[time-nuts] Symmetricom TimeSource 3000 3500 Question

[Andrew Carey]

We have those TS3500 units at work and I think this is the converter. I don't have one handy to check but it is a Symmetricom product. 

http://www.symmetricom.com/resources/download-library/documents/datasheets/downup-converter/


On Dec 5, 2013, at 0:50, Azelio Boriani <azelio.boriani at screen.it> wrote:

> Here you can find a manual
> <http://www.syncworks.com/pdf/symmetricom-timesource-3000/097-72050-01-Rev-M.pdf>
> in the manual there is a reference to an "IF converter" so, yes, you need one.
> 
> On Wed, Dec 4, 2013 at 11:29 PM, Skip Withrow <skip.withrow at gmail.com> wrote:
>> Hello Nuts,
>> 
>> I have a Symmetricom 3500 shelf minus GPS receiver.  The 3xxx series looks
>> like it uses a proprietary IF interface that shoots 18V up to the GPS
>> receiver, and I don't know what comes down.  There has to be data though
>> since the box can report lat and lon.  Don't know if there is also any
>> frequency reference signal, but based on the function of the box you might
>> think that there is.  The physical interface is just a single piece of coax.
>> 
>> Does anyone know what the 'proprietary IF interface' is?  Does anyone have
>> an extra GPS receiver laying around that they would like to get tid of (or
>> where I could find one) for these boxes?
>> 
>> Thanks in advance.
>> 
>> Skip Withrow
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