How is twisted pair cable constructed?

I. How is twisted pair cable constructed? Twisted-pair cables generally consist of two 22-26 gauge insulated copper wires twisted around each other. In practice, twisted-pair cables consist of multiple pairs of twisted-pair wires wrapped together in an insulated cable sleeve. Typical twisted-pair cables are made of four pairs of wires or more pairs of wires in a single cable sleeve. These are called twisted-pair cables. Within a twisted pair cable (also known as a twisted pair cable), the different pairs have different twist lengths, which are generally within the range of 3.81cm to 14cm, twisted in an anti-clockwise direction. The twisting length of neighboring pairs is more than 1.27cm. By twisting two insulated copper wires together at a certain density, the degree of signal interference can be reduced, and the electromagnetic waves radiated by each wire in transmission will be canceled out by those emitted by the other wire. Therefore, twisted-pair cable uses a pair of mutually insulated metal wires twisted each other to resist part of the external electromagnetic interference, but more importantly, to reduce the external interference of their own signals. Although twisted pair compared with other transmission media, in the transmission distance, channel width and data transmission speed are subject to certain limitations, but the price is relatively inexpensive, and its adverse limitations in the general Fast Ethernet has little impact, so at present, twisted pair is still the enterprise LAN transmission medium.

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