This VideoSecu VB201 video transceiver is a passive (non-amplified) device that allows the transmission of real-time monochrome or color video over Unshielded Twisted-Pair (UTP) telephone wire. Passive design provides immunity from noise and interference and does not require power supplies. Purpose of the Video Balun is to allow traditional 75 ohm coax cable to be replaced by Category 5 (or better) twisted pair in the CCTV security and surveillance environment, thereby allowing CCTV camera and monitoring equipment to be deployed more cost-effectively using structured cabling techniques. These CCTV baluns also work over existing UTP cabling, making them perfect for use in nearly any building or across an entire campus. It works with any analog based video equipment that supports NTSC, PAL or SECAM systems; CCTV cameras, video multiplexers, video switchers, monitors, scan converters, signal boosters.