G.992.2 (original) (raw)
Universal Asymmetric Digital Subscriber Line (UADSL) ist eine US-amerikanische vereinfachte langsame DSL-Variante, die ohne Splitter auskommt.
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| dbo:abstract | Universal Asymmetric Digital Subscriber Line (UADSL) ist eine US-amerikanische vereinfachte langsame DSL-Variante, die ohne Splitter auskommt. (de) In telecommunications, ITU G.992.2 (better known as G.lite) is an ITU standard for ADSL using discrete multitone modulation. G.lite does not strictly require the use of DSL filters, but like all variants of ADSL generally functions better with splitters. G.lite is a modulation profile which can be selected on a DSLAM port by an ADSL provider and provides greater resistance to noise and tolerates longer loop lengths (DSLAM to customer distances) for a given bandwidth. Most ADSL modems and DSLAM ports support it, but it is not a typical default configuration. The transmission speed of G.lite (G.992.2) is 1.5 Mbit/s downstream and 512 kbit/s upstream. The G.lite specification was an accelerated ITU-T effort to drive interoperability among vendors and was facilitated by the Universal ADSL Working Group, or UAWG. The G.lite standardization effort took a total of 11 months from start to finish, setting a new record for ANY standard effort within the ITU-T. The previous record had been the V.90 specification for analog modems, which took 18 months to complete. The UAWG consisted of three sets of members: Promoters, Supporters and Adopters. Intel, Compaq and Microsoft were able to rally the support of all of the US RBOCs and five of the largest international carriers (NTT, British Telecom, France Telecom, Deutsche Telekom, and Singapore Telecom), collectively representing the Promoters, to drive the major communications equipment manufacturers (the Supporters) to demonstrate interoperability of products based on the G.lite specification at SUPERCOMM in June 1999. Adopters represented the majority of the remaining companies in the communications industry that were committed to supporting the new technology specification. (en) La recommandation UIT-T G.992.2 définit le mode de fonctionnement et d'interaction des équipements de communication ADSL de première génération qui peuvent être mis en œuvre sur une installation téléphonique d'abonné sans nécessiter la pose d'un filtre ADSL. En contrepartie, ces équipements présentent un niveau de performance inférieur à celui d'un équipement ADSL "classique". (fr) Технология ADSL G.lite, стандарт ITU G.992.2 — вариант ADSL, не требующий установки сплиттера на стороне пользователя, хотя и работает лучше с ним, как и любая другая ADSL-технология. G.lite более устойчив к помехам и меньше страдает от длины соединительной линии при той же пропускной способности. Однако максимальная пропускная способность заметно ниже, чем G.dmt (G.992.1), и составляет до 1,5 Мбит/с от сети к пользователю, и до 512 Кбит/с от пользователя к сети. (ru) Universal Asymmetric Digital Subscriber Line (UADSL, UDSL ou ADSL Lite, padrão ITU: G.992.2) é uma variação da tecnologia Digital Subscriber Line que fornece um meio de transmissão digital de dados, aproveitando a própria rede de telefonia que chega na residência. UADSL, desenvolvido no final dos anos 90 por um consórcio de indústrias de telecomunicação, o grupo Universal ADSL Working Group (que acabou de existir), e baseado no formato Asymmetric Digital Subscriber Line, é usada só nos Estados Unidos da América. Sem necessidade de instalar um DSL-Filter, que possa facilitar a manutenção, a tecnologia está sendo ultrapassada por outros formatos da Digital Subscriber Line devido a problemas técnicos (interferências, alto índice de erros na transmissão de dados etc.) (pt) |
| dbo:wikiPageExternalLink | http://www.itu.int/rec/T-REC-G.992.2/en https://www.itu.int/rec/T-REC-G.992.2 |
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| dbo:wikiPageWikiLink | dbc:Telecommunications-related_introductions_in_1999 dbr:List_of_interface_bit_rates dbr:DSL_filter dbc:Digital_subscriber_line dbc:ITU-T_G_Series_Recommendations dbc:ITU-T_recommendations dbr:G.992.1 dbr:G.992.3 dbr:DSLAM dbr:International_Telecommunication_Union dbr:Telecommunication dbr:Telecommunications dbr:Asymmetric_Digital_Subscriber_Line dbr:Discrete_multitone_modulation dbr:ITU-T dbr:ITU-T_Study_Group_15 |
| dbp:committee | dbr:ITU-T_Study_Group_15 |
| dbp:domain | dbr:Telecommunication |
| dbp:license | Freely available (en) |
| dbp:longName | Splitterless asymmetric digital subscriber line transceivers (en) |
| dbp:organization | dbr:ITU-T |
| dbp:relatedStandards | dbr:G.992.1 dbr:G.992.3 |
| dbp:status | In force (en) |
| dbp:title | G.992.2 (en) |
| dbp:version | (en) |
| dbp:versionDate | October 2003 (en) |
| dbp:website | https://www.itu.int/rec/T-REC-G.992.2 |
| dbp:wikiPageUsesTemplate | dbt:Infobox_technology_standard dbt:DSL_technologies dbt:ITU_standards |
| dbp:yearStarted | 1999 (xsd:integer) |
| dcterms:subject | dbc:Telecommunications-related_introductions_in_1999 dbc:Digital_subscriber_line dbc:ITU-T_G_Series_Recommendations dbc:ITU-T_recommendations |
| gold:hypernym | dbr:ITU |
| rdf:type | yago:Abstraction100002137 yago:Advice106671484 yago:Communication100033020 yago:Message106598915 yago:Proposal107162194 yago:Recommendation106671637 yago:WikicatITU-TRecommendations |
| rdfs:comment | Universal Asymmetric Digital Subscriber Line (UADSL) ist eine US-amerikanische vereinfachte langsame DSL-Variante, die ohne Splitter auskommt. (de) La recommandation UIT-T G.992.2 définit le mode de fonctionnement et d'interaction des équipements de communication ADSL de première génération qui peuvent être mis en œuvre sur une installation téléphonique d'abonné sans nécessiter la pose d'un filtre ADSL. En contrepartie, ces équipements présentent un niveau de performance inférieur à celui d'un équipement ADSL "classique". (fr) Технология ADSL G.lite, стандарт ITU G.992.2 — вариант ADSL, не требующий установки сплиттера на стороне пользователя, хотя и работает лучше с ним, как и любая другая ADSL-технология. G.lite более устойчив к помехам и меньше страдает от длины соединительной линии при той же пропускной способности. Однако максимальная пропускная способность заметно ниже, чем G.dmt (G.992.1), и составляет до 1,5 Мбит/с от сети к пользователю, и до 512 Кбит/с от пользователя к сети. (ru) In telecommunications, ITU G.992.2 (better known as G.lite) is an ITU standard for ADSL using discrete multitone modulation. G.lite does not strictly require the use of DSL filters, but like all variants of ADSL generally functions better with splitters. (en) Universal Asymmetric Digital Subscriber Line (UADSL, UDSL ou ADSL Lite, padrão ITU: G.992.2) é uma variação da tecnologia Digital Subscriber Line que fornece um meio de transmissão digital de dados, aproveitando a própria rede de telefonia que chega na residência. (pt) |
| rdfs:label | Universal Asymmetric Digital Subscriber Line (de) G.992.2 (en) G.992.2 (fr) UDSL (pt) ITU G.992.2 (ru) |
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