hi, joe! are you still here? I need your help, i have a mc500v machine with the yasnac m3000 control , there are a tape reader and a communication board in it. I think the borad is used to instead of the tape reader. a serial port rs232 type to pc. do you know how can i use the rs232 port? what is the right setting for it? data bits, parity check, stop bit, baud rate? I hope you can help. thanks tim.