Okay I shorted 2&3 and no return to the screen when connected to the Rpi2. The same test resulted in a return of characters when connected to the win7 box. 73 Don KU6V -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.hamvoip.org/pipermail/arm-allstar/attachments/20160219/434b7830/attachment.html>