[time-nuts] Special connector for Symmetricom X72 rubidium standard
ch at murgatroid.com
Thu Aug 17 04:11:13 EDT 2017
I'm interested in a piece or two if you do this. Happy to review
schematics and layout, too. -- Christopher AI6KG
On Tue, Aug 15, 2017 at 8:28 AM, Mark Sims <holrum at hotmail.com> wrote:
> Symmetricom sold some interface boards for the X72. They are 0.32-ish
> inch thick PCB's with a dual sided edge tab pattern on them. The PCB
> edge tab will insert into the connector on the X72. The interface board
> for my X72's only breaks out 12 pins... a lot of Ebay X72's come with that
> 12 pin connector board... I think that they were pulls from some piece of
> equipment. My X72's only had 250 hours on them.
> I have been thinking about laying out an X72 interface board that has the
> edge tab broken out to a standard 26 pin 0.1" pattern, a RS-232 inteface,
> BNC's for the 10 MHz, ACMOS output, 1PPS in, 1PPS output, etc. The board
> would also have a way to connect it to the SA22.
> Lady Heather now talks to X72's (and probably X99's and SA22's). I have
> implemented a disciplining algorithm for use with X72s that have the older
> firmware that does not do disciplining... like probably 99% of the X72's
> out there. Symmetricom's code only seems to keep the 1PPS aligned with 300
> ns. My code attempts to keep it within 100 ns.
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> and follow the instructions there.
More information about the time-nuts