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class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#100BASE-T1"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>100BASE-T1</span> </div> </a> <ul id="toc-100BASE-T1-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-100BASE-T2" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#100BASE-T2"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.3</span> <span>100BASE-T2</span> </div> </a> <ul id="toc-100BASE-T2-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-100BASE-T4" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#100BASE-T4"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.4</span> <span>100BASE-T4</span> </div> </a> <ul id="toc-100BASE-T4-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-100BaseVG" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#100BaseVG"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.5</span> <span>100BaseVG</span> </div> </a> <ul id="toc-100BaseVG-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Fiber_optics" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Fiber_optics"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Fiber optics</span> </div> </a> <button aria-controls="toc-Fiber_optics-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Fiber optics subsection</span> </button> <ul id="toc-Fiber_optics-sublist" class="vector-toc-list"> <li id="toc-Fast_Ethernet_SFP_ports" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Fast_Ethernet_SFP_ports"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>Fast Ethernet SFP ports</span> </div> </a> <ul id="toc-Fast_Ethernet_SFP_ports-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Optical_interoperability" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Optical_interoperability"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.2</span> <span>Optical interoperability</span> </div> </a> <ul id="toc-Optical_interoperability-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-100BASE-FX" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#100BASE-FX"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.3</span> <span>100BASE-FX</span> </div> </a> <ul id="toc-100BASE-FX-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-100BASE-LFX" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#100BASE-LFX"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.4</span> <span>100BASE-LFX</span> </div> </a> <ul id="toc-100BASE-LFX-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-100BASE-SX" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#100BASE-SX"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.5</span> <span>100BASE-SX</span> </div> </a> <ul id="toc-100BASE-SX-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-100BASE-LX10" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#100BASE-LX10"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.6</span> <span>100BASE-LX10</span> </div> </a> <ul id="toc-100BASE-LX10-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-100BASE-BX10" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#100BASE-BX10"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.7</span> <span>100BASE-BX10</span> </div> </a> <ul id="toc-100BASE-BX10-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-100BASE-EX" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#100BASE-EX"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.8</span> <span>100BASE-EX</span> </div> </a> <ul id="toc-100BASE-EX-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-100BASE-ZX" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#100BASE-ZX"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.9</span> <span>100BASE-ZX</span> </div> </a> <ul id="toc-100BASE-ZX-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Notes" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Notes"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Notes</span> </div> </a> <ul id="toc-Notes-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header 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</div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Fast Ethernet</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 22 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-22" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">22 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A5%D9%8A%D8%AB%D8%B1%D9%86%D8%AA_%D8%B3%D8%B1%D9%8A%D8%B9%D8%A9" title="إيثرنت سريعة – Arabic" lang="ar" hreflang="ar" data-title="إيثرنت سريعة" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Fast_Ethernet" title="Fast Ethernet – Catalan" lang="ca" hreflang="ca" data-title="Fast Ethernet" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Fast_Ethernet" title="Fast Ethernet – Czech" lang="cs" hreflang="cs" data-title="Fast Ethernet" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de badge-Q70894304 mw-list-item" title=""><a href="https://de.wikipedia.org/wiki/Fast_Ethernet" title="Fast Ethernet – German" lang="de" hreflang="de" data-title="Fast Ethernet" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Kiire_Ethernet" title="Kiire Ethernet – Estonian" lang="et" hreflang="et" data-title="Kiire Ethernet" data-language-autonym="Eesti" data-language-local-name="Estonian" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Fast_Ethernet" title="Fast Ethernet – Spanish" lang="es" hreflang="es" data-title="Fast Ethernet" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Fast_Ethernet" title="Fast Ethernet – French" lang="fr" hreflang="fr" data-title="Fast Ethernet" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EA%B3%A0%EC%86%8D_%EC%9D%B4%EB%8D%94%EB%84%B7" title="고속 이더넷 – Korean" lang="ko" hreflang="ko" data-title="고속 이더넷" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Eternet_Cepat" title="Eternet Cepat – Indonesian" lang="id" hreflang="id" data-title="Eternet Cepat" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Fast_Ethernet" title="Fast Ethernet – Italian" lang="it" hreflang="it" data-title="Fast Ethernet" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Fast_Ethernet" title="Fast Ethernet – Lithuanian" lang="lt" hreflang="lt" data-title="Fast Ethernet" data-language-autonym="Lietuvių" data-language-local-name="Lithuanian" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Gyors_Ethernet" title="Gyors Ethernet – Hungarian" lang="hu" hreflang="hu" data-title="Gyors Ethernet" data-language-autonym="Magyar" data-language-local-name="Hungarian" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%91%D1%80%D0%B7_%D0%B5%D1%82%D0%B5%D1%80%D0%BD%D0%B5%D1%82" title="Брз етернет – Macedonian" lang="mk" hreflang="mk" data-title="Брз етернет" data-language-autonym="Македонски" data-language-local-name="Macedonian" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Fast_Ethernet" title="Fast Ethernet – Dutch" lang="nl" hreflang="nl" data-title="Fast Ethernet" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/100%E3%83%A1%E3%82%AC%E3%83%93%E3%83%83%E3%83%88%E3%83%BB%E3%82%A4%E3%83%BC%E3%82%B5%E3%83%8D%E3%83%83%E3%83%88" title="100メガビット・イーサネット – Japanese" lang="ja" hreflang="ja" data-title="100メガビット・イーサネット" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Fast_Ethernet" title="Fast Ethernet – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Fast Ethernet" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Fast_Ethernet" title="Fast Ethernet – Polish" lang="pl" hreflang="pl" data-title="Fast Ethernet" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Fast_Ethernet" title="Fast Ethernet – Portuguese" lang="pt" hreflang="pt" data-title="Fast Ethernet" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/Fast_Ethernet" title="Fast Ethernet – Russian" lang="ru" hreflang="ru" data-title="Fast Ethernet" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%91%D1%80%D0%B7%D0%B8_%D0%B5%D1%82%D0%B5%D1%80%D0%BD%D0%B5%D1%82" title="Брзи етернет – Serbian" lang="sr" hreflang="sr" data-title="Брзи етернет" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/Fast_Ethernet" title="Fast Ethernet – Ukrainian" lang="uk" hreflang="uk" data-title="Fast Ethernet" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/100_Base-T" 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</div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Ethernet standards that carry data at the nominal rate of 100 Mbit/s</div> <p class="mw-empty-elt"> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Intel_Pro-100_82558_PCI_NIC.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/89/Intel_Pro-100_82558_PCI_NIC.jpg/220px-Intel_Pro-100_82558_PCI_NIC.jpg" decoding="async" width="220" height="189" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/89/Intel_Pro-100_82558_PCI_NIC.jpg/330px-Intel_Pro-100_82558_PCI_NIC.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/89/Intel_Pro-100_82558_PCI_NIC.jpg/440px-Intel_Pro-100_82558_PCI_NIC.jpg 2x" data-file-width="1732" data-file-height="1488" /></a><figcaption><a href="/wiki/Intel" title="Intel">Intel</a> PRO/100 Fast Ethernet <a href="/wiki/Network_interface_controller" title="Network interface controller">NIC</a>, a PCI card</figcaption></figure> <p>In <a href="/wiki/Computer_network" title="Computer network">computer networking</a>, <b>Fast Ethernet</b> <a href="/wiki/Ethernet_physical_layer" title="Ethernet physical layer">physical layers</a> carry traffic at the nominal rate of 100 Mbit/s. The <a href="/wiki/Classic_Ethernet" title="Classic Ethernet">prior Ethernet</a> speed was 10 Mbit/s. Of the Fast Ethernet physical layers, <b>100BASE-TX</b> is by far the most common. </p><p>Fast Ethernet was introduced in 1995 as the <b>IEEE 802.3u</b> standard<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> and remained the fastest version of Ethernet for three years before the introduction of <a href="/wiki/Gigabit_Ethernet" title="Gigabit Ethernet">Gigabit Ethernet</a>.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> The acronym <i>GE/FE</i> is sometimes used for devices supporting both standards.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Nomenclature">Nomenclature</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=1" title="Edit section: Nomenclature"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <i>100</i> in the media type designation refers to the transmission speed of 100 Mbit/s, while the <i>BASE</i> refers to <a href="/wiki/Baseband" title="Baseband">baseband</a> signaling. The letter following the dash (<i>T</i> or <i>F</i>) refers to the physical medium that carries the signal (twisted pair or fiber, respectively), while the last character (<i>X</i>, <i>4</i>, etc.) refers to the <a href="/wiki/Line_code" title="Line code">line code</a> method used. Fast Ethernet is sometimes referred to as <b>100BASE-X</b>, where <i>X</i> is a placeholder for the FX and TX variants.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="General_design">General design</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=2" title="Edit section: General design"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Fast Ethernet is an extension of the 10-megabit <a href="/wiki/Ethernet" title="Ethernet">Ethernet</a> standard. It runs on <a href="/wiki/Twisted_pair" title="Twisted pair">twisted pair</a> or <a href="/wiki/Optical_fiber_cable" class="mw-redirect" title="Optical fiber cable">optical fiber cable</a> in a <a href="/wiki/Star_topology" class="mw-redirect" title="Star topology">star wired bus topology</a>, similar to the IEEE standard 802.3i called <a href="/wiki/10BASE-T" class="mw-redirect" title="10BASE-T">10BASE-T</a>, itself an evolution of 10BASE5 (802.3) and 10BASE2 (802.3a). Fast Ethernet devices are generally backward compatible with existing 10BASE-T systems, enabling plug-and-play upgrades from 10BASE-T. Most switches and other networking devices with ports capable of Fast Ethernet can perform <a href="/wiki/Autonegotiation" title="Autonegotiation">autonegotiation</a>, sensing a piece of 10BASE-T equipment and setting the port to 10BASE-T half duplex if the 10BASE-T equipment cannot perform autonegotiation itself. The standard specifies the use of <a href="/wiki/CSMA/CD" class="mw-redirect" title="CSMA/CD">CSMA/CD</a> for media access control. A <a href="/wiki/Full-duplex" class="mw-redirect" title="Full-duplex">full-duplex</a> mode is also specified and in practice, all modern networks use <a href="/wiki/Ethernet_switch" class="mw-redirect" title="Ethernet switch">Ethernet switches</a> and operate in full-duplex mode, even as legacy devices that use half duplex still exist. </p><p>A Fast Ethernet adapter can be logically divided into a <a href="/wiki/Media_access_control" class="mw-redirect" title="Media access control">media access controller</a> (MAC), which deals with the higher-level issues of medium availability, and a physical layer interface (<a href="/wiki/PHY" class="mw-redirect" title="PHY">PHY</a>). The MAC is typically linked to the PHY by a four-bit 25 MHz synchronous parallel interface known as a <a href="/wiki/Media-independent_interface" title="Media-independent interface">media-independent interface</a> (MII), or by a two-bit 50 MHz variant called <a href="/wiki/Reduced_media_independent_interface" class="mw-redirect" title="Reduced media independent interface">reduced media independent interface</a> (RMII). In rare cases, the MII may be an external connection but is usually a connection between ICs in a network adapter or even two sections within a single IC. The specs are written based on the assumption that the interface between MAC and PHY will be an MII but they do not require it. Fast Ethernet or <a href="/wiki/Ethernet_hub" title="Ethernet hub">Ethernet hubs</a> may use the MII to connect to multiple PHYs for their different interfaces. </p><p>The MII fixes the theoretical maximum data bit rate for all versions of Fast Ethernet to 100 Mbit/s. The <a href="/wiki/Information_rate" class="mw-redirect" title="Information rate">information rate</a> actually observed on real networks is less than the theoretical maximum, due to the necessary header and trailer (addressing and error-detection bits) on every <a href="/wiki/Ethernet_frame" title="Ethernet frame">Ethernet frame</a>, and the required <a href="/wiki/Interpacket_gap" title="Interpacket gap">interpacket gap</a> between transmissions. </p> <div class="mw-heading mw-heading2"><h2 id="Copper">Copper</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=3" title="Edit section: Copper"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><b>100BASE-T</b> is any of several Fast Ethernet standards for <a href="/wiki/Twisted_pair_cable" class="mw-redirect" title="Twisted pair cable">twisted pair cables</a>,<sup class="noprint Inline-Template" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Accuracy_dispute#Disputed_statement" title="Wikipedia:Accuracy dispute"><span title="The material near this tag is possibly inaccurate or nonfactual. (October 2021)">dubious</span></a> – <a href="/wiki/Talk:Fast_Ethernet#Semantics_of_100BASE-T" title="Talk:Fast Ethernet">discuss</a></i>]</sup> including: 100BASE-TX (100 Mbit/s over two-pair <a href="/wiki/Category_5_cable" title="Category 5 cable">Cat5</a> or better cable), 100BASE-T4 (100 Mbit/s over four-pair <a href="/wiki/Category_3_cable" title="Category 3 cable">Cat3</a> or better cable, defunct), 100BASE-T2 (100 Mbit/s over two-pair Cat3 or better cable, also defunct). The segment length for a 100BASE-T cable is limited to 100 metres (328 ft) (the same limit as <a href="/wiki/10BASE-T" class="mw-redirect" title="10BASE-T">10BASE-T</a> and <a href="/wiki/Gigabit_Ethernet" title="Gigabit Ethernet">gigabit Ethernet</a>). All are or were standards under <a href="/wiki/IEEE_802.3" title="IEEE 802.3">IEEE 802.3</a> (approved 1995). Almost all 100BASE-T installations are 100BASE-TX. </p> <table class="wikitable" style="line-height:110%;"> <caption>Comparison of <a href="/wiki/Ethernet_over_twisted_pair" title="Ethernet over twisted pair">twisted-pair-based Ethernet</a> physical transport layers (TP-PHYs)<sup id="cite_ref-TDG_ETH_2nd_5-0" class="reference"><a href="#cite_note-TDG_ETH_2nd-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </caption> <tbody><tr> <th>Name </th> <th>Standard </th> <th>Status </th> <th>Speed (Mbit/s) </th> <th>Pairs required </th> <th>Lanes per direction </th> <th>Bits per hertz </th> <th><a href="/wiki/Line_code" title="Line code">Line code</a> </th> <th><a href="/wiki/Symbol_rate" title="Symbol rate">Symbol rate</a> per lane (MBd) </th> <th>Bandwidth (MHz) </th> <th>Max distance (m) </th> <th>Cable </th> <th>Cable rating (MHz) </th> <th>Usage </th></tr> <tr> <td><span class="nowrap"><a href="/wiki/100BASE-TX" class="mw-redirect" title="100BASE-TX">100BASE-TX</a></span> </td> <td><span class="nowrap">802.3u-1995</span> </td> <td style="background: #9EFF9E; color:black; vertical-align: middle; text-align: center;" class="active table-active">current </td> <td align="right">100 </td> <td align="right">2 </td> <td align="right">1 </td> <td align="right">3.2 </td> <td align="right"><a href="/wiki/4B5B" title="4B5B">4B5B</a> <a href="/wiki/MLT-3" class="mw-redirect" title="MLT-3">MLT-3</a> <a href="/wiki/NRZI" class="mw-redirect" title="NRZI">NRZI</a> </td> <td align="right">125 </td> <td align="right">31.25 </td> <td align="right">100 </td> <td align="center"><a href="/wiki/Category_5_cable" title="Category 5 cable">Cat 5</a> </td> <td align="right">100 </td> <td align="center">LAN </td></tr> <tr> <td><span class="nowrap"><a href="/wiki/100BASE-T1" class="mw-redirect" title="100BASE-T1">100BASE-T1</a></span> </td> <td><span class="nowrap">802.3bw-2015</span> (CL96) </td> <td style="background: #9EFF9E; color:black; vertical-align: middle; text-align: center;" class="active table-active">current </td> <td align="right">100 </td> <td align="right">1 </td> <td align="right">1 </td> <td align="right">2.6<span style="text-decoration:overline;">6</span> </td> <td align="right">PAM-3 4B/3B </td> <td align="right">75 </td> <td align="right">37.5 </td> <td align="right">15 </td> <td align="center"><a href="/wiki/Category_5e_cable" class="mw-redirect" title="Category 5e cable">Cat 5e</a> </td> <td align="right">66 </td> <td align="center">Automotive, IoT, M2M </td></tr> <tr> <td><span class="nowrap"><a href="/wiki/100BASE-T2" class="mw-redirect" title="100BASE-T2">100BASE-T2</a></span> </td> <td><span class="nowrap">802.3y-1997</span> </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">obsolete </td> <td align="right">100 </td> <td align="right">2 </td> <td align="right">2 </td> <td align="right">4 </td> <td align="right">LFSR PAM-5 </td> <td align="right">25 </td> <td align="right">12.5 </td> <td align="right">100 </td> <td align="center"><a href="/wiki/Category_3_cable" title="Category 3 cable">Cat 3</a> </td> <td align="right">16 </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na"><i>Market failure</i> </td></tr> <tr> <td><span class="nowrap"><a href="/wiki/100BASE-T4" class="mw-redirect" title="100BASE-T4">100BASE-T4</a></span> </td> <td><span class="nowrap">802.3u-1995</span> </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">obsolete </td> <td align="right">100 </td> <td align="right">4 </td> <td align="right">3 </td> <td align="right">2.6<span style="text-decoration:overline;">6</span> </td> <td align="right">8B6T PAM-3 <i>Half-duplex only</i> </td> <td align="right">25 </td> <td align="right">12.5 </td> <td align="right">100 </td> <td align="center"><a href="/wiki/Category_3_cable" title="Category 3 cable">Cat 3</a> </td> <td align="right">16 </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na"><i>Market failure</i> </td></tr> <tr> <td><span class="nowrap"><a href="/wiki/100BaseVG" title="100BaseVG">100BaseVG</a></span> </td> <td><span class="nowrap">802.12-1995</span> </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">obsolete </td> <td align="right">100 </td> <td align="right">4 </td> <td align="right">4 </td> <td align="right">1.6<span style="text-decoration:overline;">6</span> </td> <td align="right">5B6B <i>Half-duplex only</i> </td> <td align="right">30 </td> <td align="right">15 </td> <td align="right">100 </td> <td align="center"><a href="/wiki/Category_3_cable" title="Category 3 cable">Cat 3</a> </td> <td align="right">16 </td> <td data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na"><i>Market failure</i> </td></tr></tbody></table> <table class="wikitable" style="float: right; margin: 0 1em 1em 0; text-align:center;"> <caption><a href="/wiki/8P8C" class="mw-redirect" title="8P8C">8P8C</a> wiring (<a href="/wiki/ANSI/TIA-568" title="ANSI/TIA-568">ANSI/TIA-568</a> T568A) </caption> <tbody><tr> <th>Pin</th> <th>Pair</th> <th>Wire</th> <th>Color </th></tr> <tr style="background:#6f6;"> <td>1</td> <td>3</td> <td>+/tip </td> <td style="background:white; text-align:left;"><span typeof="mw:File"><a href="/wiki/File:Wire_white_green_stripe.svg" class="mw-file-description" title="Pair 3 Wire 1"><img alt="Pair 3 Wire 1" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c4/Wire_white_green_stripe.svg/60px-Wire_white_green_stripe.svg.png" decoding="async" width="60" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c4/Wire_white_green_stripe.svg/90px-Wire_white_green_stripe.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c4/Wire_white_green_stripe.svg/120px-Wire_white_green_stripe.svg.png 2x" data-file-width="1000" data-file-height="300" /></a></span> white/green </td></tr> <tr style="background:#6f6;"> <td>2</td> <td>3</td> <td>−/ring </td> <td style="background:white; text-align:left;"><span typeof="mw:File"><a href="/wiki/File:Wire_green.svg" class="mw-file-description" title="Pair 3 Wire 2"><img alt="Pair 3 Wire 2" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Wire_green.svg/60px-Wire_green.svg.png" decoding="async" width="60" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Wire_green.svg/90px-Wire_green.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Wire_green.svg/120px-Wire_green.svg.png 2x" data-file-width="1000" data-file-height="300" /></a></span> green </td></tr> <tr style="background:#fc3;"> <td>3</td> <td>2</td> <td>+/tip </td> <td style="background:white; text-align:left;"><span typeof="mw:File"><a href="/wiki/File:Wire_white_orange_stripe.svg" class="mw-file-description" title="Pair 2 Wire 1"><img alt="Pair 2 Wire 1" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Wire_white_orange_stripe.svg/60px-Wire_white_orange_stripe.svg.png" decoding="async" width="60" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Wire_white_orange_stripe.svg/90px-Wire_white_orange_stripe.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Wire_white_orange_stripe.svg/120px-Wire_white_orange_stripe.svg.png 2x" data-file-width="1000" data-file-height="300" /></a></span> white/orange </td></tr> <tr style="background:#69f;"> <td>4</td> <td>1</td> <td>+/ring </td> <td style="background:white; text-align:left;"><span typeof="mw:File"><a href="/wiki/File:Wire_blue.svg" class="mw-file-description" title="Pair 1 Wire 2"><img alt="Pair 1 Wire 2" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/de/Wire_blue.svg/60px-Wire_blue.svg.png" decoding="async" width="60" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/de/Wire_blue.svg/90px-Wire_blue.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/de/Wire_blue.svg/120px-Wire_blue.svg.png 2x" data-file-width="1000" data-file-height="300" /></a></span> blue </td></tr> <tr style="background:#69f;"> <td>5</td> <td>1</td> <td>-/tip </td> <td style="background:white; text-align:left;"><span typeof="mw:File"><a href="/wiki/File:Wire_white_blue_stripe.svg" class="mw-file-description" title="Pair 1 Wire 1"><img alt="Pair 1 Wire 1" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/29/Wire_white_blue_stripe.svg/60px-Wire_white_blue_stripe.svg.png" decoding="async" width="60" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/29/Wire_white_blue_stripe.svg/90px-Wire_white_blue_stripe.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/29/Wire_white_blue_stripe.svg/120px-Wire_white_blue_stripe.svg.png 2x" data-file-width="1000" data-file-height="300" /></a></span> white/blue </td></tr> <tr style="background:#fc3;"> <td>6</td> <td>2</td> <td>−/ring </td> <td style="background:white; text-align:left;"><span typeof="mw:File"><a href="/wiki/File:Wire_orange.svg" class="mw-file-description" title="Pair 2 Wire 2"><img alt="Pair 2 Wire 2" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Wire_orange.svg/60px-Wire_orange.svg.png" decoding="async" width="60" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Wire_orange.svg/90px-Wire_orange.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Wire_orange.svg/120px-Wire_orange.svg.png 2x" data-file-width="1000" data-file-height="300" /></a></span> orange </td></tr> <tr style="background:#963;"> <td>7</td> <td>4</td> <td>+/tip </td> <td style="background:white; text-align:left;"><span typeof="mw:File"><a href="/wiki/File:Wire_white_brown_stripe.svg" class="mw-file-description" title="Pair 4 Wire 1"><img alt="Pair 4 Wire 1" src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Wire_white_brown_stripe.svg/60px-Wire_white_brown_stripe.svg.png" decoding="async" width="60" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Wire_white_brown_stripe.svg/90px-Wire_white_brown_stripe.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Wire_white_brown_stripe.svg/120px-Wire_white_brown_stripe.svg.png 2x" data-file-width="1000" data-file-height="300" /></a></span> white/brown </td></tr> <tr style="background:#963;"> <td>8</td> <td>4</td> <td>−/ring </td> <td style="background:white; text-align:left;"><span typeof="mw:File"><a href="/wiki/File:Wire_brown.svg" class="mw-file-description" title="Pair 4 Wire 2"><img alt="Pair 4 Wire 2" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d0/Wire_brown.svg/60px-Wire_brown.svg.png" decoding="async" width="60" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d0/Wire_brown.svg/90px-Wire_brown.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d0/Wire_brown.svg/120px-Wire_brown.svg.png 2x" data-file-width="1000" data-file-height="300" /></a></span> brown </td></tr></tbody></table> <p><br /> </p> <table class="wikitable" style="float: right; margin: 0 1em 1em 0; text-align:center;"> <caption><a href="/wiki/8P8C" class="mw-redirect" title="8P8C">8P8C</a> wiring (<a href="/wiki/ANSI/TIA-568" title="ANSI/TIA-568">ANSI/TIA-568</a> T568B) </caption> <tbody><tr> <th>Pin</th> <th>Pair</th> <th>Wire</th> <th>Color </th></tr> <tr style="background:#fc3;"> <td>1</td> <td>2</td> <td>+/tip </td> <td style="background:white; text-align:left;"><span typeof="mw:File"><a href="/wiki/File:Wire_white_orange_stripe.svg" class="mw-file-description" title="Pair 2 Wire 1"><img alt="Pair 2 Wire 1" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Wire_white_orange_stripe.svg/60px-Wire_white_orange_stripe.svg.png" decoding="async" width="60" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Wire_white_orange_stripe.svg/90px-Wire_white_orange_stripe.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Wire_white_orange_stripe.svg/120px-Wire_white_orange_stripe.svg.png 2x" data-file-width="1000" data-file-height="300" /></a></span> white/orange </td></tr> <tr style="background:#fc3;"> <td>2</td> <td>2</td> <td>−/ring </td> <td style="background:white; text-align:left;"><span typeof="mw:File"><a href="/wiki/File:Wire_orange.svg" class="mw-file-description" title="Pair 2 Wire 2"><img alt="Pair 2 Wire 2" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Wire_orange.svg/60px-Wire_orange.svg.png" decoding="async" width="60" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Wire_orange.svg/90px-Wire_orange.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Wire_orange.svg/120px-Wire_orange.svg.png 2x" data-file-width="1000" data-file-height="300" /></a></span> orange </td></tr> <tr style="background:#6f6;"> <td>3</td> <td>3</td> <td>+/tip </td> <td style="background:white; text-align:left;"><span typeof="mw:File"><a href="/wiki/File:Wire_white_green_stripe.svg" class="mw-file-description" title="Pair 3 Wire 1"><img alt="Pair 3 Wire 1" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c4/Wire_white_green_stripe.svg/60px-Wire_white_green_stripe.svg.png" decoding="async" width="60" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c4/Wire_white_green_stripe.svg/90px-Wire_white_green_stripe.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c4/Wire_white_green_stripe.svg/120px-Wire_white_green_stripe.svg.png 2x" data-file-width="1000" data-file-height="300" /></a></span> white/green </td></tr> <tr style="background:#69f;"> <td>4</td> <td>1</td> <td>+/ring </td> <td style="background:white; text-align:left;"><span typeof="mw:File"><a href="/wiki/File:Wire_blue.svg" class="mw-file-description" title="Pair 1 Wire 2"><img alt="Pair 1 Wire 2" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/de/Wire_blue.svg/60px-Wire_blue.svg.png" decoding="async" width="60" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/de/Wire_blue.svg/90px-Wire_blue.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/de/Wire_blue.svg/120px-Wire_blue.svg.png 2x" data-file-width="1000" data-file-height="300" /></a></span> blue </td></tr> <tr style="background:#69f;"> <td>5</td> <td>1</td> <td>-/tip </td> <td style="background:white; text-align:left;"><span typeof="mw:File"><a href="/wiki/File:Wire_white_blue_stripe.svg" class="mw-file-description" title="Pair 1 Wire 1"><img alt="Pair 1 Wire 1" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/29/Wire_white_blue_stripe.svg/60px-Wire_white_blue_stripe.svg.png" decoding="async" width="60" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/29/Wire_white_blue_stripe.svg/90px-Wire_white_blue_stripe.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/29/Wire_white_blue_stripe.svg/120px-Wire_white_blue_stripe.svg.png 2x" data-file-width="1000" data-file-height="300" /></a></span> white/blue </td></tr> <tr style="background:#6f6;"> <td>6</td> <td>3</td> <td>−/ring </td> <td style="background:white; text-align:left;"><span typeof="mw:File"><a href="/wiki/File:Wire_green.svg" class="mw-file-description" title="Pair 3 Wire 2"><img alt="Pair 3 Wire 2" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Wire_green.svg/60px-Wire_green.svg.png" decoding="async" width="60" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Wire_green.svg/90px-Wire_green.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Wire_green.svg/120px-Wire_green.svg.png 2x" data-file-width="1000" data-file-height="300" /></a></span> green </td></tr> <tr style="background:#963;"> <td>7</td> <td>4</td> <td>+/tip </td> <td style="background:white; text-align:left;"><span typeof="mw:File"><a href="/wiki/File:Wire_white_brown_stripe.svg" class="mw-file-description" title="Pair 4 Wire 1"><img alt="Pair 4 Wire 1" src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Wire_white_brown_stripe.svg/60px-Wire_white_brown_stripe.svg.png" decoding="async" width="60" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Wire_white_brown_stripe.svg/90px-Wire_white_brown_stripe.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Wire_white_brown_stripe.svg/120px-Wire_white_brown_stripe.svg.png 2x" data-file-width="1000" data-file-height="300" /></a></span> white/brown </td></tr> <tr style="background:#963;"> <td>8</td> <td>4</td> <td>−/ring </td> <td style="background:white; text-align:left;"><span typeof="mw:File"><a href="/wiki/File:Wire_brown.svg" class="mw-file-description" title="Pair 4 Wire 2"><img alt="Pair 4 Wire 2" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d0/Wire_brown.svg/60px-Wire_brown.svg.png" decoding="async" width="60" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d0/Wire_brown.svg/90px-Wire_brown.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d0/Wire_brown.svg/120px-Wire_brown.svg.png 2x" data-file-width="1000" data-file-height="300" /></a></span> brown </td></tr></tbody></table> <div class="mw-heading mw-heading3"><h3 id="100BASE-TX">100BASE-TX</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=4" title="Edit section: 100BASE-TX"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:3Com_3C905B.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f2/3Com_3C905B.jpg/300px-3Com_3C905B.jpg" decoding="async" width="300" height="281" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f2/3Com_3C905B.jpg/450px-3Com_3C905B.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f2/3Com_3C905B.jpg/600px-3Com_3C905B.jpg 2x" data-file-width="2406" data-file-height="2256" /></a><figcaption>3Com 3C905B-TX 100BASE-TX <a href="/wiki/Peripheral_Component_Interconnect" title="Peripheral Component Interconnect">PCI</a> network interface card</figcaption></figure> <p><b>100BASE-TX</b> is the predominant form of Fast Ethernet, and runs over two pairs of wire inside a <a href="/wiki/Category_5_cable" title="Category 5 cable">Category 5</a> or above cable. Cable distance between nodes can be up to 100 metres (328 ft). One pair is used for each direction, providing <a href="/wiki/Full-duplex" class="mw-redirect" title="Full-duplex">full-duplex</a> operation at 100 Mbit/s in each direction. </p><p>Like <a href="/wiki/10BASE-T" class="mw-redirect" title="10BASE-T">10BASE-T</a>, the active pairs in a standard connection are terminated on pins 1, 2, 3 and 6. Since a typical Category 5 cable contains four pairs and the performance requirements of 100BASE-TX do not exceed the capabilities of even the worst-performing pair, one typical cable can carry two 100BASE-TX links with a simple wiring adaptor on each end.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> Cabling is conventionally wired to one of <a href="/wiki/ANSI/TIA-568" title="ANSI/TIA-568">ANSI/TIA-568</a>'s termination standards, T568A or T568B. 100BASE-TX uses pairs 2 and 3 (orange and green). </p><p>The configuration of 100BASE-TX networks is very similar to 10BASE-T. When used to build a <a href="/wiki/Local_area_network" title="Local area network">local area network</a>, the devices on the network (computers, printers etc.) are typically connected to a <a href="/wiki/Ethernet_hub" title="Ethernet hub">hub</a> or <a href="/wiki/Network_switch" title="Network switch">switch</a>, creating a <a href="/wiki/Star_network" title="Star network">star network</a>. Alternatively, it is possible to connect two devices directly using a <a href="/wiki/Ethernet_crossover_cable" title="Ethernet crossover cable">crossover cable</a>. With today's equipment, crossover cables are generally not needed as most equipment supports auto-negotiation along with <a href="/wiki/Auto_MDI-X" class="mw-redirect" title="Auto MDI-X">auto MDI-X</a> to select and match speed, duplex and pairing. </p><p>With 100BASE-TX hardware, the raw bits, presented 4 bits wide clocked at 25 MHz at the MII, go through <a href="/wiki/4B5B" title="4B5B">4B5B</a> binary encoding to generate a series of 0 and 1 symbols clocked at a 125 MHz <a href="/wiki/Symbol_rate" title="Symbol rate">symbol rate</a>. The 4B5B encoding provides DC equalization and spectrum shaping. Just as in the 100BASE-FX case, the bits are then transferred to the physical medium attachment layer using <a href="/wiki/NRZI" class="mw-redirect" title="NRZI">NRZI</a> encoding. However, 100BASE-TX introduces an additional, medium-dependent sublayer, which employs <a href="/wiki/MLT-3" class="mw-redirect" title="MLT-3">MLT-3</a> as a final encoding of the data stream before transmission, resulting in a maximum <a href="/wiki/Fundamental_frequency" title="Fundamental frequency">fundamental frequency</a> of 31.25 MHz. The procedure is borrowed from the ANSI X3.263 <a href="/wiki/FDDI" class="mw-redirect" title="FDDI">FDDI</a> specifications, with minor changes.<sup id="cite_ref-mlt3_7-0" class="reference"><a href="#cite_note-mlt3-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="100BASE-T1">100BASE-T1</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=5" title="Edit section: 100BASE-T1"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">For broader coverage of this topic, see <a href="/wiki/Ethernet_over_twisted_pair#Single-pair" title="Ethernet over twisted pair">Ethernet over twisted pair § Single-pair</a>.</div> <p>In <b>100BASE-T1</b><sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> the data is transmitted over a single copper pair, 3 bits per symbol, each transmitted as code pair using PAM3. It supports full-duplex transmission. The twisted-pair cable is required to support 66 MHz, with a maximum length of 15 m. No specific connector is defined. The standard is intended for automotive applications or when Fast Ethernet is to be integrated into another application. It was developed as <a href="/wiki/Open_Alliance_BroadR-Reach" class="mw-redirect" title="Open Alliance BroadR-Reach">Open Alliance BroadR-Reach</a> (OABR) before IEEE standardization.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="100BASE-T2">100BASE-T2</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=6" title="Edit section: 100BASE-T2"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable" style="float: right; margin: 0 0 1em 1em;"> <caption>100BASE-T2 symbols to <a href="/wiki/PAM-5" class="mw-redirect" title="PAM-5">PAM-5</a> line modulation level mapping </caption> <tbody><tr> <th>Symbol</th> <th>Line signal level </th></tr> <tr> <td>000</td> <td>0 </td></tr> <tr> <td>001</td> <td>+1 </td></tr> <tr> <td>010</td> <td>−1 </td></tr> <tr> <td>011</td> <td>−2 </td></tr> <tr> <td>100 (ESC)</td> <td>+2 </td></tr></tbody></table> <p>In <b>100BASE-T2</b>, standardized in IEEE 802.3y, the data is transmitted over two copper pairs, but these pairs are only required to be Category 3 rather than the Category 5 required by 100BASE-TX. Data is transmitted and received on both pairs simultaneously<sup id="cite_ref-Breyer_and_Riley_10-0" class="reference"><a href="#cite_note-Breyer_and_Riley-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> thus allowing full-duplex operation. Transmission uses 4 bits per symbol. The 4-bit symbol is expanded into two 3-bit symbols through a non-trivial scrambling procedure based on a <a href="/wiki/Linear-feedback_shift_register" title="Linear-feedback shift register">linear-feedback shift register</a>.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> This is needed to flatten the bandwidth and emission spectrum of the signal, as well as to match transmission line properties. The mapping of the original bits to the symbol codes is not constant in time and has a fairly large period (appearing as a pseudo-random sequence). The final mapping from symbols to <a href="/wiki/PAM-5" class="mw-redirect" title="PAM-5">PAM-5</a> line modulation levels obeys the table on the right. 100BASE-T2 was not widely adopted but the technology developed for it is used in 1000BASE-T.<sup id="cite_ref-TDG_ETH_2nd_5-1" class="reference"><a href="#cite_note-TDG_ETH_2nd-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="100BASE-T4">100BASE-T4</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=7" title="Edit section: 100BASE-T4"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><b>100BASE-T4</b> was an early implementation of Fast Ethernet. It required four twisted copper pairs of <a href="/wiki/Category_3_cable" title="Category 3 cable">voice grade twisted pair</a>, a lower-performing cable compared to <a href="/wiki/Category_5_cable" title="Category 5 cable">Category 5 cable</a> used by 100BASE-TX. Maximum distance was limited to 100 meters. One pair was reserved for transmit and one for receive, and the remaining two switched direction. The fact that three pairs were used to transmit in each direction made 100BASE-T4 inherently half-duplex. Using three cable pairs allowed it to reach 100 mbps while running at lower carrier frequencies, which allowed it to run on older cabling that many companies had recently installed for 10BASE-T networks. </p><p>A very unusual <a href="/w/index.php?title=8B6T&action=edit&redlink=1" class="new" title="8B6T (page does not exist)">8B6T</a> code was used to convert 8 data bits into 6 base-3 digits (the signal shaping is possible as there are nearly three times as many 6-digit base-3 numbers as there are 8-digit base-2 numbers). The two resulting 3-digit base-3 symbols were sent in parallel over three pairs using 3-level <a href="/wiki/Pulse-amplitude_modulation" title="Pulse-amplitude modulation">pulse-amplitude modulation</a> (PAM-3). </p><p>100BASE-T4 was not widely adopted but some of the technology developed for it is used in <a href="/wiki/1000BASE-T" class="mw-redirect" title="1000BASE-T">1000BASE-T</a>.<sup id="cite_ref-TDG_ETH_2nd_5-2" class="reference"><a href="#cite_note-TDG_ETH_2nd-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> Very few hubs were released with 100BASE-T4 support. Some examples include the <a href="/wiki/3com" class="mw-redirect" title="3com">3com</a> 3C250-T4 Superstack II HUB 100, <a href="/wiki/IBM" title="IBM">IBM</a> 8225 Fast Ethernet Stackable Hub<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> and <a href="/wiki/Intel" title="Intel">Intel</a> LinkBuilder FMS 100 T4.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> The same applies to <a href="/wiki/Network_interface_controller" title="Network interface controller">network interface controllers</a>. Bridging 100BASE-T4 with 100BASE-TX required additional network equipment. </p> <div class="mw-heading mw-heading3"><h3 id="100BaseVG">100BaseVG</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=8" title="Edit section: 100BaseVG"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">Main article: <a href="/wiki/100BaseVG" title="100BaseVG">100BaseVG</a></div> <p>Proposed and marketed by <a href="/wiki/Hewlett-Packard" title="Hewlett-Packard">Hewlett-Packard</a>, 100BaseVG was an alternative design using category 3 cabling and a token concept instead of CSMA/CD. It was slated for standardization as IEEE 802.12 but it quickly vanished when switched 100BASE-TX became popular. The IEEE standard was later withdrawn.<sup id="cite_ref-vg_15-0" class="reference"><a href="#cite_note-vg-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> </p><p>VG was similar to T4 in that it used more cable pairs combined with a lower carrier frequency to allow it to reach 100 mbps on voice-grade cables. It differed in the way those cables were assigned. Whereas T4 would use the two extra pairs in different directions depending on the direction of data exchange, VG instead used two transmission modes. In one, control, two pairs are used for transmission and reception as in classic Ethernet, while the other two pairs are used for <a href="/wiki/Ethernet_flow_control" title="Ethernet flow control">flow control</a>. In the second mode, transmission, all four are used to transfer data in a single direction. The hubs implemented a <a href="/wiki/Token_passing" title="Token passing">token passing</a> scheme to choose which of the attached nodes were allowed to communicate at any given time, based on signals sent to it from the nodes using control mode. When one node was selected to become active, it would switch to transfer mode, send or receive a packet, and return to control mode.<sup id="cite_ref-vg_15-1" class="reference"><a href="#cite_note-vg-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> </p><p>This concept was intended to solve two problems. The first was that it eliminated the need for collision detection and thereby reduced contention on busy networks. While any particular node may find itself throttled due to heavy traffic, the network as a whole would not end up losing efficiency due to collisions and the resulting rebroadcasts. Under heavy use, the total throughput was increased compared to the other standards. The other was that the hubs could examine the payload types and schedule the nodes based on their bandwidth requirements. For instance, a node sending a video signal may not require much bandwidth but will require it to be predictable in terms of when it is delivered. A VG hub could schedule access on that node to ensure it received the transmission timeslots it needed while opening up the network at all other times to the other nodes. This style of access was known as <a href="/wiki/Demand_priority" class="mw-redirect" title="Demand priority">demand priority</a>.<sup id="cite_ref-vg_15-2" class="reference"><a href="#cite_note-vg-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Fiber_optics">Fiber optics</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=9" title="Edit section: Fiber optics"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Fiber variants use <a href="/wiki/Fiber-optic_cable" title="Fiber-optic cable">fiber-optic cable</a> with the listed interface types. Interfaces may be fixed or modular, often as <a href="/wiki/Small_form-factor_pluggable" class="mw-redirect" title="Small form-factor pluggable">small form-factor pluggable</a> (SFP). </p> <table class="wikitable" style="text-align:left"> <caption>Legend for fibre-based PHYs<sup id="cite_ref-TDG_ETH_2nd_5-3" class="reference"><a href="#cite_note-TDG_ETH_2nd-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </caption> <tbody><tr> <th>Fibre type</th> <th>Introduced</th> <th>Performance </th></tr> <tr> <td style="background-color:orange"><a href="/wiki/Multimode_fibre" class="mw-redirect" title="Multimode fibre">MMF</a> FDDI 62.5/125 µm</td> <td>1987</td> <td><span style="visibility:hidden;color:transparent;">0</span>160 MHz·km @ 850 nm </td></tr> <tr> <td style="background-color:orange"><a href="/wiki/Multimode_fibre" class="mw-redirect" title="Multimode fibre">MMF</a> OM1 62.5/125 µm</td> <td>1989</td> <td><span style="visibility:hidden;color:transparent;">0</span>200 MHz·km @ 850 nm </td></tr> <tr> <td style="background-color:orange"><a href="/wiki/Multimode_fibre" class="mw-redirect" title="Multimode fibre">MMF</a> OM2 50/125 µm</td> <td>1998</td> <td><span style="visibility:hidden;color:transparent;">0</span>500 MHz·km @ 850 nm </td></tr> <tr> <td style="background-color:#7DF9FF"><a href="/wiki/Multimode_fibre" class="mw-redirect" title="Multimode fibre">MMF</a> OM3 50/125 µm</td> <td>2003</td> <td>1500 MHz·km @ 850 nm </td></tr> <tr> <td style="background-color:#FF79BC"><a href="/wiki/Multimode_fibre" class="mw-redirect" title="Multimode fibre">MMF</a> OM4 50/125 µm</td> <td>2008</td> <td>3500 MHz·km @ 850 nm </td></tr> <tr> <td style="background-color:#66FF00"><a href="/wiki/Multimode_fibre" class="mw-redirect" title="Multimode fibre">MMF</a> OM5 50/125 µm</td> <td>2016</td> <td>3500 MHz·km @ 850 nm + 1850 MHz·km @ 950 nm </td></tr> <tr> <td style="background-color:yellow"><a href="/wiki/Single_mode_fibre" class="mw-redirect" title="Single mode fibre">SMF</a> OS1 9/125 µm</td> <td>1998</td> <td>1.0 dB/km @ 1300/1550 nm </td></tr> <tr> <td style="background-color:yellow"><a href="/wiki/Single_mode_fibre" class="mw-redirect" title="Single mode fibre">SMF</a> OS2 9/125 µm</td> <td>2000</td> <td>0.4 dB/km @ 1300/1550 nm </td></tr></tbody></table> <table class="wikitable" style="line-height:110%;"> <tbody><tr> <th>Name </th> <th>Standard </th> <th>Status </th> <th style="width: 170px;">Media </th> <th>Connector </th> <th><small>Transceiver<br />Module</small> </th> <th>Reach<br />in m </th> <th><small>#<br /><style data-mw-deduplicate="TemplateStyles:r1038841319">.mw-parser-output .tooltip-dotted{border-bottom:1px dotted;cursor:help}</style><span class="rt-commentedText tooltip tooltip-dotted" title="Number of physical media (wires/fibers) needed for bidirectional traffic">Media</span><br />(⇆)</small> </th> <th><small>#<br /><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1038841319"><span class="rt-commentedText tooltip tooltip-dotted" title="Number of wavelengths used in each direction">Lambdas</span><br />(→)</small> </th> <th><small>#<br /><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1038841319"><span class="rt-commentedText tooltip tooltip-dotted" title="Number of lanes (on the wire/fiber) in each direction">Lanes</span><br />(→)</small> </th> <th>Notes </th></tr> <tr> <td colspan="11" style="background:#FFB; color:black;vertical-align:middle;text-align:center;" class="table-partial"><b>Fast Ethernet</b> – <small>(<a href="/wiki/Data_signaling_rate" title="Data signaling rate">Data rate</a>: 100 Mbit/s – <a href="/wiki/Line_code" title="Line code">Line code</a>: <a href="/wiki/4B5B" title="4B5B">4B5B</a> × <a href="/wiki/NRZI" class="mw-redirect" title="NRZI">NRZI</a> – Line rate: 125 <a href="/wiki/MBd" class="mw-redirect" title="MBd">MBd</a> – Full-Duplex / Half-Duplex)</small> </td></tr> <tr> <td rowspan="3"><span class="nowrap"><a class="mw-selflink-fragment" href="#100BASE‑FX">100BASE‑FX</a></span> </td> <td rowspan="3"><span class="nowrap">802.3u-1995</span><br /><small>(CL24/26)</small> </td> <td rowspan="3" style="background: #9EFF9E; color:black; vertical-align: middle; text-align: center;" class="active table-active">current </td> <td rowspan="3" style="background: #DEF; color:black; vertical-align: middle; text-align: center;" class="table-cast">fiber<br /><small><b><span style="color: #F88379;">1300 nm</span></b></small> </td> <td rowspan="3" style="background: #DEF; color:black; vertical-align: middle; text-align: center;" class="table-cast">ST<br /> SC<br /> <span class="nowrap">MT-RJ</span><br /> MIC (FDDI) </td> <td rowspan="3" data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td style="background-color:orange"><span class="nowrap">FDDI: 2k (FDX)</span> </td> <td rowspan="3" align="right">2 </td> <td rowspan="3" align="right">1 </td> <td rowspan="3" align="right">1 </td> <td rowspan="3"><small>max. 412 m for half-duplex connections to ensure collision detection;<br />specification largely derived from FDDI.<br /><a href="/wiki/Modal_bandwidth" title="Modal bandwidth">Modal bandwidth</a>: 800 MHz·km</small> <sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-MOXA-EDS408A-datasheet_17-0" class="reference"><a href="#cite_note-MOXA-EDS408A-datasheet-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td style="background-color:orange"><span class="nowrap">OM1: 4k</span> </td></tr> <tr> <td style="background-color:orange"><span class="nowrap">50/125: 5k</span> </td></tr> <tr> <td rowspan="5"><span class="nowrap"><a class="mw-selflink-fragment" href="#100BASE‑LFX">100BASE‑LFX</a></span> </td> <td rowspan="5" style="background:#FFB; color:black;vertical-align:middle;text-align:center;" class="table-partial"><i>proprietary<br /><small>(non IEEE)</small></i> </td> <td rowspan="5" style="background: #9EFF9E; color:black; vertical-align: middle; text-align: center;" class="active table-active">current </td> <td rowspan="5" style="background: #DEF; color:black; vertical-align: middle; text-align: center;" class="table-cast">fiber<br /><small><b><span style="color: #F88379;">1310 nm</span></b></small> </td> <td rowspan="5" style="background: #DEF; color:black; vertical-align: middle; text-align: center;" class="table-cast">LC (SFP)<br />ST<br />SC </td> <td rowspan="5" align="center">SFP </td> <td style="background-color:orange"><span class="nowrap">OM1: 2k</span> </td> <td rowspan="5" align="right">2 </td> <td rowspan="5" align="right">1 </td> <td rowspan="5" align="right">1 </td> <td rowspan="5"><small>vendor-specific<br /> FP laser transmitter<br />Full-duplex<br /><a href="/wiki/Modal_bandwidth" title="Modal bandwidth">Modal bandwidth</a>: 800 MHz·km</small> <sup id="cite_ref-MOXA-1fe-datasheet_18-0" class="reference"><a href="#cite_note-MOXA-1fe-datasheet-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td style="background-color:orange"><span class="nowrap">OM2: 2k</span> </td></tr> <tr> <td style="background-color:orange"><span class="nowrap">62.5/125: 4k</span> </td></tr> <tr> <td style="background-color:orange"><span class="nowrap">50/125: 4k</span> </td></tr> <tr> <td style="background-color:yellow"><span class="nowrap">OSx: 40k<sup id="cite_ref-MOXA-EDS408A-datasheet_17-1" class="reference"><a href="#cite_note-MOXA-EDS408A-datasheet-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup></span> </td></tr> <tr> <td rowspan="2"><span class="nowrap"><a href="/wiki/100BASE-SX" class="mw-redirect" title="100BASE-SX">100BASE-SX</a></span> </td> <td rowspan="2" style="background:#FFB; color:black;vertical-align:middle;text-align:center;" class="table-partial"><span class="nowrap">TIA-785<br />(2000)</span> </td> <td rowspan="2" style="background:#FFB; color:black;vertical-align:middle;text-align:center;" class="table-partial">legacy </td> <td rowspan="2" style="background: #DEF; color:black; vertical-align: middle; text-align: center;" class="table-cast">fiber<br /><small><b><span style="color:red;">850 nm</span></b></small> </td> <td rowspan="2" style="background: #DEF; color:black; vertical-align: middle; text-align: center;" class="table-cast">ST<br />SC<br />LC </td> <td rowspan="2" data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">— </td> <td style="background-color:orange"><span class="nowrap">OM1: 300</span> </td> <td rowspan="2" align="right">2 </td> <td rowspan="2" align="right">1 </td> <td rowspan="2" align="right">1 </td> <td rowspan="2"><small>optics sharable with 10BASE-FL, thus making it possible to have an auto-negotiation scheme and use 10/100 fiber adapters.</small> </td></tr> <tr> <td style="background-color:orange"><span class="nowrap">OM2: 300</span> </td></tr> <tr> <td><span class="nowrap"><a href="/wiki/100BASE-LX10" class="mw-redirect" title="100BASE-LX10">100BASE-LX10</a></span> </td> <td rowspan="2"><span class="nowrap">802.3ah-2004</span><br /><small>(CL58)</small> </td> <td style="background:#FFB; color:black;vertical-align:middle;text-align:center;" class="table-partial">phase-out </td> <td style="background: #DEF; color:black; vertical-align: middle; text-align: center;" class="table-cast">fiber<br /><small><b><span style="color: #F88379;">1310 nm</span></b></small> </td> <td rowspan="2" style="background: #DEF; color:black; vertical-align: middle; text-align: center;" class="table-cast">LC </td> <td rowspan="2" align="center"><small><b>SFP</b></small> </td> <td style="background-color:yellow"><span class="nowrap">OSx: 10k</span> </td> <td style="text-align:right;">2 </td> <td rowspan="2" align="right">1 </td> <td rowspan="2" align="right">1 </td> <td><small><b>full-duplex only</b></small> </td></tr> <tr> <td><span class="nowrap"><a class="mw-selflink-fragment" href="#100BASE-BX10">100BASE-BX10</a></span> </td> <td style="background:#FFB; color:black;vertical-align:middle;text-align:center;" class="table-partial">phase-out </td> <td style="background: #DEF; color:black; vertical-align: middle; text-align: center;" class="table-cast">fiber<br /><small><b><span class="nowrap">TX: <span style="color: #F88379;">1310 nm</span><br />RX: <span style="color: #F49AC2;">1550 nm</span></span></b></small> </td> <td style="background-color:yellow"><span class="nowrap">OSx: 40k</span> </td> <td style="text-align:right;">1 </td> <td><small><b>full-duplex only</b>;<br />optical multiplexer used to split TX and RX signals into different wavelengths.</small> </td></tr> </tbody></table> <div class="mw-heading mw-heading3"><h3 id="Fast_Ethernet_SFP_ports">Fast Ethernet SFP ports</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=10" title="Edit section: Fast Ethernet SFP ports"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Fast Ethernet speed is not available on all SFP ports,<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> but supported by some devices.<sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> An SFP port for <a href="/wiki/Gigabit_Ethernet" title="Gigabit Ethernet">Gigabit Ethernet</a> should not be assumed to be backwards compatible with Fast Ethernet. </p> <div class="mw-heading mw-heading3"><h3 id="Optical_interoperability">Optical interoperability</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=11" title="Edit section: Optical interoperability"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>To have interoperability there are some criteria that have to be met:<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> </p> <ul><li><a href="/wiki/Line_encoding" class="mw-redirect" title="Line encoding">Line encoding</a></li> <li><a href="/wiki/Wavelength" title="Wavelength">Wavelength</a><sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>a<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Duplex_(telecommunications)" title="Duplex (telecommunications)">Duplex mode</a></li> <li>Media count</li> <li>Media type and dimension</li></ul> <p>100BASE-X Ethernet is not backward compatible with <a href="/wiki/10BASE-F" class="mw-redirect" title="10BASE-F">10BASE-F</a> and is not forward compatible with <a href="/wiki/1000BASE-X" class="mw-redirect" title="1000BASE-X">1000BASE-X</a>. </p> <div class="mw-heading mw-heading3"><h3 id="100BASE-FX">100BASE-FX</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=12" title="Edit section: 100BASE-FX"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>100BASE-FX is a version of Fast Ethernet over <a href="/wiki/Optical_fiber" title="Optical fiber">optical fiber</a>. The 100BASE-FX <a href="/wiki/Physical_medium_dependent" title="Physical medium dependent">physical medium dependent</a> (PMD) sublayer is defined by <a href="/wiki/FDDI" class="mw-redirect" title="FDDI">FDDI</a>'s PMD,<sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> so 100BASE-FX is not compatible with <a href="/wiki/10BASE-FL" class="mw-redirect" title="10BASE-FL">10BASE-FL</a>, the 10 Mbit/s version over optical fiber. </p><p>100BASE-FX is still used for existing installation of <a href="/wiki/Multimode_fiber" class="mw-redirect" title="Multimode fiber">multimode fiber</a> where more speed is not required, like industrial automation plants.<sup id="cite_ref-MOXA-EDS408A-datasheet_17-2" class="reference"><a href="#cite_note-MOXA-EDS408A-datasheet-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="100BASE-LFX">100BASE-LFX</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=13" title="Edit section: 100BASE-LFX"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>100BASE-LFX is a non-standard term to refer to Fast Ethernet transmission. It is very similar to 100BASE-FX but achieves longer distances up to 4–5 km over a pair of multi-mode fibers through the use of <a href="/wiki/Fabry%E2%80%93P%C3%A9rot" class="mw-redirect" title="Fabry–Pérot">Fabry–Pérot</a> laser transmitter<sup id="cite_ref-26" class="reference"><a href="#cite_note-26"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup> running on 1310 nm wavelength. The signal attenuation per km at 1300 nm is about half the loss of 850 nm.<sup id="cite_ref-Fluke-Fiber_27-0" class="reference"><a href="#cite_note-Fluke-Fiber-27"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-28" class="reference"><a href="#cite_note-28"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="100BASE-SX">100BASE-SX</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=14" title="Edit section: 100BASE-SX"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>100BASE-SX is a version of Fast Ethernet over optical fiber standardized in TIA/EIA-785-1-2002. It is a lower-cost, shorter-distance alternative to 100BASE-FX. Because of the shorter wavelength used (850 nm) and the shorter distance supported, 100BASE-SX uses less expensive optical components (LEDs instead of lasers). </p><p>Because it uses the same wavelength as <a href="/wiki/10BASE-FL" class="mw-redirect" title="10BASE-FL">10BASE-FL</a>, the 10 Mbit/s version of Ethernet over optical fiber, 100BASE-SX can be backward-compatible with 10BASE-FL. Cost and compatibility makes 100BASE-SX an attractive option for those upgrading from 10BASE-FL and those who do not require long distances. </p> <div class="mw-heading mw-heading3"><h3 id="100BASE-LX10">100BASE-LX10</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=15" title="Edit section: 100BASE-LX10"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>100BASE-LX10 is a version of Fast Ethernet over optical fiber standardized in 802.3ah-2004 clause 58. It has a 10 km reach over a pair of single-mode fibers. </p> <div class="mw-heading mw-heading3"><h3 id="100BASE-BX10">100BASE-BX10</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=16" title="Edit section: 100BASE-BX10"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>100BASE-BX10 is a version of Fast Ethernet over optical fiber standardized in 802.3ah-2004 clause 58. It uses an optical multiplexer to split TX and RX signals into different wavelengths on the same fiber. It has a 10 km reach over a single strand of single-mode fiber. </p> <div class="mw-heading mw-heading3"><h3 id="100BASE-EX">100BASE-EX</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=17" title="Edit section: 100BASE-EX"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>100BASE-EX is very similar to 100BASE-LX10 but achieves longer distances up to 40 km over a pair of single-mode fibers due to higher quality optics than a LX10, running on 1310 nm wavelength lasers. 100BASE-EX is not a formal standard but industry-accepted term.<sup id="cite_ref-FS-GLC-FE-100EX_29-0" class="reference"><a href="#cite_note-FS-GLC-FE-100EX-29"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup> It is sometimes referred to as 100BASE-LH (long haul), and is easily confused with 100BASE-LX10 or 100BASE-ZX because the use of -LX(10), -LH, -EX, and -ZX is ambiguous between vendors. </p> <div class="mw-heading mw-heading3"><h3 id="100BASE-ZX">100BASE-ZX</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=18" title="Edit section: 100BASE-ZX"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>100BASE-ZX is a non-standard but multi-vendor<sup id="cite_ref-FS-SFP-100ZX-55_30-0" class="reference"><a href="#cite_note-FS-SFP-100ZX-55-30"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup><sup class="noprint Inline-Template noprint noexcerpt Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:NOTRS" class="mw-redirect" title="Wikipedia:NOTRS"><span title="This claim needs references to better sources. (February 2021)">better source needed</span></a></i>]</sup> term to refer to Fast Ethernet transmission using 1,550 nm wavelength to achieve distances of at least 70 km over single-mode fiber. Some vendors specify distances up to 160 km over single-mode fiber, sometimes called 100BASE-EZX. Ranges beyond 80 km are highly dependent upon the path loss of the fiber in use, specifically the attenuation figure in dB per km, the number and quality of connectors/patch panels and splices located between transceivers.<sup id="cite_ref-31" class="reference"><a href="#cite_note-31"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=19" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/List_of_interface_bit_rates" title="List of interface bit rates">List of interface bit rates</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Notes">Notes</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=20" title="Edit section: Notes"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-lower-alpha"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-24"><span class="mw-cite-backlink"><b><a href="#cite_ref-24">^</a></b></span> <span class="reference-text">It may possible for certain types of optics to work with a mismatch in wavelength.<sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=21" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239543626"><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation book cs1"><i>IEEE 802.3u-1995</i>. <a href="/wiki/IEEE" class="mw-redirect" title="IEEE">IEEE</a>. October 26, 1995. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1109%2FIEEESTD.1995.7974916">10.1109/IEEESTD.1995.7974916</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-7381-0276-4" title="Special:BookSources/978-0-7381-0276-4"><bdi>978-0-7381-0276-4</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=IEEE+802.3u-1995&rft.pub=IEEE&rft.date=1995-10-26&rft_id=info%3Adoi%2F10.1109%2FIEEESTD.1995.7974916&rft.isbn=978-0-7381-0276-4&rfr_id=info%3Asid%2Fen.wikipedia.org%3AFast+Ethernet" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFH._Frazier2002" class="citation journal cs1">H. Frazier (2002) [1998]. "The 802.3z Gigabit Ethernet Standard". <i>IEEE Network</i>. <b>12</b> (3). IEEE: 6–7. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1109%2F65.690946">10.1109/65.690946</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=IEEE+Network&rft.atitle=The+802.3z+Gigabit+Ethernet+Standard&rft.volume=12&rft.issue=3&rft.pages=6-7&rft.date=2002&rft_id=info%3Adoi%2F10.1109%2F65.690946&rft.au=H.+Frazier&rfr_id=info%3Asid%2Fen.wikipedia.org%3AFast+Ethernet" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.juniper.net/techpubs/hardware/erx/junose103/hw-erx-module/oc3-ge-fe-w-aps.html">"OC3/STM1 GE/FE Module Combination - ERX 10.3.x Module Guide"</a>. <a href="/wiki/Juniper_Networks" title="Juniper Networks">Juniper Networks</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=OC3%2FSTM1+GE%2FFE+Module+Combination+-+ERX+10.3.x+Module+Guide&rft.pub=Juniper+Networks&rft_id=https%3A%2F%2Fwww.juniper.net%2Ftechpubs%2Fhardware%2Ferx%2Fjunose103%2Fhw-erx-module%2Foc3-ge-fe-w-aps.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AFast+Ethernet" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.cisco.com/c/en/us/products/collateral/interfaces-modules/fast-ethernet-sfp-modules/product_data_sheet0900aecd801f931c.html">"Cisco 100BASE-X Small Form-Factor Pluggable Modules for Fast Ethernet Applications Data Sheet"</a>. Cisco.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Cisco+100BASE-X+Small+Form-Factor+Pluggable+Modules+for+Fast+Ethernet+Applications+Data+Sheet&rft.pub=Cisco&rft_id=http%3A%2F%2Fwww.cisco.com%2Fc%2Fen%2Fus%2Fproducts%2Fcollateral%2Finterfaces-modules%2Ffast-ethernet-sfp-modules%2Fproduct_data_sheet0900aecd801f931c.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AFast+Ethernet" class="Z3988"></span></span> </li> <li id="cite_note-TDG_ETH_2nd-5"><span class="mw-cite-backlink">^ <a href="#cite_ref-TDG_ETH_2nd_5-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-TDG_ETH_2nd_5-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-TDG_ETH_2nd_5-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-TDG_ETH_2nd_5-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFCharles_E._Spurgeon2014" class="citation book cs1">Charles E. Spurgeon (2014). <i>Ethernet: The Definitive Guide</i> (2nd ed.). O'Reilly Media. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-1-4493-6184-6" title="Special:BookSources/978-1-4493-6184-6"><bdi>978-1-4493-6184-6</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Ethernet%3A+The+Definitive+Guide&rft.edition=2nd&rft.pub=O%27Reilly+Media&rft.date=2014&rft.isbn=978-1-4493-6184-6&rft.au=Charles+E.+Spurgeon&rfr_id=info%3Asid%2Fen.wikipedia.org%3AFast+Ethernet" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20140707221928/http://www.trinetusa.com/images/catalog/pages31-40.pdf">"CAT5E Adapters"</a> <span class="cs1-format">(PDF)</span>. Archived from <a rel="nofollow" class="external text" href="http://www.trinetusa.com/images/catalog/pages31-40.pdf">the original</a> <span class="cs1-format">(PDF)</span> on 2014-07-07<span class="reference-accessdate">. Retrieved <span class="nowrap">2012-12-17</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=CAT5E+Adapters&rft_id=http%3A%2F%2Fwww.trinetusa.com%2Fimages%2Fcatalog%2Fpages31-40.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AFast+Ethernet" class="Z3988"></span></span> </li> <li id="cite_note-mlt3-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-mlt3_7-0">^</a></b></span> <span class="reference-text">"The 100BASE-TX PMD (and MDI) is specified by incorporating the FDDI TP-PMD standard, ANSI X3.263: 1995 (TP-PMD), by reference, with the modifications noted below." (section 25.2 of IEEE802.3-2002).</span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text">IEEE 802.3bw-2015 Clause 96</span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFJunko_Yoshida2015" class="citation web cs1">Junko Yoshida (2015-12-01). <a rel="nofollow" class="external text" href="http://www.eetimes.com/document.asp?doc_id=1328371">"Driven by IEEE Standards, Ethernet Hits the Road in 2016"</a>. EETimes<span class="reference-accessdate">. Retrieved <span class="nowrap">2016-10-06</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Driven+by+IEEE+Standards%2C+Ethernet+Hits+the+Road+in+2016&rft.pub=EETimes&rft.date=2015-12-01&rft.au=Junko+Yoshida&rft_id=http%3A%2F%2Fwww.eetimes.com%2Fdocument.asp%3Fdoc_id%3D1328371&rfr_id=info%3Asid%2Fen.wikipedia.org%3AFast+Ethernet" class="Z3988"></span></span> </li> <li id="cite_note-Breyer_and_Riley-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-Breyer_and_Riley_10-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFRobert_Breyer_and_Sean_Riley1999" class="citation book cs1">Robert Breyer and Sean Riley (1999). <i>Switched, Fast, and Gigabit Ethernet</i>. Macmillan Technical Publishing. p. 107.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Switched%2C+Fast%2C+and+Gigabit+Ethernet&rft.pages=107&rft.pub=Macmillan+Technical+Publishing&rft.date=1999&rft.au=Robert+Breyer+and+Sean+Riley&rfr_id=info%3Asid%2Fen.wikipedia.org%3AFast+Ethernet" class="Z3988"></span></span> </li> <li id="cite_note-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-11">^</a></b></span> <span class="reference-text">IEEE 802.3y</span> </li> <li id="cite_note-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-12">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.ibm.com/common/ssi/cgi-bin/ssialias?appname=skmwww&htmlfid=897%2FENUS196-117&infotype=AN&mhq=IBM%20Network%20Station%208361%20Series%20100&mhsrc=ibmsearch_a&subtype=CA">"IBM 8225 Fast Ethernet Stackable Hub Hardware Announcement"</a>. <i><a href="/wiki/IBM" title="IBM">IBM</a></i>. 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IEEE Standards Association. Archived from <a rel="nofollow" class="external text" href="https://standards.ieee.org/findstds/standard/802.12-1995.html">the original</a> on April 19, 2014<span class="reference-accessdate">. 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Retrieved <span class="nowrap">21 March</span> 2020</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Skylane+Optics&rft.atitle=SFP15160FE0B+%2F+SFP+%2F+100BASE-eZX&rft_id=https%3A%2F%2Fwww.skylaneoptics.com%2Fen%2Fproduct%2Fsfp15160fe0b-sfp-100base-ezx%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AFast+Ethernet" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Fast_Ethernet&action=edit&section=22" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20080916221133/http://www.cs.bsu.edu/homepages/peb/cs637/ethernet/100mbps.htm">Common 100 Mbit/s Hardware Variations</a></li> <li><a rel="nofollow" class="external text" href="http://www.inetdaemon.com/tutorials/networking/lan/ethernet/origins.shtml">Origins and History of Ethernet</a></li> <li><a rel="nofollow" class="external text" href="https://ieeexplore.ieee.org/browse/standards/get-program/page/series?id=68">IEEE802.3 standards free download</a></li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20121009212203/http://www.hp.com/rnd/pdfs/100FXtechbrief.pdf">ProCurve Networking 100BASE-FX Technical Brief</a></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl 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title="Template talk:Ethernet"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Ethernet" title="Special:EditPage/Template:Ethernet"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Ethernet_family_of_local_area_network_technologies" style="font-size:114%;margin:0 4em"><a href="/wiki/Ethernet" title="Ethernet">Ethernet</a> family of <a href="/wiki/Local_area_network" title="Local area network">local area network</a> technologies</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Speeds</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Classic_Ethernet" title="Classic Ethernet">10 Mbit/s</a></li> <li><a class="mw-selflink selflink">100 Mbit/s</a></li> <li><a href="/wiki/Gigabit_Ethernet" title="Gigabit Ethernet">1 Gbit/s</a></li> <li><a href="/wiki/2.5GBASE-T_and_5GBASE-T" title="2.5GBASE-T and 5GBASE-T">2.5 and 5 Gbit/s</a></li> <li><a href="/wiki/10_Gigabit_Ethernet" title="10 Gigabit Ethernet">10 Gbit/s</a></li> <li><a href="/wiki/25_Gigabit_Ethernet" title="25 Gigabit Ethernet">25 and 50 Gbit/s</a></li> <li><a href="/wiki/100_Gigabit_Ethernet" title="100 Gigabit Ethernet">40 and 100 Gbit/s</a></li> <li><a href="/wiki/Terabit_Ethernet" title="Terabit Ethernet">200, 400, 800 and 1600 Gbit/s</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">General</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ethernet_physical_layer" title="Ethernet physical layer">Physical layer</a></li> <li><a href="/wiki/Autonegotiation" title="Autonegotiation">Autonegotiation</a></li> <li><a href="/wiki/EtherType" title="EtherType">EtherType</a></li> <li><a href="/wiki/Ethernet_flow_control" title="Ethernet flow control">Flow control</a></li> <li><a href="/wiki/Ethernet_frame" title="Ethernet frame">Frames</a></li> <li><a href="/wiki/Jumbo_frame" title="Jumbo frame">Jumbos</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Organizations</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IEEE_802.3" title="IEEE 802.3">IEEE 802.3</a></li> <li><a href="/wiki/Ethernet_Alliance" title="Ethernet Alliance">Ethernet Alliance</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Media</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ethernet_over_fiber" title="Ethernet over fiber">Fiber</a></li> <li><a href="/wiki/Ethernet_over_twisted_pair" title="Ethernet over twisted pair">Twisted pair</a></li> <li><a href="/wiki/Ethernet_over_coax" title="Ethernet over coax">Coaxial</a></li> <li><a href="/wiki/Ethernet_in_the_first_mile" title="Ethernet in the first mile">First mile</a> <ul><li><a href="/wiki/10G-EPON" title="10G-EPON">10G-EPON</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Historic</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Carrier-sense_multiple_access_with_collision_detection" title="Carrier-sense multiple access with collision detection">CSMA/CD</a></li> <li><a href="/wiki/StarLAN" title="StarLAN">StarLAN</a></li> <li><a href="/wiki/10BROAD36" title="10BROAD36">10BROAD36</a></li> <li><a href="/wiki/10BASE-FB" class="mw-redirect" title="10BASE-FB">10BASE-FB</a></li> <li><a href="/wiki/10BASE-FL" class="mw-redirect" title="10BASE-FL">10BASE-FL</a></li> <li><a href="/wiki/10BASE5" title="10BASE5">10BASE5</a></li> <li><a href="/wiki/10BASE2" title="10BASE2">10BASE2</a></li> <li><a href="/wiki/Medium_Attachment_Unit" title="Medium Attachment Unit">MAU</a></li> <li><a href="/wiki/Fiber-optic_inter-repeater_link" class="mw-redirect" title="Fiber-optic inter-repeater link">FOIRL</a></li> <li><a href="/wiki/100BaseVG" title="100BaseVG">100BaseVG</a></li> <li><a href="/wiki/LattisNet" title="LattisNet">LattisNet</a></li> <li><a href="/wiki/Long_Reach_Ethernet" title="Long Reach Ethernet">Long Reach</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Applications</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Audio_over_Ethernet" title="Audio over Ethernet">Audio</a></li> <li><a href="/wiki/Automotive_Ethernet" class="mw-redirect" title="Automotive Ethernet">Automotive</a></li> <li><a href="/wiki/Carrier_Ethernet" title="Carrier Ethernet">Carrier</a></li> <li><a href="/wiki/Data_center_bridging" title="Data center bridging">Data center</a></li> <li><a href="/wiki/Energy-Efficient_Ethernet" title="Energy-Efficient Ethernet">Energy Efficiency</a></li> <li><a href="/wiki/Industrial_Ethernet" title="Industrial Ethernet">Industrial</a></li> <li><a href="/wiki/Metro_Ethernet" title="Metro Ethernet">Metro</a></li> <li><a href="/wiki/Power_over_Ethernet" title="Power over Ethernet">Power</a></li> <li><a href="/wiki/Synchronous_Ethernet" title="Synchronous Ethernet">Synchronous</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Transceiver" title="Transceiver">Transceivers</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Gigabit_interface_converter" title="Gigabit interface converter">GBIC</a></li> <li><a href="/wiki/Small_Form-factor_Pluggable" title="Small Form-factor Pluggable">SFP/SFP+/QSFP/QSFP+/OSFP</a></li> <li><a href="/wiki/XENPAK" title="XENPAK">XENPAK</a>/<a href="/wiki/X2_transceiver" title="X2 transceiver">X2</a></li> <li><a href="/wiki/XFP_transceiver" title="XFP transceiver">XFP</a></li> <li><a href="/wiki/C_form-factor_pluggable" title="C form-factor pluggable">CFP</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Interfaces</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Attachment_Unit_Interface" title="Attachment Unit Interface">AUI</a></li> <li><a href="/wiki/EAD_socket" title="EAD socket">EAD</a></li> <li><a href="/wiki/Medium-dependent_interface" title="Medium-dependent interface">MDI</a></li> <li><a href="/wiki/Media-independent_interface" title="Media-independent interface">MII</a></li> <li><a href="/wiki/Gigabit_media-independent_interface" class="mw-redirect" title="Gigabit media-independent interface">GMII</a></li> <li><a href="/wiki/10_gigabit_media-independent_interface" 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