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open source GPIB adapter

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dazz1:
Hi
OK I have made those changes.
I should add a cap to the second gpib connector but that would mess up my text layout. 
I don't intend fitting the C/R, unless I have to.

Kean:

--- Quote from: dazz1 on April 09, 2024, 11:17:35 am ---I don't intend fitting the C/R, unless I have to.

--- End quote ---

Nope, C/R not really needed.  Just leave shield connection intact through the cable and keep it separate from logic ground, and obviously use the logic ground for the LA/scope connection.
It doesn't hurt to have the 1M resistor between shield and ground as you have it, but that may also already exist in one of your other devices on the bus.

If you have extra PCBs/connectors than I'd be happy to contribute some $ towards one or two and the cost of postage to Sydney.
I have a bunch of GPIB/HPIB gear in the office lab and at my home, spread across several benches, and with some still needing repairs.

dazz1:

--- Quote from: Kean on April 09, 2024, 11:46:39 am ---If you have extra PCBs/connectors than I'd be happy to contribute some $ towards one or two and the cost of postage to Sydney.

--- End quote ---

I was planning on selling the spare ones on the local auction website.  I know  there are a few people watching my blog posts.  It will be easy enough to send one over the water. 

I am also looking at putting the pcb design into pcbway projects.  Mine would be the only project on pcbway that includes "gpib" so I am probably about 30 years late in designing a break out board.

I try and do pcbs in batches to reduce shipping costs. I may be a while before I am ready to get them made. 

dazz1:
Hi
OK I have settled on a final version of the gpib breakout board.

The most significant change is the addition of notches that are almost mounting holes.
I usually include mounting holes, but I think if anyone makes one of these, they are unlikely to make an enclosure.
If they want to 3D print an enclosure, they can include keys in the print to match the notches, or
they can use M3 screws.

I have refined the text on the silk screen to make it easier to use.  It should not be necessary to refer to standards or pinouts to use this board.

tautech:
Test is it ?
Unconnected NET pin 1 J3.  :P

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