Interesting you would mention that! After my first post I pulled the board with the connector and was looking at the traces from the DB-25. One of the chips nearby is a SN75176AP which I found a PDF saying it is a differential bus transceiver (RS422). I have a SBC that you can set the com port to RS232/422/485, so that's one little hurdle overcome.
There's quite a few pins wired, at first I was comparing it with the RS232 DB-25 which most pins made sense. I should probably look up the others and see how they differ and such (I'm clueless when it comes to RS422/485, so I'll be googlin' tonight). Jason -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jack Hudler Sent: Wednesday, May 23, 2007 6:54 PM To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] Kode 375-928 Display - Help! It might be RS-485 and so multiple displaies could have its own address on a multidrop setup. About the only trick there is finding out if its 2 or 4 wire 485 (probably 2 because of the address). Think I've seen some USB to 485 converters on the market, but you might get away with driving it with RS-232. Go Google RS-485 _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
