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From: john larkin <jl@glen--canyon.com>
Newsgroups: sci.electronics.design
Subject: Re: modifiable backplane with sockets?
Date: Wed, 28 May 2025 18:06:06 -0700
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On Wed, 28 May 2025 14:10:00 -0800, Christopher Howard
<christopher@librehacker.com> wrote:

>> Well, since you're using a patch panel anyway, why not just run the
>> power and ground on the backplane?
>
>Perhaps I misunderstand your question. But if I connect the patch panel
>signal wires directly to the component modules, like I did with my
>current (already built) analog computer, then the wires end up taking a
>lot of space around the component modules, and you can't simply
>remove/replace modules without wiring stuff back up to the card.
>
>The patch panel can be variously organized according to how you want
>various component I/Os grouped. I was wanting to be able, for example,
>to plug in a new patch panel without having to do anything to the cards,
>though maybe I would have to do some modification to the back plane
>wiring if the new patch panel expected more signals.

Design a motherboard with some female DIN connectors in a row and
ground/power bussing and the rest of the pins poking out. Buy a bunch
of cheap boards. The motherboard is the patch panel.

Pluging analog boards have a mating male DIN, which will lock in to
the motherboard nicely.

Some people make standard jumper wires with crimped terminations that
slide over wrap-post type pins without actually wrapping. Use those to
patch the backplane connections. They are reusable.