Digital Signal 1

Digital Signal 1 (DS1) is like a really long cord that carries voices and sounds from one place to another, like when you talk on the phone. But instead of just carrying the sounds as they are, it turns them into tiny pieces called "bits" that can be sent and received really fast with help from a computer. Think of it like breaking up a puzzle into tiny pieces so you can send them in a big box instead of trying to move the whole puzzle at once.

DS1 is special because it can carry lots of different calls all at once using something called "multiplexing". This means that different voices or sounds can be sent at the same time, but they stay separate and don't mix together. It's like having lots of different boxes filled with puzzle pieces, but being able to put them all in one big container and still be able to sort them out later.

So when you call someone far away and hear their voice on the other end, that's thanks to DS1 carrying the sound pieces to you really fast, even though you're not together in the same room. Cool, huh?