Passive video transceiver via twisted pair of 4 channels. It can operate as transmitter or receiver, and it permits to transmit the signal of up to four video cameras via a single UTP cable.
The adapter has 4 BNC connectors on one end for connecting to the cameras (if it works as transmitter) or to a DVR (if it works as a receiver).
At the other end, it has two connectors for UTP cable, by RJ45 or by clamp of 8 contacts +/-, for connection of the cable by wires.
The maximum distance between the end that connects to the camera and the end that connects to the video output is 600 meters for black and white signals and 400 meters in the case of colour signals. It can work with active receivers to increase the range.