How to make your own ETX to Autostar serial cables

Disclaimer: These methods and tips are from my own observations, I make no warranty to their acccuracy or safety. Use at own risk.

This is a collection of tips and suggestions that I have collection from various sources, namely Marc M. Triola, M.D. ( for his tips on parts from Radio Shack, as well as Cameron Brennan ( for the pinout to a working serial cable.



Thanks to Cameron Brennan ( for the original pinout diagram.

Autostar pinSerial port pin
#1#3 (PC Transmit)
#2#2 (PC Receive)
#3no connect
#4#5 (ground)


Liem Bahneman (