On Fri, 16 Oct 2015, Brad wrote: > Thanks Henk, > I tried that. No prompt comes up with PUTTY on serial set at any baud > rate. Instead on the LED display I get a C, or an S sometimes. Check for activity on lines 2 and 3, if it is a DB25. You have not yet confirmed that you have it cabled correctly (DTE?, DCE? null-modem?)