The PTZ Controller supports PELCO-D, PELCO-P and VISCA Control protocol^^The PTZ Controller supports RS485, RS422, RS232 multiple interface control signals, by RS485 control bus, up to control 255 pcs PTZ cameras and connect 128 pcs cameras in parallel at the most as well as 7pcs series-connected PTZ cameras^^All inputs and outputs communication ports use anti-radar designpowerful anti-jamming performance, the standard transmitting distance is up to 1200 meters^^The PTZ Controller control cameras rotation, zoom, aperture, focus and other camera parameter settings^^The PTZ Controller operate password on/off/lock function