Subject: Re: PDP disguised as VAX
To: Ari Suutari <port-vax@netbsd.org>
From: Dave McGuire <mcguire@neurotica.com>
List: port-vax
Date: 10/12/1999 10:50:24
On Tue, 12 Oct 1999, Ari Suutari wrote:
>Yesterday I was given a Vaxstation 3200 and RD54 & TK50 in external
>boxes. When I examined the machine internals at home, I found
>that it has Q-bus but there was no VAX cpu. The cards
>in Q-bus were M8981 (I assume that this is PDP cpu),
>M7555, M7513 (disk controller), M7546 (tk50 controller) and
>M8043 + 3 * M3107 (are these serial lines ?).
>
>While I was hoping that this machine would have been a vax,
>maybe a PDP would be nice machine also. The only problem
>is that I'm missing connectors from back of the machine so it
>is hard to know where to attach console. So, does anyone
>know the pinout of M8981 PDP cpu connectors ? Or at least
>source for further information.
Wow...I would say you *WIN* in a very big way. The M8981 is a pdp11/93, one
of the last two models of pdp11 made, discontinued just a couple of years ago.
If it's an -A it's got 2mb of onboard RAM, if it's a -B it's got 4.
A shameless begging offer will follow in private mail. :)
-Dave McGuire