The TW3001AT is a single-channel active transmitter that can transmit live video over unshielded twisted pair (UTP) cable. Cat5e or Cat6 cable is recommended. The top of the unit has a DIP switch that allows you to select the distance (500-3,000 feet/152.4-914.4 meters) when using the transmitter with a passive receiver. The maximum distance when connecting a TW3001AT to a Pelco active receiver is set to 4,000 feet (1,219.2 meters) automatically. You can increase this distance to either 4,500 or 5,000 feet (1,371.6 or 1,524 meters) using the DIP switches. The fifth switch is for selecting receiver type (active or passive). For Coaxitron® control devices, 750 feet (228.6 meters) is the maximum distance over UTP. The TW3001AT allows for multiple applications. For example, you can connect it to a matrix switcher, such as the CM6800, using a Pelco passive transceiver. Pelco cameras connect to the BNC connector on the TW3001AT.