[time-nuts] Datum TS-2100 Rubidium

Greg Dowd GDowd at symmetricom.com
Tue Jul 20 13:19:40 EDT 2010

I think the Rb version went in a taller case?  As for the reboot,
probably depends on where you are probing :-)
My proto unit from 1996 is still happily ticking along on my bench in
the lab with an MTI oven that still has tuning range.  

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Julien Goodwin
Sent: Tuesday, June 29, 2010 4:27 AM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] Datum TS-2100 Rubidium

On 28/06/10 21:36, Julien Goodwin wrote:
> Up next is to convert the darn thing to Rubidium, like it was meant to
> be when I purchased it (insert rant here).

OK so the pinout vaguely matches, the TS-2100 is *very* twitchy on the
alarm circuits, even a 1Mohm scope (well, it's 1M in theory, cheap
Rigol[1]) tripped it to reboot a few times.

But where in the world are you supposed to *put* the darn LPRO
oscillator, it's too tall to fit above the board, and there doesn't look
to be enough room between the back of the front panel and the main

I'm also not sure about the power supply thing, seeing only the single
post to time-nuts about it.

I'd love photos, but I'd assume that most people that have one it sits
in a rack running.


1: Actually 'tis one of the 50Mhz units "hacked" to 100Mhz operation, a
very nice Tek 11k analog scope was reserved, but the seller appears to
not want my business going silent after several prods.

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