VT78 - pinouts

From: Pete Turnbull <pete_at_dunnington.u-net.com>
Date: Sun Dec 31 05:36:03 2000

On Dec 30, 23:06, David Gesswein wrote:
> From: pete_at_dunnington.u-net.com (Pete Turnbull)
> >That wasn't what I meant. Berg label the connector pins starting from
the
> >opposite end of the connector from the rest of the world, so what I
meant
> >was that on actual connectors, the pins are:
> >
> ...
>
> Thanks, I have updated the document. I had less trouble building it in
the
> first place than figuring out what I built.

LOL! I often find that :-)

> The adapter has a normal
> 3M in it and I had though I got the pin 1 backward on it. Apparently
> when I built it I knew they were opposite but since forgot.

The first couple of times I came across Berg connectors (rather than, say,
3M, which I was used to on micros) I was *thoroughly* confused by what I
saw as the "wrong" way of doing it. A healthy dose of DEC machines with
3rd party parts fixed that. Now I use them less, I have to think about it
again, though.

I wonder how this confusion came about? Everyone else uses "stripe on the
right" (but not, IIRC, for D-connectors and some others) but I think Berg
predates 3M et al headers? If so, how come 3M and the rest chose to be
different?

-- 
Pete						Peter Turnbull
						Network Manager
						Dept. of Computer Science
						University of York
Received on Sun Dec 31 2000 - 05:36:03 GMT

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