Some Lisa Questions

From: Jeffrey H. Ingber <jingber_at_ix.netcom.com>
Date: Tue Jun 18 16:43:38 2002

On Tue, 2002-06-18 at 13:38, Eric Smith wrote:
 
> Does the black connector housing have ridges on the top and bottom that
> prevent a normal DE-9 from mating with it? Or signs that such ridges have
> been filed off? If so, you have an early backplane. I wouldn't expect to
> see that in a 2/10 or XL.

Not that I'm aware of, but I'll take a closer look. This is definitely
a later backplane as it lacks an external parallel port. I'm familar
only from memory of the earlier mice having some sort of 'clip' that
held the mouse in place. FYI - I have a M0100 mouse which I understand
isn't the 'proper' mouse.

To better visualize the mechanics of this, imagine a VGA connector (on
the card side) whithout the metal sheath, just the bare plastic - that's
what I have on the motherboard. The mouse doesn't appear to have been
modified - it has what would appear to be (physically) identical to a
DB-9 serial port (female).

So, it appears that something was modified on the motherboard connector,
but without some reference I don't know what's missing.

  The early Lisa mice used a strange DE-9 variant
> that I can't easily describe. In order to use the later mice on it, you
> had to either file off the ridges on the Lisa connector, or cut notches
> in the metal shell of the mouse connector, and either way you ended up
> with nothing to retain the connector.
>
>
>
Jeffrey H. Ingber (jingber _at_ ix.netcom.com)
Received on Tue Jun 18 2002 - 16:43:38 BST

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