The POE-48PBv2 is a 48V PoE adapter with DC injector. It takes the electricity from the Power Adapter and the data from the Ethernet network, then combined them into a signal that can be transmitted through the UTP/STP cable. Combination of POE-48PBv2 and PoE devices, such as PoE AP, PoE IPCam, you can easily deploy PoE network environment.