Press more than 2 seconds, turn on or off the device ,short press to turn on or off
the menu display
Near focus: Focus the image nearby
Far focus: Focus the image faraway
Open/set ,Confirm the setting of parameters, open or enlarge the aperture
Return/Close : Return or cancel while setting parameters of the menu, close or
decrease the aperture
Upward, set function or add parameter. Tilt the PTZ upward
Rightward, select the parameter whose value will be changed. Add the value of the
parameter. Pan the PTZ right
Leftward, select the parameter whose value will be changed
Downward, set function or reduce the value of the parameter. Tilt the PTZ
downward
Open/set ,Confirm the setting of parameters, open or enlarge the aperture
Return/Close : Return or cancel while setting parameters of the menu, close or
decrease the aperture
Multimeter interface (Optional)