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100Base-T
Last modified: Tuesday, January 27, 2004 

A networking standard that supports data transfer rates up to 100 Mbps (100 megabits per second). 100BASE-T is based on the older Ethernet standard. Because it is 10 times faster than Ethernet, it is often referred to as Fast Ethernet. Officially, the 100BASE-T standard is IEEE 802.3u.

Like Ethernet, 100BASE-T is based on the CSMA/CD LAN access method. There are several different cabling schemes that can be used with 100BASE-T, including:

  • 100BASE-TX: two pairs of high-quality twisted-pair wires
  • 100BASE-T4: four pairs of normal-quality twisted-pair wires
  • 100BASE-FX: fiber optic cables
  • Also see the Ethernet Designations chart in the Quick Reference section of Webopedia.

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    For internet.com pages about 100Base-T . Also check out the following links!

    Related Links

    100Base-T and 100VG-AnyLAN technologies paper
    This paper, from Compaq, provides a brief summary of the 100Base-T and 100VG-AnyLAN technologies.

    ClickZ Stats
    Home page for ClickZ Stats, a reference desk site for Web marketers that provides statistics and Web marketing information.

    Ethernet/Fast Ethernet Technology Center
    Contains information on Ethernet/Fast Ethernet technology, including articles, columns, test results from industry studies and test summaries, book reviews, and useful links to other sites. This page is hosted by The Tolly Group.

    Fast Ethernet Consortium home page
    University of New Hampshire's Fast Ethernet Consortium home page. There are links to Consortium overviews, information and news, and membership, technical and educational information.

    Fast Ethernet technology - white paper
    Contains a 100Base-T technology overview, a sample integration scenario, a summary of connectivity rules, and a glosssary of terms.

    Fast Ethernet tutorial
    Contains a guide to using Fast Ethernet from Lantronix.

    Fast Ethernet Tutorials and Resources
    Good collection of links to Fast Ethernet information, including tutorials, papers, reference guides, and introductions. This page is hosted by the InterOperability Lab at the University of New Hampshire.

    Introduction to Fast Ethernet
    Describes the three different physical implementations of Fast Ethernet, as well as sections on their differences, layers, integration, migration, encoding, signal encoding, and troubleshooting. This paper is hosted by Optimized Engineering Corporation.

    Introduction to Fast Ethernet
    Briefly describes the implementations of Fast Ethernet, including 100BASE-TX, 100BASE-FX, and 100BASE-T4.

    Quick reference guide to Ethernet
    Provides links to documents describing Ethernet, components, media, the Auto-Negotiation system, multi-segment configuration guidelines, and information on the Ethernet Configuration Guidelines book.

    Yahoo!'s Fast Ethernet page
    Yahoo!'s directory of Fast Ethernet.

    related categories

    Ethernet

    related terms

    1000Base-T

    2-205 rule

    5-4-3 rule

    Ethernet


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