[GreenKeys] 28KSR question...

[Nick England]

Watch out for those pin numbers.
On all the single connector typing units I have come across, the Bell
contacts are on 2 (red) and 7 (black).
Selector magnets are on 1-4 and 0-3

If it were mine, I'd rewire the Bell switch to pins 2 & 7 on the same
connector (LEFT) as the Selector Magnets - that way, you wouldn't have
anything special about either your LESU/cabinet or the typing unit.

Cheers
Nick England K4NYW
www.navy-radio.com


On Tue, May 12, 2020 at 9:54 PM John, W9DDD <w9ddd at tapr.org> wrote:

> OK, the more one digs into this stuff the more you find that there are a
> lot of deviations from what appeared to be a standard.
>
> Just some quick looking at WDs, I see that if there is a second
> connector on the typing unit, they generally put the bell contacts on
> pins 3 and 4 of the right connector.  If you don't have a cable to
> connect to the right connector of the typing unit then you can safely
> bet that typing unit didn't go with that cabinet originally.
>
> So you'll probably have to move the wires on to the generally used pins
> on the left connector.  On typing units with only one connector the bell
> contacts were wired with a red and a black wire and the bell contacts
> were over slot 28.  With one like yours the bell was wired with yellow
> and brown and went to pins 1 and 3 on the right connector.  (Y on 1 and
> BR on 3)
>
> John, W9DDD
>
> On 5/12/2020 8:18 PM, E. wrote:
> >
> > Thanks all for all the replies ^^ !  I believe the bell contact board is
> > this little guy in the photo attached, right?  It appears that the wires
> > from it go to the empty connector on the right - in the second photo
> > (attached)… so it really goes no where.  If I’m looking at it correctly
> > - why is this???  Is there a way to rectify the situation ;p ?  Will
> > look at the wiring diagram after supper…..
> >
> >
> >
> >
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