We use cookies to improve your online experience. By continuing browsing this website, we assume you agree our use of cookies.

How to learn what is twisted pair?

Views : 80
Author : CETUS INTL
Update time : 2023-11-23 14:29:07
A previous article mentioned what twisted pair Ethernet is. So what is twisted pair? Welcome to this article to learn what twisted pair cable is.

What is twisted pair?
Twisted Pair - one of the most commonly used transmission media in integrated cabling projects. TP consists of two copper wires wrapped in a protective insulating layer. These two insulated copper wires are twisted together at a particular frequency.

During transmission, the radio waves from each wire will cancel out the waves from the other wire. This cancellation helps to reduce signal interference.

Twisted pair wire is generally made of two 22-26 gauge insulated copper wires twisted around each other. This is where the name "twisted pair" comes from. Twisted pairs are multiple pairs of twisted wires wrapped in an insulated cable casing when used. 

If one or more pairs of twisted pairs are placed in an insulating sleeve, it becomes a twisted pair cable. However, in daily life, "twisted pair cable" is generally called "twisted pair" directly.

Relative to other transmission mediums. Twisted pair wires have specific constraints regarding transmission range, bandwidth, and data transfer rate. However, they are comparatively inexpensive.

How to learn what is twisted pair?

About the principle of twisted pair.
A pair of metal conductors, each insulated from the other, are twisted together to form a twisted pair. In this way, it can not only resist some electromagnetic wave interference from the outside world. It can also minimize the cross-talk between several pairs of intertwined wires.

Two wires wrap around each other, and the disruptive signal affects the intertwined pair of wires. The differential circuit removes the common mode signal to get the useful signal from the received signal.

Twisted pair equalizes external interference noise on two wires, allowing the differential circuit to extract useful signals.

Theoretically, in twisted pair and differential circuits. It is equivalent to completely eliminating the interference signal and doubling the useful signal. However, there are some variations in the real-world functioning.

Inside a cable sheath, various wire pairs possess distinct twist lengths. The distance of one complete twist of a twisted pair is referred to as pitch. The smaller the pitch, the stronger the anti-interference ability.

The above is an introduction to twisted pair cables.