Estudo da tecnologia de acesso sdhl

Estudo da Tecnologia de Acesso SHDSL
Jandira Ivetty Aspirante Fuacanangui
5º ano, Grupo 5, Manhã
Universidade Metodista, Faculdade de Engenharia
Curso de Engenharia industrial e Sistemas Eléctricos
Trabalho prático da disciplina de Sistemas e Redes de Telecomunicações
Professor: Gustavo Sebastião
Luanda, Angola, Junho de 2012 Abstract SHDSL (ITU G.991.2 Rec) represents the best of several symmetric DSL technologies that were combined in a single industry standard providing rate range adjustment, larger, spectral compatibility, low power and application flexibility. SHDSL (Symmetric High Speed Digital Subscriber Line) is emerging as the access technology of choice for high-speed symmetric service offerings by service providers for businesses and Small Office Home Office (SOHO) customers. The technology is very well suited for high-speed symmetrical data, digital voice transmission, and real-time video conferencing. Since the various services are handled in the digital domain, bandwidth may be dynamically allocated among voice, video and data. By supporting a variety of line rates and load configurations, SHDSL enables applications of various services to be customized to meet the needs of small, medium office environments, and at home. It is expected to become the most common solution for symmetric access by major service providers worldwide. It is expected to become the most common solution for symmetric access by major service providers worldwide.

Objectivo geral da tecnologia SHDSL
– Acesso por um único par de cobre existente no lacete local
– Melhoria das técnicas utilizadas em HDSL no sentido de permitir maior alcance
– Suporte de modos circuito e pacote
– Débito configurável de acordo com os requisitos do utilizador

1.Introdução A tecnologia Single-Pair High-Speed Digital Subscriber Line (SHDSL) foi especificada pelo ITU-T na
Recomendação G.991.2 [I2], sendo também conhecida por G.SHDSL (Cisco) com a designação