Try going through all the speeds starting at 300. Sounds like a baud rate mismatch to me from the symptoms
Also try 8 bits 1 stop no parity Content by Scott Typos by Siri > On Jun 10, 2015, at 10:28 AM, David Andersen <d...@pobox.com> wrote: > > I'm throwing my hands up in the air - I don't have the time to wrestle my > silly mac into trying to talk to the box, unless someone has quick advice > on something I might be doing wrong. > > z3801a, jumpered to RS232, modified with an internal switching power supply > (see photos below). Power light comes on, unit is outputting stable > 10MHz. Doesn't GPS lock, but that makes sense, since I haven't been able > to issue a SURVEY command and I don't live where I used to. > > The internal green status light is blinking (as normal), suggesting that > it's probably happy and I'm an idiot for not being able to make it work, > but I don't vouch for anything about it past the 10mhz being there. The > double-oven oscillator is clearly happy given the 10mhz (compared against a > working Thunderbolt). > > Hooked up a serial cable at 19200, 7, O, 1, but only got a garbled little > prompt back - no response to standard z3801a commands. I *think* I have > the cable configured properly. I opened it up and checked the RS232 > jumpers and they're correct. > > I'm open to advice on getting the serial working under my Mac or Linux, or > anyone who wants to relieve me of the burden of z3801a ownership and take a > risk that it's a fixer-upper. :-) I suspect that in some previous life, I > switched it over into a binary mode of some sort while using it to sync > something, but I can't for the life of me remember what I might have done. > > Some reasonable price plus shipping and it's all yours... I'm trying to > de-clutter in preparation for a sabbatical on the other side of the country. > > Pictures: > > https://www.dropbox.com/s/ursszjgie8m1xj8/2015-06-09%2011.57.16.jpg?dl=0 > https://www.dropbox.com/s/it8d2f65ztn4rkq/2015-06-09%2011.57.24.jpg?dl=0 > https://www.dropbox.com/s/1p1g6xrapzdmvzh/2015-06-09%2011.59.56.jpg?dl=0 > > Thanks! > > -Dave > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.