[time-nuts] FE-5680A pin 6?

jmfranke at cox.net jmfranke at cox.net
Sat Sep 12 13:45:42 UTC 2015


There are many options. Describe the connector(s). Some have more than one connector. What have you applied to each pin? Do not say you applied +15v AND +5V, etc. without saying which pins. 

John WA4WDL


---- Bob Camp <kb8tq at n1k.org> wrote: 
> Hi
> 
> There are far more unique pinouts for the 5680 than anybody can keep track of. Three also is very little that ties the markings on the unit to a specific pinout. If you are getting -5V, my guess is that you have an RS-232 output on that pin. 
> 
> Normal drill is to go back to the seller and see what they do or don’t know about it. 
> 
> Bob
> 
> 
> > On Sep 10, 2015, at 9:06 PM, Nick Sayer via time-nuts <time-nuts at febo.com> wrote:
> > 
> > I’ve acquired an eBay 5680. I’ve hooked it up to +15 and +5 and am getting 10 MHz out and the test pin is low. The unit is warm and within any reasonable expectations, it appears to be working properly.
> > 
> > What I wonder about is pin 6 on the connector. Google results seem to indicate that that’s supposed to be a PPS output, but what I get on it is a fixed -5v or so. Anybody know what this signal is supposed to be?
> > 
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