Power over Ethernet refers to the existing Cat.5 Ethernet cabling infrastructure does not make any changes in the situation, for some IP based terminal (such as IP telephone, wireless LAN access point AP network camera, etc.) for the transmission of data signals at the same time, can also provide DC technology for this kind of equipment. Outdoor PoE switch that supports Ethernet power supply.
In many cases, because of the inconvenience of deploying the power supply or the deployment of high cost of power supply and improve the safety of electricity, etc., it will consider taking PoE injector related equipment for power supply.
Most of the time, the devices that can be powered by PoE have IP surveillance cameras, wireless AP, and IP phones, while the power of the device is different, may also require different standard PoE devices to support.