*NOT backward compatible to Palun Ethernet over Coax. with PoE Connect & Power-up PoE Devices Rack Mount: BA-PX12PALUN II is a compact PoE-powered Balun which can transmit Power and Digital Signal over coaxial cable to POE Compatible device such as an IP camera. With PALUN II, you can easily upgrade the surveillance system from analog to IP, leveraging the existing coaxial infrastructure without re-cabling. Moreover, when it comes to PoE devices, a smart switch design enables PALUN II to better accommodate PoE devices of different class levels. PALUN II supports PoE devices only.**NOT backward compatible to Palun