[time-nuts] Rubidium freq standard - temperature

paul swed paulswedb at gmail.com
Fri Dec 1 11:57:40 EST 2017

hello to the group
OK turns out my egg units are actually the same ts-frs sn1599.
Nice lable thats says what the pin functions are.

1 rf rtn
2 rf
3 rf rtn
4 +24 1.5A cold says my note
5 +24 rtn
6 +24 power same as 4
7 sig rtn
8 reg mon
9 sig rtn
10 lock
11 sig rtn
12 dc light
13 sig rtn
14 xtal mon
15 power rtn
16 + 5 note says .3A constant

No RS 232 apparent and I have not gone inside to look. Maybe later today.
But believe as others this is sort of pre-rs-232. Also no apparent EFC

On Fri, Dec 1, 2017 at 12:39 AM, 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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