Holly Platypus! I tried to connect a prove plate to my C-10 board (see attached jpeg ) from pin # 12 to the plate and ground connection to the spindle. However, the digitized light in Mach3 Troubleshooting Tab is on without the plate been connected. I tried the input jumper-up, the probe works but not the e-stop or the limit switches. Please refer to the attached jpeg and advise. Thank you