1. Smart Twisted Pair Video Balun are designed for CCTV signal transmission over unshielded twisted pair wire 2. Three position range switch for gain select on transmitter. 3. 4 position distance range switch on Receiver 4. UTP Video Balun with built in transient protection and ground lifting. 5. Specification of the CCTV Video Balun: single-channel 6. Frequency response: DC-6MHz 7. Common-mode/differential-mode rejection: 15kHz to 6MHz 60dB type 8. Impedance: BNC 75 Ohms 9. UTP/connector: 100 Ohms or RJ-45 100 Ohms 10. Environment: - Temperature: 0 to 50 degrees Celsius - Humidity: 0 to 95% 11. Wire type: - Full-motion CCTV video at long distances (9,000ft / 3000M) - Built-in linearity, sharpness and charoma control - Enable unparalleled common interference rejection - Built-in transient protection - Improve the picture definition when connet to DVR or Quad, and reduce noise affects - Dimensions: 76 x 40 x 26mm

http://olla.gr/active-cctv-utp-twisted-pair-video-balun-transmitter-and-receiver/