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[Sean]

CAT 5 is an Ethernet network cable. It is defined by the Electronic Industry Association and Telecommunications Industry Association. CAT5, the fifth generation of Ethernet technology, is commonly used by current local area networks. Because the beginning of coming forth of 100Base-TX networks, CAT5 replace the CAT4 quickly. Up to 2000, another specification CAT5e was created. And recently years, CAT6 and CAT7 are developing.
CAT5, which is made up of four pairs of copper wire can offer more than 100 Mbps of the Ethernet speed. But it only runs to within the length of 100m that is 328 feet. Since the CAT5 just take advantage of 2 of four pairs copper wires, another specification cable – CAT5 enhanced (also known as CAT5e) created. The CAT5e used all the four pair copper wires so it can support 1000 Mbps in a short distance.
There are two different types of CAT5. They are solid and stranded. Solid conductor uses 1 solid wire in one conductor, so that there are 8 solid wires in the 4 pair. On the other hand, each stranded conductor is plugged in multiple wires so in a 4 pair (8 conductors) 7 strand roll, 56 wires are included. And their functions are different too. A solid CAT5 cable usually use in longer length, which often support to the office buildings. As for the stranded CAT5 cable, it is flexible and fit for shorter- distance, not fixed cabling. They have their own advantages. Though the CAT6 and CAT7 are also in market, many people are willing to choose CAT5 for their wired local area networks. Since it is not only less expensive but also supports a high speed.