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  2. Category 5 cable - Wikipedia

    en.wikipedia.org/wiki/Category_5_cable

    Category 5 cable that is partially stripped and showing its four twisted pairs (eight wires). 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).

  3. Power over Ethernet - Wikipedia

    en.wikipedia.org/wiki/Power_over_Ethernet

    Derating of cable maximum ambient operating temperature None 5 °C (9.0 °F) with only two pairs active, at I max: 10 °C (18 °F) with all of the bundled cables pairs active, at I max [36] 10 °C (18 °F) with temperature planning required Supported cabling Category 3 and Category 5 [27] Category 5 [27] [note 2] Supported modes

  4. Ethernet over twisted pair - Wikipedia

    en.wikipedia.org/wiki/Ethernet_over_twisted_pair

    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.

  5. Gigabit Ethernet - Wikipedia

    en.wikipedia.org/wiki/Gigabit_Ethernet

    Cable (minimum required) Cable rating (MHz) Usage 1000BASE‑T: 802.3ab-1999 (CL40) current 1000 4 4 4 TCM 4D-PAM-5 125 62.5 100 Cat 5: 100 LAN 1000BASE-T1: 802.3bp-2016: current 1000 1 1 2.6 6: PAM-3 80B/81B RS-FEC 750 375 40 Cat 6A: 500 Automotive, IoT, M2M 1000BASE‑TX: TIA/EIA-854 (2001) obsolete 1000 4 2 4 PAM-5 250 125 100 Cat 6: 250 ...

  6. Twisted pair - Wikipedia

    en.wikipedia.org/wiki/Twisted_pair

    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 Superseded by Cat 5e, but most Cat 5 cables meet Cat 5e standards.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 ...

  7. ANSI/TIA-568 - Wikipedia

    en.wikipedia.org/wiki/ANSI/TIA-568

    The standard specifies how to connect eight-conductor 100-ohm balanced twisted-pair cabling, such as Category 5 cable, to 8P8C modular connectors (often referred to as RJ45 connectors). The standard defines two alternative pinouts: T568A and T568B. ANSI/TIA-568 recommends the T568A pinout for horizontal cables.

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