Is this IBM keyboard compatible with the IBM 3279?

[Mattis Lind]

Den ons 4 mars 2020 kl 02:05 skrev Matt Burke via cctalk <
cctalk at classiccmp.org>:

> On 03/03/2020 16:48, Mattis Lind via cctalk wrote:
> > The connector is the correct one. It has four jumpers that could be used
> > for setting one of the keyboard types using the KB ident lines.
> >
> > https://i.imgur.com/PhfvKaV.jpg
> >
> > https://i.imgur.com/VPT38cK.jpg
> >
> > https://i.imgur.com/nN1gtFu.jpg
> >
> > Which terminal was it used for originally?
> >
> > /Mattis
>
> It looks a lot like the keyboard for a 3178 except that has a DA15
> connector and there is a blue switch on the top to select between upper
> and mixed case.
>


Yes, it indeed looks a 3178 kb. But as you said that one had a 15 pin dsub.
This 25 dsub actually has the missing pins in the righty places compared to
the 3279 so I am leaning towards that it in fact is a 3279 compatible
keyboard. Will probably trace the lines and compare those with the 3279 KB
connector to see if at least ident pins and power pins is in the right
places.

Then I will just go ahead and try to connect it to the 3279 and see what
happens when executing the keyboard test (test 2) of the 3279.

/Mattis


>
> Matt
>