The ABL-1A03-RS is designed for operation over CAT5 cable. This unit works over any existing computer network cable, or new cable installations. Advanced receiver electronics provide complete immunity from ground loop, hum and noise to produce maximum video quality with virtually no loss. Dip switches on the unit provides precise adjustment of brightness and sharp, allowing the system to be “fine-tuned” for any cable. This unique feature provides easy adjustment for optimum performance over the entire operating range and also allows cable length to be estimated with a wide safety margin, when bidding CCTV twisted pair transmission jobs. Transmit CCTV Security Surveillance Camera Video upto up to 3,000ft when used with any passive transciever. Full-motion color CCTV video at distances up to 8,000ft when used with any active transmitter.