This command turns on Relay A.
Keyboard Command: on
When controlling a machine by the pod the signal line for relay A is made true.
By legacy default this is pin 6.
The ArmPod can assign the signal pin on the parallel port connector by software configuration. The CamPod assigns this signal to pin 6 but it can be jumpered to other pins.
Clicking on the bottom status bar panel 'Relay A' will toggle the relay A.
The Home key on the Keyboard will toggle the relay A also.