Application:

Setting up a lighting system for users to switch on/off the light wheather they are at the bottom or the top of the stairs.

Program description:

1. I1 is the 1st switch.2. I2 is the 2nd switch.3. Simply AND gate operation.4. If the two switches both are in on/off condition light will be ON.5. If one switch is on one switch is off the light will be in of

condition.