DESCRIPTION The TR-16E/DC-RACK is designed to video signals transmission and power supplying via twisted-pair cable (UTP, FTP). The device adapts the impedance of coaxial cable 75Ω to the impedance of symmetrical line, ensuring transmission of video signal up to 400m (twisted-pair cable category 5) and eliminates asymmetric interferences. Video signal is sent over one pair of a twisted-pair cable, the remaining three pairs are used for supplying power. The device consists of four independent modules (A, B, C and D - marked on the below picture), what allows to use it at different power configurations. Each module can be powered by a separate adapter eg 12V DC, 24V AC or 40V DC. With a single power supply voltage is applied to the four lines at the same time. The modules can be of course connected in parallel, what enables to use a single power supply adapter to 16 cameras powering.