Automatic surveillance pan system ?V1? is a basic automatic surveillance system for all direction. Applying the standard ?Pelco-P? for communication agreement, it?s easily compatible with the different kinds of control keyboards in the market. It applies industrial standard ?RS485? for main cable (2 wires for communication), under without relay mounted in this circuit, one main cable can bear upto 32 channels of camera with automatic surveillance pan (for all direction pan). The maximum distance for cable connected is 1,200 metres. This automatic surveillance pan system ?V1? consists of ?automatic surveillance pan? & ?intelligence control panel?.