PoE Injector, ZOTER PoE Power 100 Mbps Ethernet Cat5 LAN DC 48V 15.4W 802.3af Mode A Single Port for IP Security Cam PoE (Power Over Ethernet) refers to the existing Ethernet cabling infrastructure Cat.5 do not make any alteration of the circumstances, for a number of IP-based terminals (such as IP telephones, wireless LAN access point AP , network cameras, etc.) to transmit data signals at the same time, but also for the provision of DC power supply such equipment technology. POE technology to ensure the safety of the existing structured cabling at the same time to ensure the normal operation of the existing network, minimizing costs.