Features The VIT keyboard series have various preset functions; such as the ability to set a master or slave control method between two keyboards. The keyboard can control the VPTZ high-speed series dome,VIT-ERD series decoder and VT-DMZ built-in decoder regular-speed dome. JUNSONZC recommends that the user uses preset functions to properly utilize each product. Other features included in the VIT Keyboard series include: - Words and picture input mode, preset points, auto-cruise, dome vari-speed and alarm linkages are - Display for the operating status of the main frame of matrix, keyboard and dome. - Multigrade control and Remote-control of network series - Alarm and message alarms. The VIT230/260 keyboard is the key component that controls the speed dome system. There is a vari-speed vector rocking bar to control dome and global system. Users can control DVRs, decoders, Matrix for cameras and monitors, by keyboard. The user can control the camera''s viewing range independently. It can control up to 256 PTZ cameras.