PDP-11/23 PLUS and FDF11 option

From: Dave McGuire <mcguire_at_neurotica.com>
Date: Sun Aug 5 17:04:03 2001

On August 5, Tony Duell wrote:
> > The FPF11 has jumpers along the bottom which determine which backplane
> > pins it uses for power and ground. These allow it to be plugged into
> > either a Qbus or a Unibus backplane, for use with a pdp11/23 or a
>
> Actually, +5V and ground are on the same pins on Unibus and Qbus slots.
> The jumpers on the FPF11 determine which pins on the bus will be shorted
> together, thus giving either a Unibus style grant continuity or a Qbus one.

  Ahh, I stand corrected. I need ECC in my brain. I thought those
were for power.

> I'd like to see you fit one in a Pro350, though :-) (you did say any
> F11-based system). But actually, if you could power it somehow, I think it
> would work with the Pro.

  I thought of exactly that when I typed it...and I'm considering
trying it! :-)

      -Dave

-- 
Dave McGuire
Laurel, MD
Received on Sun Aug 05 2001 - 17:04:03 BST

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