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| Column A |
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| Column B |
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| Column C |
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| Column D |
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| Power connector |
+ 12 + 5, grounds, and -12 power connectors on a "berg" type strip.
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| Overall view (Plus an After the Battle) |
Now need to figure out what backplane this is. From what I've seen on Ebay from the same seller, this may be a small LSI 11/03 system backplane, since a cpu card + memory card is now listed for sale. Hopefully can snag that and have a nice little system with what I've got.
This is a backplane for what appears to be an H9270 PDP 11/03 system.
See page 136 of this manual
http://manx.classiccmp.org/collections/antonio/dec/ek-lsi11-tm-003.pdf
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| Page 136, H9270 backplane and cage |
Backplane signal list from Appendix B page 1
Below with E.1, Basic Daisy chain is a single system layout.
below is the single backplane as well as a two backplane lashup.
Pin assignments
x
x
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