Multibus (was Re: OT: Dark Tower)

From: Ethan Dicks <erd_6502_at_yahoo.com>
Date: Tue Oct 16 11:19:58 2001

--- Iggy Drougge <optimus_at_canit.se> wrote:
> Ethan Dicks skrev:
>
> >NCR had a line of multibus-based 68K-family UNIX machines called "NCR
> >Towers"...
>
> ISTR reading that very early SUNs used Multibus, too. What kind of bus
> was that? What did it look like, and what other platforms used it?
> It seems to have been quite popular at some time.

Older Cisco routers (AGS+, etc.) also used Multibus. There were two
connectors, one at 0.154" pitch, the other at a smaller pitch (0.125"?)
The cards were approx 12" wide and 6" tall (might be a little larger).
I think the data path was limited to 16 bits, but I could be wrong on
that. It was common to see on Motorola processors before VME.

> It seems to have been quite popular at some time.

AFAIK, it was either free to use or cheap to license, and didn't
require proprietary connectors like DEC busses.

-ethan




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Received on Tue Oct 16 2001 - 11:19:58 BST

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