eliminates the need for the installation of a wall power connection for the terminal device, thereby reducing the cost of the power socket associated with the support of the terminal device.

PoE injector and PoE switch also provides a greater flexibility to install network connectivity devices in a more difficult place to deploy local AC power.