2BASE-TL

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2BASE-TL is an IEEE 802.3-2005 Physical Layer (PHY) specification for a full-duplex long reach point-to-point Ethernet link over voice-grade copper wiring.

2BASE-TL PHYs deliver a minimum of 2 Mbps over distances of up to 2.7 Km (9 Kft), using ITU-T G.991.2 (G.SHDSL.bis) technology over a single copper pair. These PHYs may also support an optional aggregation or bonding of multiple copper pairs, called PME Aggregation Function (PAF).

Unlike 10BASE-T, 100BASE-T and 1000BASE-T PHYs, providing a single rate of 10, 100 or 1000 Mbps respectively, 2BASE-TL link rate can vary, depending on the copper channel characteristics, such as length, wire diameter (gauge), number of pairs if the link is aggregated etc.

Contents 1 History 2 2BASE-TL Equipment Manufacturers 3 See also 4 External links

[edit] History

See EFM History.

[edit] 2BASE-TL Equipment Manufacturers

• Actelis Networks, Inc. (http://www.actelis.com)

[edit] See also

• Ethernet in the First Mile
• PME Aggregation Function
• 10PASS-TS

[edit] External links

• Get IEEE 802.3 - "IEEE Standard for Information technology - Telecommunications and information exchange between systems - Local and metropolitan area networks - Specific requirements - Part 3: Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications", IEEE Std 802.3-2005, December 2005.
• IEEE 802.3ah - Ethernet in the First Mile Task Force archive