1. Multi-functional design, can realize the setting and calling of camera head, high-speed dome, constant speed dome, low-speed dome, lens control and preset point 2. Input voltage: DC12V/500mA 3. Power consumption: less than 5W 4. Communication interface: RS485 bus 5. Communication distance: 1500m (0.5mm twisted pair) 6. Communication protocol: PELCO-D, PELCO-P, SAMSUNG, AD, PANASONIC 7. Baud rate: 9600 8. Communication parameters: 8 data bits, 1 stop bit, no parity 9. Joystick: - 2 axis: joystick to control the ball machine up and down, left and right - 3 axis: joystick control ball machine up and down, twist the joystick ball machine can be zoomed - 4 axis: joystick control the ball machine up and down, twist the joystick ball machine can be zoomed, joystick more OK button 10. Display: LCD 11. Weight: about 890g