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Encyclopedia > G.SHDSL

Symmetric high-speed digital subscriber line (SHDSL) is a telecommunications technology for DSL subscriber lines. It describes a transmission method for signals on copper pair lines, being mostly used in Access networks to connect subscribers to Telephone exchanges or POP Access Points. BlackBerry 7100t Telecommunication refers to communication over long distances. ... This article needs to be cleaned up to conform to a higher standard of quality. ... DSL is a TLA that can stand for: Digital Subscriber Line Damn Small Linux Domain-specific language Divers Sign Language A derivation of American Sign Language which scuba divers use to communicate underwater This page concerning a three-letter acronym or abbreviation is a disambiguation page — a navigational aid which... In telecommunications, an access network is a network that connects subscribers to telecommunication service providers over public ground. ... Subscriber: In a public switched telecommunications network such as the common telephone system, the ultimate user, customer, of a communications service. ... central office = Exchange building in the U.S. telephone exchange = Exchange building in the UK, and is also the UK name for a telephone switch, and also has a technical meaning in U.S. telecoms telephone switch is the U.S. term, but is in increasing use in technical UK... Look up pop on Wiktionary, the free dictionary. ...


G.SHDSL was standardized in February 2001 internationally by ITU-T with recommendation G.991. The ITU Telecommunication Standardization Sector (ITU-T) coordinates standards for telecommunications on behalf of the International Telecommunication Union (ITU) and is based in Geneva, Switzerland. ...


It features symmetrical data rates from 192 kbit/s to 2,304 kbit/s of payload in 64 kbit/s increments for one pair and 384 kbit/s to 4,608 kbit/s in 128 kbit/s increments for two pair applications. The reach varies according to the loop rate and noise conditions (more noise or higher rate means decreased reach) and may be up to 3,000 meters. The two pair feature may alternatively be used for increased reach applications by keeping the data rate low (halving the data rate per pair will provide similar speeds to single pair lines while increasing the error/noise tolerance). In telecommunication, data signaling rate (DSR) is the aggregate rate at which data pass a point in the transmission path of a data transmission system. ... In cargo transport, the payload is the valuable contents of the vehicle. ... NOiSE is a one volume manga created by Tsutomu Nihei as a prequel to his much-acclaimed ten-volume work, Blame! It offers some rather sketchy information concerning the Megastructures origins and initial size, as well as the beginnings of silicon life ...


The payload may be either 'clear channel' (unstructured), T1 or E1 (full rate or fractional), n x ISDN Basic Rate Access (BRA), Asynchronous Transfer Mode (ATM) or 'dual bearer' mode (i.e. a mixture of two separate streams (e.g. T1 and 'packet based') sharing the payload bandwidth of the G.shdsl loop). Two Network Interface Units, one with a single card, the other with two In telecommunications, T-carrier is the generic designator for any of several digitally multiplexed telecommunications carrier systems originally developed by Bell Labs and used in North America and Japan. ... Two Network Interface Units, one with a single card, the other with two In telecommunications, T-carrier is the generic designator for any of several digitally multiplexed telecommunications carrier systems originally developed by Bell Labs and used in North America and Japan. ... ISDN is also short for isosorbide dinitrate Integrated Services Digital Network (ISDN) is a type of circuit switched telephone network system, designed to allow digital (as opposed to analog) transmission of voice and data over ordinary telephone copper wires, resulting in better quality and higher speeds, than available with analog... Bra has several meanings: Short for brassiere, an undergarment. ... Asynchronous Transfer Mode, or ATM for short, is a cell relay network protocol which encodes data traffic into small fixed sized (53 byte; 48 bytes of data and 5 bytes of header information) cells instead of variable sized packets as in packet-switched networks (such as the Internet Protocol or...


The latest standardisation efforts (G.shdsl.bis) tend to allow for flexibly changing the amount of bandwidth dedicated to each transport unit to provide 'dynamic rate repartitioning' of bandwidth demands during the uptime of the interface and optionally provides for 'extended data rates' by using a different modulation method (32-TCPAM instead of 16-TCPAM). Also a new payload type is introduced: packet based, e.g. to allow for Ethernet-frames to be transported natively (currently, they may only be framed in ATM or T1/E1/...). Bandwidth is a measure of frequency range. ... Modulation is the process of varying a carrier signal, typically a sinusoidal signal, in order to use that signal to convey information. ... Ethernet is a frame-based computer networking technology for local area networks (LANs). ...


In Europe a variant of G.SHDSL was standarized by ETSI using the name 'SDSL'. This ETSI variant is not compatible with the ITU-T G.shdsl standardized regional variant for Europe and must not be confused with the usage of the term 'SDSL' in North America. Europe forms the westernmost part of Eurasia. ... The European Telecommunications Standards Institute (ETSI) is a standardization organization of the telecommunications industry (equipment makers and network operators) in Europe, with worldwide projection. ... The ITU Telecommunication Standardization Sector (ITU-T) coordinates standards for telecommunications on behalf of the International Telecommunication Union (ITU) and is based in Geneva, Switzerland. ... Symmetric Digital Subscriber Line (SDSL) is a Digital Subscriber Line (DSL) variant with E1-like data rates (72 to 2320 kbit/s). ...



 
 

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