PDP-11/05-NC with M9301?

[william degnan]

On Thu, Mar 17, 2016 at 1:59 PM, Mattis Lind <mattislind at gmail.com> wrote:

> 2016-03-17 18:50 GMT+01:00 Paul Birkel <pbirkel at gmail.com>:
>
> > 11/70:  M9301-YC -- E-F Slot #1.  It's specially wired like everything
> > else in Slot #1 through Slot #39.  SPC doesn't start until Slot #40.
> M9302
> > goes in Row A-B Slot #44.
> >
> > KW11 (clock) goes adjacent in Row D Slot #1.
> >
> > Row C Slot #1 is empty.
> >
> > Rows A-B Slot #1 take the FP & CP maintenance modules, if in use.
> >
> >
> >
> I just found a rather unfocused picture of the backplane of a 11/70. And my
> guess was completely wrong. As you wrote it is in slot 1 EF. And the M9302
> in the last slot as normal.
>
> /Mattis
>


I took a look at my 11/40, it has a 9312 in pos 1/2 in the middle of the
2nd/rear of two backplanes here:
http://vintagecomputer.net/digital/PDP11-40/NPG.JPG

With this arrangement I can boot into the console monitor installed on the
9312.
http://vintagecomputer.net/digital/PDP11-40/Console_test.JPG
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