... CCTV keyboard controller -Control 255 PTZ -Display protocol with real time baudrate -Refurbish firmware program on line PTZ CCTV keyboard controllerBasic ... communication compatibility, built-in many kinds of protocols• Keyboard operation password on/off/lock function• Key-press warning ... -duplex Cascade connection number16 sub-control at most,controller ID:0-15Joystickup,down,left,right,zoom Interface ...