17 Mar
2016
17 Mar
'16
11:26 a.m.
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>:
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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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
