The Bolide Technology Group BE-DR-AD300 allows PTZ control signals to be sent over a standard coaxial BNC cable. This way, you can replace a fixed camera with a PTZ camera without having to run any control cabling. Simply connect the BE-DR-AD300 to your controller device or DVR - via its RS485/RS422, Manchester, or BI-Phase interface - and the control signal will be sent over the existing BNC cable to your PTZ camera. By manipulating DIP switches on this unit, you can set it to communicate with most major control protocols including the widely used Pelco P, Pelco D, and Vicon communication codes. LED indicators on the unit let you see at a glance transmitting and receiving status.