[time-nuts] BC637PCI and OCXO
GandalfG8 at aol.com
GandalfG8 at aol.com
Fri Feb 7 18:39:49 UTC 2014
My first card at least is a Datum card so quite old now, and that was fine
doing what you want to do..
You really will need to read the manuals in some detail and I do suggest
downloading the larger of the two files I uploaded, that will give you the
latest versions of the Demo programs that allow adjustment of the card, as
well as the earlier versions of the same and all the manuals
For some things, with earlier versions anyway, it's better to use the
BC635 version of the Demo software, as that comes with a built in help section
which the BC637 version lacks.
I'll try and get a card installed so I can run the software properly again
and if so will come back with more information later.
Regards
Nigel
GM8PZR
In a message dated 07/02/2014 18:25:22 GMT Standard Time, time at patoka.org
writes:
It seems I have first generation of that card. And I was thinking to use
that card as a source of 1PPS and 10MHZ - not to feed it from another
reference. I though it is possible to do some "modding" to replace VCXO
by OCXO.
PCI Board Revision ID : 18 (0x12), Firmware Version : DT10041V11
On 2014-02-07 03:00, mike cook wrote:
> Le 7 févr. 2014 à 00:18, d0ct0r a écrit :
>
>>
>> Hello,
>>
>> Does anybody seen any links to the information how to implement
>> external OCXO to Symmetricom PCI TFP BC635/BC637 ?
>>
>>
> check the Symmetricom datasheets. You don't mention the version you
> are needing info for , IRIG/GPS.. Anyway, all that I glanced at
> show an Exr. 10MHz ref input on pin 1 of the sub-D 15 connector.
> Digital, 40% to 60% or sine, 0.5V to 8V p-p, > 10kOhm.
> ex.
>
>
<http://www.symmetricom.com/resources/download-library/documents/datasheets/bc637pci-v2>
>
>> --
>> WBW,
>>
>> V.P.
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WBW,
V.P.
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