If I have more than one sensor that provide a digital output (1 or 0 only), and I only have one pair of wire connected from all the sensors to a specific point (let’s assume the sensors is at point A, and I would like to transfer the data to point B using one pair only), what are the possible way to do that using one pair of wire *only*?

I also would like to mention that from point B I assume I can know which sensor is sending 1 and which sensor is sending 0