[time-nuts] Rubidium freq standard - temperature

Jerry Hancock jerry at hanler.com
Fri Dec 1 00:54:48 EST 2017


Mark, I agree.  I tried scoping some pins.  I see a few different levels and one pin has what looks like a clock signal with a period of about 4.2ms.  Other than that, hard to tell without a manual.

I know people went so far as to contact Perkin Elmer without luck, I had heard they had acquired EG&G.

I wouldn’t mind sending one to someone that could do a better test on it.  I’ll play around with them if and when I get the TPLL setup working. 


> On Nov 30, 2017, at 9:39 PM, Mark Sims <holrum at hotmail.com> wrote:
> 
> I doubt that it would be a direct mapping to a 9-pin serial connector.  And probably would not be outputting anything unless prompted.  It might be useful to scope the pins and see if anything looks like serial data.  Even if it has a serial port, without some kind of manual, it is probably useless.
> 
> If it not  RS-232 compatible voltage tolerant and you connect a +/- V RS-232 signal into it you could burn something out.
> 
> ---------------
> 
>> I opened it up, JT1 has 9 pins. What are the odds? I think I have to hook something up to it and see if there is anything on 2 or 3, no?
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