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  2. Category 6 cable - Wikipedia

    en.wikipedia.org/wiki/Category_6_cable

    Category 6 cable (Cat 6) is a standardized twisted pair cable for Ethernet and other network physical layers that is backward compatible with the Category 5/5e and Category 3 cable standards. Cat 6 must meet more stringent specifications for crosstalk and system noise than Cat 5 and Cat 5e. The cable standard specifies performance of up to 250 ...

  3. Twisted pair - Wikipedia

    en.wikipedia.org/wiki/Twisted_pair

    U/FTP, F/UTP and F/FTP are used in Cat 6A cables. Shielded Cat 5e, Cat 6/6A, and Cat 8/8.1 cables typically have F/UTP construction, while shielded Cat 7/7 A and Cat 8.2 cables use S/FTP construction. [9] Because the shielding is conductive, it may also serve as a path to ground.

  4. Coaxial cable - Wikipedia

    en.wikipedia.org/wiki/Coaxial_cable

    Coaxial cable, or coax (pronounced / ˈkoʊ.æks /), is a type of electrical cable consisting of an inner conductor surrounded by a concentric conducting shield, with the two separated by a dielectric (insulating material); many coaxial cables also have a protective outer sheath or jacket. The term coaxial refers to the inner conductor and the ...

  5. Ethernet over twisted pair - Wikipedia

    en.wikipedia.org/wiki/Ethernet_over_twisted_pair

    The earlier standards use 8P8C modular connectors, [b] and supported cable standards range from Category 3 to Category 8. These cables typically have four pairs of wires for each connection, although early Ethernet used only two of the pairs. Unlike the earlier -T standards, the -T1 interfaces were designed to operate over a single pair of ...

  6. Copper conductor - Wikipedia

    en.wikipedia.org/wiki/Copper_conductor

    Copper wires Copper cable Coaxial cable made from copper. Copper has been used in electrical wiring since the invention of the electromagnet and the telegraph in the 1820s. [1] [2] The invention of the telephone in 1876 created further demand for copper wire as an electrical conductor.

  7. Andrew Smith Hallidie - Wikipedia

    en.wikipedia.org/wiki/Andrew_Smith_Hallidie

    Andrew Smith Hallidie (March 16, 1836 – April 24, 1900) was an American entrepreneur who was the promoter of the Clay Street Hill Railroad in San Francisco. This was the world's first practical cable car system, and Hallidie is often therefore regarded as the inventor of the cable car and father of the present day San Francisco cable car system, although both claims are open to dispute.

  8. Cyrus W. Field - Wikipedia

    en.wikipedia.org/wiki/Cyrus_W._Field

    Frederick Vanderbilt Field (descendant) Signature. Cyrus West Field (November 30, 1819 – July 12, 1892) was an American businessman and financier who, along with other entrepreneurs, created the Atlantic Telegraph Company and laid the first telegraph cable across the Atlantic Ocean in 1858.

  9. Category 5 cable - Wikipedia

    en.wikipedia.org/wiki/Category_5_cable

    Category 5 cable (Cat 5) is a twisted pair cable for computer networks. Since 2001, the variant commonly in use is the Category 5e specification (Cat 5e). The cable standard provides performance of up to 100 MHz and is suitable for most varieties of Ethernet over twisted pair up to 2.5GBASE-T [1][2][3][4] but more commonly runs at 1000BASE-T ...

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