>The backplane is marked Micro-11 and H9278-A which is described as:
> Q22 BUS BACKPLANE, 8 QUAD SLOTS
>
>Which sounds a whole lot like Q/CD all the way down to me. Anyone know for
>sure? I'll be trying it out shortly so I may figure it out empirically. :-)
You want to look at Micronote #5, "Q22 Compatible Options", for the
straight scoop. If you want to look at it over the web, start at the
Micronote index at
http://metalab.unc.edu/pub/academic/computer-science/history/pdp-11/hardware/micronotes/numerical/
In there you'll see the H9278 classified as
Micro/PDP-11 H9278 4 X 3 Q22/CD and 4 X 5 Q22/Q22 Backplane
In other words, this is your bog-standard BA23 backplane. The first three
slots are CD, and the rest are serpentine.
--
Tim Shoppa Email: shoppa_at_trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927
Received on Fri Dec 17 1999 - 20:47:00 GMT