Etherloop is a kind of
DSL technology that combines the features of
Ethernet and DSL. It allows the combination of voice and
data transmission on standard phone lines. Under the right conditions it will allow speeds of up to 6 megabits per second over a distance of up to 6.4 km (21,000 feet).
Etherloop uses
half-duplex transmission, and as such, is less susceptible to interference caused by poor line quality,
bridge taps, etc. Also, etherloop modems can train up through
line filters (although it is not recommended to do this).
Etherloop has been deployed by various internet service providers in areas where the loop length is very long or line quality is poor. Some Etherloop modems (those made by
Elastic Networks) offer a "Central Office mode", in which two modems are connected back to back over a phone line and used as a
LAN
Lan or LAN may also refer to:
Science and technology
* Local asymptotic normality, a fundamental property of regular models in statistics
* Longitude of the ascending node, one of the orbital elements used to specify the orbit of an object in sp ...
extension. An example of a situation where this would be done is to extend Ethernet to a building that is too far to reach with straight Ethernet.
See also
*
Ethernet in the first mile (especially
2BASE-TL)
References
{{DSL technologies
Computer networking