I need info on getting rs232 dnc working on this control on the back it has 2-25 pin connectors one female labled recorder the outher male unlabled what one do I use to down load programs. I have tried the unlabled port with no luck . I am using bobcad v17 to send program to machine through 9-pin com port on pc and have tried many pin configerations last night I looked at the wiring on the 25 pin male port on the controller
pin 2-white
pin 3-red
pin 6-orange
pin 7-black grounded
pin 20-blue