... Speed/PTZ DOME CamerasLED Display and RS485 Multi ProtocolSupport Pelco-D, Pelco-P, Pelco-D1, Pelco-D2Easy and Friendly Setupkeyboard Control ... ptz, it is the main equipment for man-machine interface in surveillance system, can be used as main keyboard or ... , convenient, each to understand, plentiful information, etc. In-built multi-protocol: Pelco-D, Pelco-P, Pelco-D1, Pelco-P1, Newmaximum 1.5KM** ( ...