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Category 5 cable is used in structured cabling for computer networks such as Ethernet over twisted pair. The cable standard prescribes performance parameters for frequencies up to 100 MHz and is suitable for 10BASE-T , 100BASE-TX (Fast Ethernet), 1000BASE-T (Gigabit Ethernet), and 2.5GBASE-T .
Developers hope the standards will provide a lifespan for commercial cabling systems in excess of ten years. This effort has been largely successful, as evidenced by the definition of Category 5 cabling in 1991, [citation needed] a cabling standard that (mostly) satisfied cabling requirements for 1000BASE-T, released in 1999. Thus, the ...
A standard 8P8C (often called RJ45) connector used most commonly on category 5 cable, one of the types of cabling used in Ethernet networks Standard IEEE 802.3 (1983 onwards) Physical media Twisted pair, optical fiber, coaxial cable Network topology Point-to-point, star, bus Major variants
Structured cabling design and installation is governed by a set of standards that specify wiring data centers, offices, and apartment buildings for data or voice communications using various kinds of cable, most commonly Category 5e (Cat 5e), Category 6 (Cat 6), and fiber-optic cabling and modular connectors.
Since common Category 5 cable has four pairs, it is possible to use the spare pairs (pins 4–5, 7–8) in 10- and 100-Mbit/s configurations for other purposes. The spare pairs may be used for power over Ethernet (PoE), for two plain old telephone service (POTS) lines, or for a second 10BASE-T or 100BASE-TX connection.
Common for current LANs. Superseded by Cat 5e, but most Cat 5 cables meet Cat 5e standards. [18] Limited to 100 m between equipment. Cat 5e: UTP, [18] F/UTP, U/FTP [19] 100 MHz [18] 1000BASE-T, 2.5GBASE-T [18] Enhanced Cat 5. Common for current LANs. Same construction as Cat 5, but with better testing standards. [18] Limited to 100 m between ...