Im completely new to all this. I have mastercam as my programing method and cimco as my transmitor and receiver and a osp 7000 as a control. Im using a rs 232 cable but since i dont have an extra port im using a usb adaptor to a 9 pin. Then the 9 pin hooks to the cable that hooks to the machine. So its a 9 pin to a 25 pin. I can send files from machine to the computer but when i try to send a program from computer to machine i get a error on my control that says rs232 overload. any advise would be appreciated