A signal routing is the process of sending a signal from one location to another. It is often done using wires, but can also be done using other means such as optical fiber or wireless. The main goal of signal routing is to get the signal from its source to its destination with as little distortion as possible.
There are many different ways to route signals, and the choice of method depends on a number of factors including the type of signal, the distance it needs to travel, and the available infrastructure. For example, digital signals can be routed using either copper wires or optical fibers, but analog signals must be routed using copper wires.
The most common type of wire used for signal routing is called twisted pair cable. This consists of two insulated wires that are twisted around each other. The twisting helps to cancel out any electromagnetic interference that might otherwise distort the signal.
Twisted pair cables are typically used for shorter distances, such as within a building or between buildings in close proximity. For longer distances, optical fiber is generally used instead because it can carry signals much further without attenuation (signal loss).
Wireless methods can also be used for signal routing, but these tend to be more expensive and have more potential for interference than wired methods.