Feature: 1. GOOD COMPATIBILITY: This PTZ camera controller is compatible with most dome security and monitoring IP camera, set preset patrol mode and AB scanning 2. MONITORING PROTOCOL: The PTZ camera keyboard controller supports standard network monitoring protocols, with easy operation, and has strong scalability. 3. COMM PARAMETERS: The controller adopts RS485 bus comm interface, with a comm distance of up to 1500 meters (0.5mm twisted pair), has strong practicality. 4. 2D JOYSTICK AND LCD: The analog dome camera controller uses 2D joystick to control the up, down, left, and right, equipped with LCD display, clear and intuitive. 5. APPLICABLE SCENES: The PTZ camera controller is widely used in public security bureau, government, telecommunication department, procuratorate, court, bank, education, taxation, etc. Specification: Item Type: Analog PTZ Keyboard Controller Power Consumption: Less than 5W Comm Interface: RS485 Bus Comm Distance: 1500 meters (0.5mm Twisted Pair) Comm Protocol: For PELCO-D, for PELCO-P, AD Comm Parameter: 8 data bits, 1 stop bit, no verification Joystick: 2D (Joystick Control Up, Down, Left, Right) Display: LCD. Package List: 1 x Analog PTZ Keyboard Controller1 x Power Plug1 x User Manual