Network Video Technologies NV-452R Video Receiver is an active amplified device that allows the reception of real-time monochrome or color video on up to one mile 1.6km using Category-2 or 3 Unshielded Twisted-Pair UTP telephone wire, or up to 1.5 miles 2.4km using Category-5. The unparalleled interference rejection and low emissions of the Model NV-452R allow long run video signals to co-exist in the same wire bundle as telephone, datacom, or low-voltage power circuits. This allows the use of shared or existing cable plant. Ground-lifting ensures no annoying hum-bars when ground potential differences exist. With built-in transient protection, damaging voltage spike problems are eliminated.