Digital multiplex hierarchy

So you know how sometimes your mom or dad can watch their favorite show on one TV, while you watch your favorite show on another TV in a different room? Digital multiplex hierarchy is kind of like that, but instead of TVs, it's for getting lots of different pieces of information (like phone calls or internet data) to travel over the same wires or signals.

Think of it like a big highway where lots of cars want to go to different places. We don't want all the cars to crash into each other or get stuck in traffic, so we have different lanes and exits for different cars to use.

Digital multiplex hierarchy does something similar for information. It uses different "lanes" (called channels) to send different types of information like phone calls, videos, or text messages. This helps make sure that all the information gets to where it needs to go without getting mixed up or slowed down.

There are different levels of digital multiplex hierarchy, kind of like how there are different levels of highways. Each level can handle more information and has more channels to work with. It's kind of like how a regular highway can handle a lot of cars, but a superhighway can handle even more.

Overall, digital multiplex hierarchy is just a way to make sure lots of different pieces of information can go where they need to go without causing a big traffic jam in the wires or signals they use.