>I guess that's because I don't know what a DIN 41419 is, and don't
>know what size a "Eurocard" is, nor why that would be a desirable size.

OK, I did state it in my first email on this topic, and I think you at
skimmed that, because I recall comment on fitting an FT232 for USB.

However a Eurocard is 100mm (4") wide, by 160mm (nominally 6") long, and
many rack mount systems are designed for a 3U rack to have these on edge
uncased. The Eurocard size is what many PCB houses are basing their cheap
development sampling costings on (e.g. Olimex).

The DIN connector is a 3 row 0.1" pitch normally 64 pin long, but 32 pin
long versions are also available. This is across one end of the PCB. Checked
the connector, and I put the wrong DIN number sorry, the correct one is
41612. The "Brick" type power supplies for modular rack systems typically
use a version of this connector that has spade type connectors for high
current and mains use. You can also get versions that take coax or circular
high current pins a bit like some D connectors do.

http://www.jrmiller.demon.co.uk/products/mod96.html has a picture of a
typical Eurocard, with the DIN connector pads on the right hand end (the
area marked PL on the silk screen). Note the holes within the silk screen
marking for the connector are for connector mounting screws,
. As these pads are on a 0.1" x 0.1" grid if someone wants to fit a pin
header to connect to ribbon cable IDC connectors, these same holes suit that
purpose. You can also get double and quad height ones. IIRC VME cards are
quad height Eurocards.

a Eurocard would also fit the sort of use you envisage - one off projects
that would be installed somewhere. Having a one off type CPU card that could
go in a development system consisting of a Eurocard cardcage would be real
useful.

>The board is basically built around the prototype area.  I'm currently
>thinking the board will be about 6" wide, which accomodates the 50
prototype
>columns with room for rubber feet or mounting holes.  Extra connector pads
>could fit in the extra width not used up by the mounting.

That would be reasonably commensurate with what I envisage the Eurocard size
having.

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