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This is a list of interface bit rates, is a measure of information transfer rates, or digital bandwidth capacity, at which digital interfaces in a computer or network can communicate over various kinds of buses and channels.
Very high-speed digital subscriber line (VDSL) [1] and very high-speed digital subscriber line 2 (VDSL2) [2] are digital subscriber line (DSL) technologies providing data transmission faster than the earlier standards of asymmetric digital subscriber line (ADSL) G.992.1, G.992.3 (ADSL2) and G.992.5 (ADSL2+).
Digital subscriber line (DSL; originally digital subscriber loop) is a family of technologies that are used to transmit digital data over telephone lines. [1] In telecommunications marketing, the term DSL is widely understood to mean asymmetric digital subscriber line (ADSL), the most commonly installed DSL technology, for Internet access.
SDSL is a rate-adaptive digital subscriber line (DSL) variant with T1/E1-like data rates (T1: 1.544 Mbit/s, E1: 2.048 Mbit/s). It runs over one pair of copper wires, with a maximum range of 10,000 feet (3,000 m). It cannot co-exist with a conventional voice service on the same pair as it takes over the entire bandwidth. [1]
EarthLink logo from 1998–2015. EarthLink was founded in July 1994 by Sky Dayton when he was 23 years old. [9] Dayton was convinced of the need for a simple, user-friendly dial-up Internet service provider (ISP) after spending an entire week trying to configure his own computer for Internet access. [10]
The second graph is of more importance since it is attenuation which is the governing factor for line speed because attenuation rate over distance can vary significantly between various copper lines due to their quality and other factors. ADSL2 is able to extend the reach of extremely long lines that have around 90 dB attenuation. Standard ADSL ...
Since the objective is to provide DSL to locations where no other data service can reach, or is needed (e.g. onto a farm), and ordinary telephone service is very immune to cross talk from ADSL due to ADSL not using voice frequency range, the cross talk issue is further reduced. [6] Converting to G.shdsl or other technologies has problems too ...
DSL modems vary in data speed from hundreds of kilobits per second to many megabits, while voice-band modems are nominally 56K modems and actually limited to approximately 50 kbit/s. DSL modems exchange data with only the DSLAM to which they are wired, which in turn connects them to the Internet, while most voice-band modems can dial directly ...