Author Topic: Yet another component to be identified  (Read 1913 times)

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Offline giosif

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Yet another component to be identified
« on: January 07, 2017, 11:03:39 pm »
Ok, got a quick answer to my previous call for help on identifying a component.
So, I am hoping to up the game with this one.  :D
Anyone any guesses?

Thanks!
 

Offline Benta

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Re: Yet another component to be identified
« Reply #1 on: January 07, 2017, 11:18:06 pm »
Signal transformers, TX/RX pair. Which interface type is not clear.

 

Offline giosif

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Re: Yet another component to be identified
« Reply #2 on: January 08, 2017, 11:16:56 pm »
Signal transformers, TX/RX pair. Which interface type is not clear.

Ammm... Ok...
Thanks for that!
Have to admit, I am not any much more clear on what these are doing on the board I have (part of a Solartron 7060 multimeter).
 

Offline Benta

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Re: Yet another component to be identified
« Reply #3 on: January 08, 2017, 11:45:51 pm »
What's up here?
A question with incomplete data just for fun? Bye.
 :--
 

Offline eblc1388

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Re: Yet another component to be identified
« Reply #4 on: January 09, 2017, 01:48:05 am »
Have to admit, I am not any much more clear on what these are doing on the board I have (part of a Solartron 7060 multimeter).

As standard for nearly all bench DVM design, the grounded digital control circuitry is electrically isolated to the floating analogue circuitry. These two interfaces can exchange data/control signals optically via optocoupler or magnetically via signal transformer.
 
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Offline giosif

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Re: Yet another component to be identified
« Reply #5 on: January 15, 2017, 10:59:42 pm »
What's up here?
A question with incomplete data just for fun? Bye.
 :--

Sorry, my intention with my reply was meant to reflect how "much" knowledge and understanding on electronics I have.
i.e. I had never heard of signal transformers before.
 

Offline giosif

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Re: Yet another component to be identified
« Reply #6 on: January 15, 2017, 11:00:49 pm »
Have to admit, I am not any much more clear on what these are doing on the board I have (part of a Solartron 7060 multimeter).

As standard for nearly all bench DVM design, the grounded digital control circuitry is electrically isolated to the floating analogue circuitry. These two interfaces can exchange data/control signals optically via optocoupler or magnetically via signal transformer.

Thank you for the explanation!
I understand now.
 

Offline eblc1388

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Re: Yet another component to be identified
« Reply #7 on: January 16, 2017, 01:06:25 am »
Here is a typical drawing showing the two interfaces, communicating via signal transformer. It is taken from an age old Datron 1051 bench DVM schematic.

The analogue section uses +/-15V while the digital section uses 5V. They do not share a common ground. Therefore if one connects 500V to the DVM input during a measurement, then there could be 500V between the two sections.
 
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Offline giosif

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Re: Yet another component to be identified
« Reply #8 on: January 16, 2017, 10:46:10 pm »
Here is a typical drawing showing the two interfaces, communicating via signal transformer. It is taken from an age old Datron 1051 bench DVM schematic.

The analogue section uses +/-15V while the digital section uses 5V. They do not share a common ground. Therefore if one connects 500V to the DVM input during a measurement, then there could be 500V between the two sections.

Ok, it is clear now.
Thank you again!
 


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