... The joystick of the control device has three types: round, squareness, squareness with button. It works by gear ... true. We also can produce the master controller with spring return, interlock in zero position, also ... (I.e. when impacted) we installed the device with interlock in zero position, the joystick is made ... , switching sequence 6-0-6. One control device can control no more than 2 cam switches. ...