[GreenKeys] [External] Re: Any idea what these are called?

[Cory Heisterkamp]

Agreed on the transposed conductors, just wanted others to know that as is
usually the case with electronics, the whole tends to be cheaper than the
sum of the parts if you only need a couple. If you're crimping lots of
these guys, the tool can be had for the price of a cup of coffee. -C

On Mon, Jun 8, 2020 at 8:31 PM Jones, Douglas W <douglas-w-jones at uiowa.edu>
wrote:

> From: Cory Heisterkamp [coryheisterkamp at gmail.com] -- Monday, June 8,
> 2020 8:11 PM
>
> > Yes, 10-pin IDC. ... but couldn’t reliably crimp a 30-pin. I ended up
> buying assembled ribbons that included the connectors for only a few
> dollars (on eBay) and cutting them to length.
>
> In this case, from the photo, it's clear that the cable was made up
> specially, transposing some of the conductors.  Because of that, you can't
> use an off the shelf cable.
>
> However, I've had great luck making IDC connections for anything up to 60
> pins using a bench vise to press the cap down over the prongs that pierce
> the insulation.  The key is, the two jaws have to be stable and stay
> exactly parallel as they pinch together, and the forces involved are
> large.  The screw on a vise does this extremely well.  So, I've never had
> cause to get the special tool for crimping the things.
>
>             Doug Jones
>             jones at cs.uiowa.edu
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