{"id":2226,"date":"2016-09-15T16:00:30","date_gmt":"2016-09-15T16:00:30","guid":{"rendered":"https:\/\/www.tarluz.com\/?p=2226"},"modified":"2018-02-24T05:43:39","modified_gmt":"2018-02-24T05:43:39","slug":"xg-pon1-de-proxima-geracao","status":"publish","type":"post","link":"https:\/\/www.tarluz.com\/ar\/ftth\/xg-pon1-de-proxima-geracao\/","title":{"rendered":"XG-PON1 de Pr\u00f3xima Gera\u00e7\u00e3o"},"content":{"rendered":"<p style=\"text-align: justify;\">A tecnologia XG-PON1 disponibiliza d\u00e9bitos de 10Gbps downstream, combinados com d\u00e9bitos de 2,5 Gbps upstream. Herdou a formata\u00e7\u00e3o da trama e a camada de controlo da GPON, disponibilizando todo o tipo de servi\u00e7os a maiores d\u00e9bitos e com graus de splitagem superiores. Isto adiciona mais funcionalidades e maiores d\u00e9bitos \u00e0s redes de acesso \u00f3tico, sem aumentar a complexidade. Para que as tecnologias GPON e XG-PON coexistam na mesma rede \u00e9 necess\u00e1rio adicionar um acoplador \u00f3tico localizado na esta\u00e7\u00e3o central. Este componente foi especificado como WDM1r na norma G.984.5 do ITU-T. Guiados pelo mercado dos componentes \u00f3ticos de 10G e pelas bandas dispon\u00edveis que asseguram a compatibilidade com o legado, o FSAN selecionou os comprimentos de onda para downstream de 1575 a 1580 nm e para upstream de 1260 a 1280nm.<\/p>\n<p style=\"text-align: justify;\">Uma potencial barreira para a implanta\u00e7\u00e3o de GPON e XG-PON1 na mesma infra-estrutura \u00f3tica passiva \u00e9 a exist\u00eancia (ou inexist\u00eancia) de filtros de bloqueio dos comprimentos de onda nos ONTs instalados no cliente. A maioria dos ONTs GPON modernos t\u00eam um filtro integrado para eliminar a interfer\u00eancia de comprimentos de onda XG-PON1. No entanto, os ONTs mais antigos podem n\u00e3o ter este filtro. Os operadores com deployments mais antigos em que os ONTs n\u00e3o possuem os filtros, ter\u00e3o de instalar filtros externos junto dos ONT de modo a garantir a coexist\u00eancia das tecnologias GPON e XG-PON1.<\/p>\n<p style=\"text-align: justify;\">A classe B + GPON define um power budget \u00f3tico de 28dB. Com a adi\u00e7\u00e3o do combinador WDM1r, uma ligeira perda adicional \u00e9 adicionada ao power budget \u00f3tico XG-PON1, resultando em um budget equivalente de 29dB. Al\u00e9m disso, XG-PON1 especifica 31, 33 e 35dB de power budgets \u00f3ticos opcionais.<\/p>\n<p style=\"text-align: justify;\">Relativamente \u00e0 configura\u00e7\u00e3o, opera\u00e7\u00e3o e manuten\u00e7\u00e3o, o OMCI gen\u00e9rico (Optical network unit management and control interface specification ITU-T G.988) \u00e9 utilizado tanto no GPON como no XGPON1 e tamb\u00e9m NG-PON2<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A tecnologia XG-PON1 disponibiliza d\u00e9bitos de 10Gbps downstream, combinados com d\u00e9bitos de 2,5 Gbps upstream. Herdou a formata\u00e7\u00e3o da trama e a camada de controlo da GPON, disponibilizando todo o tipo de servi\u00e7os a maiores d\u00e9bitos e com graus de splitagem superiores. Isto adiciona mais funcionalidades e maiores d\u00e9bitos \u00e0s redes de acesso \u00f3tico, sem [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1703,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[25],"tags":[],"class_list":["post-2226","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ftth"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.3 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>XG-PON1 de Pr\u00f3xima Gera\u00e7\u00e3o - TARLUZ - FIBER OPTIC SUPPLIERS<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tarluz.com\/ar\/ftth\/xg-pon1-de-proxima-geracao\/\" \/>\n<meta property=\"og:locale\" content=\"ar_AR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"XG-PON1 de Pr\u00f3xima Gera\u00e7\u00e3o\" \/>\n<meta property=\"og:description\" content=\"A tecnologia XG-PON1 disponibiliza d\u00e9bitos de 10Gbps downstream, combinados com d\u00e9bitos de 2,5 Gbps upstream. 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