The controller should not permit any current out of the device to the handset or any I/O pins unless it is actually controlling the system. For example, the system should not output anything if the controller is in the middle of being re-flashed, re-programmed, locks up or is not running a valid control program.
The controller should not permit any current out of the device to the handset or any I/O pins unless it is actually controlling the system. For example, the system should not output anything if the controller is in the middle of being re-flashed, re-programmed, locks up or is not running a valid control program.