TR-4P/70 is designed for video signal transmission and power supply via twisted pair cable (UTP, FTP)The device adjusts the impedance of a 75Ω coaxial cable to the impedance of a symmetrical cable, providing video signal transmission up to 400m (twisted pair cable of 5 categories) and eliminates asymmetrical interference
The video signal uses one pair of twisted pair cables, the other three pairs are used to transmit dc supply voltage of 12V. This is not compatible with the PVD standard, but this solution allows you to power devices over a longer distance