IBM PC3270 (5271) keyboard connector?

From: Tony Duell <ard_at_p850ug1.demon.co.uk>
Date: Sat Jun 21 15:08:00 2003

> > > I just picked up an IBM PC3270 with the 122 key keyboard. The 122 key
>
> On Sat, 21 Jun 2003, Tony Duell wrote:
> > I can't rememebr if it's this machine, but one of the more 'exotic'
> > original PCs has a somewhat strange keyboard conenction.
> >
> > There's a card in one of the expansion slots which contains (at least) an
> > 8051 microcontroller. It has a couple of DE9 connectors on the bracket
> > with one hole (at least) blanked off in each one). There's a 3-ended
> > cable that connected to one of the DE9s, to the keyboard connector on the
> > motherboard, and to the cable from the special keyboard.
>
> ... and somebody else told me that that card is meant to go into the
> "special" slot of the XT (in place of the serial card place holder)

I can't see why it would _have_ to go in that slot (unless it's something
like the cable will only reach to the motherboard keyboard socket if it's
there :-)) but I can well believe it can assert pin B8 and therefore
would work in that slot....

I mentioned I had the cable. I have the card and keyboard as well. I will
have to dig them out _sometime in the distant future_ and investigate

-tony
Received on Sat Jun 21 2003 - 15:08:00 BST