Why are Cat5 cables used for networking?
I am guessing that you mean “Cat5 Cabling” – and are asking about the reason for using that particular type of cable? A network cable carries digital signals (“on” and “off” voltages) between two pieces of equipment. Its main requirement is that it carries the signals without affecting them – i.e. causing errors in the transmitted data. In order to do this as well as possible a Cat5 cable uses several conductors (wires) arranged in pairs. The data being sent is encoded such that the signal on each of the wires is the same voltage, but opposite polarity. The two conductors are twisted together along the length of the cable so that, on average, they are as close to, and far away from, sources of possible interference (e.g. an adjacent mobile phone which is transmitting). Because of this positioning of the two conductors they will both tend to pick up the same interfering signal. At the receiving end of the cable the device will look at the pair and produce (electrically) the difference o
