Switching between RC and RS232 for e-stop

I am using the AX3500 controller on a UGV and would like to use channel 3 on my RC controller to toggle between RC mode and RS232 mode. The idea would be to use the toggle switch as a remote e-stop if something happens while the robot is under computer control.

I have been following the <a target="_blank" href="dev.roboteq.com/dev1/files/apnotes/AN100...0RS232%20to%20RC.pdf">application note. But I was wondering if anyone has done this for this type of application and what RC activated switch was used.

Thanks!
<a target="_blank" href="dev.roboteq.com/dev1/files/apnotes/AN100...0RS232%20to%20RC.pdf">

Dear Sirs,
I want to implement the same emergency stop procedure by switching to RC control from computer control to active the stop. Could someone please reply?
Thankyou

Try using the circuit shown in the manual and on the application note.