If you have not seen one here is a good example. They make it easy. New-MAX232-RS232-TTL-Converter-Adapter-Module-Board<http://www.ebay.com/itm/New-MAX232-RS232-TTL-Converter-Adapter-Module-Board-/180951092526?pt=LH_DefaultDomain_0&hash=item2a21868d2e#ht_1976wt_1180> But I think I had to add a jumper to get the PPS signal onto the DCD pin. Also the PPS needs to be inverted if I remember correctly.
On Mon, Aug 13, 2012 at 3:26 PM, Don Latham <[email protected]> wrote: > Even easier is a 5v rs232 to USB board. > Don > > paul swed >> I have done the exact same thing. Pretty quick work and the maxim chips >> make it pretty easy >> Regards >> Paul >> WB8TSL >> >> On Mon, Aug 13, 2012 at 12:07 PM, Chris Albertson >> <[email protected] >>> wrote: >> >>> On Mon, Aug 13, 2012 at 6:47 AM, <[email protected]> wrote: >>> > Does anyone have a source for UT+ interface boards? >>> > Like the McKinney boards from TAPR (that are no longer available). >>> >>> I hand wired one using a 4x6 inch prototype board. It is not very >>> complex. >>> >>> The best why to do the TTL to RS-232 conversion is with this little >>> device you can find on eBay that is a MAX232 chip built into a DB9 >>> shell >>> >>> Chris Albertson >>> Redondo Beach, California >>> >>> _______________________________________________ >>> time-nuts mailing list -- [email protected] >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >>> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> > > > -- > "Neither the voice of authority nor the weight of reason and argument > are as significant as experiment, for thence comes quiet to the mind." > R. Bacon > "If you don't know what it is, don't poke it." > Ghost in the Shell > > > Dr. Don Latham AJ7LL > Six Mile Systems LLP > 17850 Six Mile Road > POB 134 > Huson, MT, 59846 > VOX 406-626-4304 > www.lightningforensics.com > www.sixmilesystems.com > > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. -- Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
