I've seen situations where it seems that the units aren't being disciplined as they should be. I hope that getting this cable right will solve that problem.
John ---- [EMAIL PROTECTED] said the following on 02/27/2007 06:57 PM: > Pins 1 and 5 on each unit control the failover functionallity. If you > disconnect them entirely on both the XO and RB units, both units will be in > ON mode. But it will be interesting to see what happens when it goes only > one way. > > > ----- Original Message ----- > From: "John Ackermann N8UR" <[EMAIL PROTECTED]> > To: "Discussion of precise time and frequency measurement" > <[email protected]> > Sent: Tuesday, February 27, 2007 17:27 > Subject: [time-nuts] Important RTFG interface information > > >> I just acquired the mysterious interface cable that goes between the >> RTFG-m-XO and RTFG-m-RB units. I have suspected that it wasn't a simple >> crossover cable, because the results I've seen with my homemade >> crossover haven't made a lot of sense. >> >> Here's the scoop: the interface cable is a simple DB-9 to DB-9 ribbon >> cable with the ribbon flipped -- the striped side goes to pin 1 on the >> RB end, and to pin 5 on the XO end. We pretty much knew that. >> >> However, the conductor on the other edge of the ribbon (between pin 5 on >> the RB end, and pin 1 on the XO end) is BROKEN in the middle. >> >> So, there is NO CONNECTION between XO pin 1 and RB pin 5. (It goes >> without saying, but I'll say it anyway, that this means the cable ends >> are not interchangeable -- there is an XO end and an RB end.) >> >> Hope this is helpful. I got a few more interesting bits and pieces >> along with this cable, but I think this is the important news for those >> of us trying to interface these units at home. >> >> John >> >> _______________________________________________ >> time-nuts mailing list >> [email protected] >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> > > > _______________________________________________ > time-nuts mailing list > [email protected] > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
