Unibus questions

From: Doc Shipley <doc_at_mdrconsult.com>
Date: Wed Sep 24 22:46:32 2003

John A. Dundas III wrote:
> At 2:06 PM -0700 9/24/03, Doc Shipley wrote:
>
>> And, does that mean that all the 4x4 slots in the system chassis are
>>Qbus, as in I can run an RQDX3?
>
> Ooh. I recently acquired a complete /84 system as well. I have the
> technical documentation, though haven't digested it entirely...
>
> Pretty sure the quad slots are NOT standard Qbus. I think there's enough
> there to supply power and some signals. Instead I believe it is PMI, so it
> accommodates PMI memory, UBA, load monitor, etc. I would not put any
> standard Qbus boards in there.

   Well, almost as soon as I posed the question, on my way oout the
door, I realized that an RQDXx effectively terminates the bus anyway, so
that particular answer would be "no".


        Doc
Received on Wed Sep 24 2003 - 22:46:32 BST

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