On Sun, Mar 10, 2013 at 11:32:03AM -0700, Ian Finder wrote:
Alternatively, is the backplane something fancy
I'd be unable to roll my
own of?
Not literally impossible but quite a project since no one (that I know of)
still makes connectors that are an exact fit. EDAC makes shallower ones with
the correct finger spacing though, so you could use those as long as you
I have seen a (Unibs-cable-socket, but it's the same connecotr) that was
made using a longer (amybe even S100 bus) edge conencotr with bits of
plain fibregalss board epoxied in to locare th eDEC board correctly. I
wouldn't recomend it.
The other problem is thst you are deaing with relatively high-seed logic
signals. You do have to use twised-pair wire (twi=sed iw tha groudn wire)
for some of the signals.
Making a backplane is possible, I did it. Mine was for Unibus, and i did
have hte right DEC connctor blocks and frame, so it was 'just' a matter
of getting the wire-wrap right. Even so, look around for the right one first.
-tony