Control keyboard

Key Attributes.

SA-1B28 Keyboard Controller Feature: * Control keyboard 485 interface, photoelectric isolation technology, strong anti-interference, long distance transmission. * Control Constant / High Speed Dome Camera or decoder address range is 1~127, and do remote control * Operate the speed for high-speed balls PTz * Set preset and invoke for high-speed ball * Control the cameras focus, zooming and aperture by manual