[time-nuts] Datum 1000B 10 MHz Oscillator pin outs for the DB-9connector?

Brooke Clarke brooke at pacific.net
Wed Jul 20 13:48:42 EDT 2005


Hi Robert:

The part number on the 1000B is 05818-119.

Thanks for the pinout info,

Brooke Clarke


rlutwak at comcast.net wrote:

> About the time I posted the link to the 1000B datasheet, I noticed that it doesn't have the pinout you're looking for (but I went ahead and posted it anyway).  I also noticed that the link to "Product Manual" is effectively dead.
> 
> I sent a note to both the product manager and WWW-site manager to see if we can get the pinouts/manual properly posted.
> 
> Meanwhile, here is the DB-9 pinout (standard 1000B):
> 
> Pin 1:  Electronic Ground
> Pin 2:  Control Voltage Input
> Pin 3:  NC
> Pin 4:  AGC monitor
> Pin 5:  Oven Ground
> Pin 6:  No connection
> Pin 7:  Oven Supply (+24 VDC in)
> Pin 8:  Electronic Supply (+24 VDC in)
> Pin 9:  Case Ground
> 
> Note that there are MANY (at least 10) different versions of the 1000B.  The one that was used in the 5030 cesium module (in your 4060 instrument) has provision for an external coarse adjust pot (through a little hole in the front of your cesium instrument) as well as an oven temperature monitor (so the instrument knows when the oscillator is ready).  The pinout for THAT one is:
> 
> Pin 1:  Electronic Ground
> Pin 2:  Control Voltage Input
> Pin 3:  Coarse tune input (connect this to the wiper of your external 10Kohm pot)
> Pin 4:  +12 Vref (use this for one end of your external 10Kohm pot, ground the other end).
> Pin 5:  Oven Ground
> Pin 6:  Oven control voltage monitor
> Pin 7:  Oven Supply (+24 VDC in)
> Pin 8:  Electronic Supply (+24 VDC in)
> Pin 9:  Case Ground
> 
> -RL
> ---------------- 
> Robert Lutwak, Senior Scientist 
> Symmetricom - Technology Realization Center 
> 34 Tozer Rd. 
> Beverly, MA 01915 
> 
> RLutwak at Symmetricom.com (Business) 
> Lutwak at Alum.MIT.edu (Personal) 
> 
> (978) 232-1461 (Desk) 
> (339) 927-7896 (Mobile) 
> (978) 927-4099 (FAX)
> 
> -------------- Original message -------------- 
> 
> 
>>Hello Robert, 
>>
>>Nice to see you on the list. 
>>
>>Un fortunately the referenced Web page does not show the 1000B DB-9 pin out 
>>which is what really started this thread. Can you help? 
>>
>>Best Regards, 
>>Hadley 
>>
>>
>>At 02:24 AM 7/20/2005, you wrote: 
>>
>>>The 1000B is still in production. Here's a link to the product folder: 
>>>
>>>http://www.symmttm.com/products_pfr_1000B.asp 
>>>
>>>It's no longer the standard oscillator in cesium products but can be found 
>>>in the MHM-2010 hydrogen maser and the 1050A rackmount OCXO instrument. 
>>>
>>>
>>>-RL 
>>>
>>>------------------------------------------------------------ 
>>>Robert Lutwak, Senior Scientist 
>>>Symmetricom - Technology Realization Center 
>>>34 Tozer Rd. 
>>>Beverly, MA 01915 
>>>(978) 232-1461 Voice RLutwak at Symmetricom.com (Business) 
>>>(978) 927-4099 FAX Lutwak at Alum.MIT.edu (Personal) 
>>>(339) 927-7896 Mobile 
>>>
>>>----- Original Message ----- From: "Brooke Clarke" 
>>>To: "Discussion of precise time and frequency measurement" 
>>>
>>>Sent: Tuesday, July 19, 2005 5:46 PM 
>>>Subject: [time-nuts] Datum 1000B 10 MHz Oscillator pinouts for the 
>>>DB-9connector? 
>>>
>>>
>>>
>>>>Hi: 
>>>>
>>>>I'm working on selling my FTS4060/S24 that was broken by the shipper and 
>>>>would like to know the pin outs for the Datum 1000B 10 MHz crystal 
>>>>oscillator, since it's working. It's frequency can be controlled by 
>>>>using the manual scan control voltage increase/decrease toggle switch. 
>>>>
>>>>Thanks, 
>>>>
>>>>Brooke Clarke, N6GCE 
>>>>-- 
>>>>w/Java http://www.PRC68.com 
>>>>w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml 
>>>>http://www.precisionclock.com 
>>>>
>>>>
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>>>
>>>
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