22 Aug
2011
22 Aug
'11
5:25 p.m.
On 23/08/2011 00:41, Fred Cisin wrote:
I've accumulated a shoebox full over the years,
but never had a reason to
want to use those over other approaches.
On the other hand, the "matrix switch" (10 10throw slide switches, with a
DB25 at each end) was more fun.
I have a neat little box which has no switches, but instead has a 10 x
10 plugboard, with the main signals from the DB25 connectors taken to
two adjacent sides "X" and "Y". Inserting a pin at the intersection
of
any X and Y links the signals there. The side opposite each DB25 has a
10-section DIL LED so you can what's happening on the corresponding
connector.
--
Pete Peter Turnbull
Network Manager
University of York