The TR560x8 is designed for use with the modular rack system. The system holds modular cards in any combination, using the VH3200 card cage (not included). This modular plug-in feature allows the system to be custom configured for each application and provides easy expandability. The TR560x8 is designed for operation over Category 2 or better twisted pair cable. The system works equally well over existing communication and computer network spare pairs or new cable installations. A highly balanced transmitter output design assures that the system will not interfere with other equipment on the network. Advanced receiver electronics provide complete immunity from ground loop, hum and noise to produce maximum video quality with minimum loss. A DIP switch on the receiver unit provides incremental adjustment of gain and frequency compensation to allow the system to be fine-tuned for an existing cable. This unique feature provides adjustment for optimum performance over the entire operating range and also allows cable length to be estimated with a wide safety margin. The TR560x8 includes only the receiver card.