Security speed dome camera 3D keyboard controller. Using 3 axis joystick to control the Pan/Tilt direction and speed of the dome camera. Up to 32 speed dome cameras. 2000 feet maximum distance communication. Maximum of 255 addressable preset points and 1~6 tours. Using EIA/RS-485 electrical interface between the keyboard and the the receiver Using 3 axis joystick to control the Pan/Tilt direction and speed of the dome camera. The speed of the pan/tilt mechanism is controlled by the angel of the joystick during operation. By changing the tilting angle of the joystick you can adjust the speed evenly and the camera will be focused automatically in the course of your scan to keep images in focus. Background light Operate the dome camera at different speed setting, speed switching smooth and stable Control the pan tilt auto line scan, speed and direction can be set as well Set or call the set points and tours. Maximum of 255 addressable preset points and 1~6 tours.  DOWNLOAD FAQ Technical Specifications Communication mode RS-485 / RS-422 Baud Rate of Communication 1200 Bps, 2400Bps, 4800Bps, 9600Bps Distance of Communication 2000 feet in maximum Power Supply DC9V~12V Number of Controlled Speed Dome Camera up to 32 Weight 1.5 lbs