Switching Symbolics and Apple Macintosh keyboards

• To: RWK@FUJI.ILA.Dialnet.Symbolics.COM
• Subject: Switching Symbolics and Apple Macintosh keyboards
• From: felix@Warbucks.ai.sri.com (Felix Ingrand)
• Date: Mon, 7 May 90 09:28:13 PDT
• Cc: MMcM%titania.oberon.dialnet.symbolics.com@Riverside.SCRC.Symbolics.COM, SLUG%warbucks.ai.sri.com@Riverside.SCRC.Symbolics.COM
• In-Reply-To: <19900505032156.4.RWK@KILIMANJARO.ILA.Dialnet.Symbolics.COM>
• Organization: SRI International, Menlo Park, CA
• Phone: (415) 859 5584

Robert W. Kerns writes:
>    Date: Fri, 27 Apr 90 17:13 EDT
>    From: Mike McMahon <MMcM@titania.oberon.dialnet.symbolics.com>
>    The ADB connector on the back of the Macintosh is only rated for 500
>    switches.  I understand that replacing it, should it break, is a bit of
>    tricky soldering.
...
>    You still have to restart the Mac after switching (the mouse switches
>    successfully, so that's not as much of a timing feat as it sounds, given
>    the menu).  But that's still a lot easier than reaching around behind
>    all the noise insulation.
>
>Why bother?  The Mac is perfectly happy to have multiple keyboards
>and pointers.  On mine, I have two Apple keyboards, two trackballs,
>and 1 mouse for handicaped souls who can't handle trackballs.
>
>(This duplication is so I can move my monitor over by my music
>equipment without shutting down.)

I remember reading in the Symbolics "Symbolics Kbd & Mouse for the Mac"
installation procedure to "not plug the adb box AND the mac mouse and keyboard
at the same time". They say it draws too much power on the adb bus, and you
have a risk of blowing up the adb fuse (which is not easy to replace...)

Moreover, if you plug the adb box AND the mac kbd at the same time, the mac
gets confused because they do not have the same layout (so they do not use the
same resource for mapping key and char).

felix

• Switching Symbolics and Apple Macintosh keyboards
• From: RWK@FUJI.ILA.Dialnet.Symbolics.COM (Robert W. Kerns)

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