MMI@PSUVM.BITNET (06/29/89)
Hello Netters,
I have a small problem and I am looking for a solution.
I basically have 4 input lines:1,2,3,4 (with varying voltages).
I also have a switch that can be either on or off. If
the switch is on, say M is connected to R. If it is off
then M would be connected to S. I am expecting four
outputs: A,B,C,D. The results are tabulated in what follows.
Switch Switch
Input Output Off On
1 --- --- A 1 2
2 --- --- B 2 1
3 --- --- C 3 4
4 --- --- D 4 3
Switch
R--
M ----
S--
Any ideas on how to accomplish this? The major requirement, I guess,
would be to use only that switch.
*** Michel Maksoud.