The SLA40 allows the use of universal twisted pair (UTP) wiring for video transmission. Avoid costly and bulky coaxial cable. The SLA40 connects directly to a twisted pair thought two screw terminals on the balun. The other end of the balun connects to the video source (camera) with the BNC connector. Video can run up to 1,000 feet without a power supply using UTP (a SLA40 is required at each end of the UTP run). A 70 dB common mode rejection rating assures a stable, noiseless transmitted image. A BNC to RCA adapter and a short BNC extension cable is included to facilitate connection to a variety of camera and monitor/recorder requirements.