Hfc Network

refrigerating plants and the CO2 emitted in generating the energy required to operate these plants. CFC emissions, and to a lesser extent HCFC emissions, exert ozone-depleting effects.These two refrigerant families also exert globalwarming effects. HFCs were developed in order to replace CFCs and HCFCs and have no ozone-depleting potential. However, they also have direct global-warming effects.Via the Montreal Protocol that was adopted in 1987, 177 countries (as of 31 July…

brasileiro. Palavras-chave: Redes Móveis de Comunicação, acesso a banda-larga, WiMAX. ii Abstract The growing need for a quick access to information anywhere has generated a great demand for wireless networks services. Nowadays there are two standards which bear wireless network: WiFi (Wireless Fidelity, IEEE 802.11) and WiMAX (Worldwide Interoperability for Microwave Access, IEEE 802.16). The WiMAX standard has been more advantageous whereas it covers a 20 km area and can…

Concentrações atmosféricas médias dos principais GEE Figure 2. Global averages of the concentrations of the major, well-mixed, long-lived greenhouse gases - carbon dioxide, methane, nitrous oxide, CFC12 and CFC-11 from the NOAA global flask sampling network since the beginning of 1979. These gases account for about 96% of the direct radiative forcing by long-lived greenhouse gases since 1750. The remaining 4% is contributed by an assortment of 15 minor halogenated gases (see text).…

brasileiro. Palavras-chave: Redes Móveis de Comunicação, acesso a banda-larga, WiMAX. ii Abstract The growing need for a quick access to information anywhere has generated a great demand for wireless networks services. Nowadays there are two standards which bear wireless network: WiFi (Wireless Fidelity, IEEE 802.11) and WiMAX (Worldwide Interoperability for Microwave Access, IEEE 802.16). The WiMAX standard has been more advantageous whereas it covers a 20 km area and can…

conceito de NOC, segurança em Tecnologia da Informação. ABSTRACT Nowadays, with globalization, companies are expanding through the worldwide network of computers, the internet. This work will be exposed subjects as: network security, vulnerabilities, attack types, concept of NOC, companies related to network security and IT Keywords: network security, vulnerabilities, attack types, concept of NOC, security in Information technology SUMÁRIO 1 INTRODUÇÃO 09 1.2 Objetivo 11

Ethernet-PON FSAN: Full Service Access Network FTTB: Fiber to the Building FTTC: Fiber to the Curb FTTCab: Fiber to the Cabinet FTTH: Fiber to the Home GEM: GPON Encapsuling Method GPON: Gigabit-PON HDTV: High Definition Television HFC: Híbrida Fibra Coaxial LMDS: Local Multipoint Distribution System MAN: Metropolitan Area Network MMDS: Multichannel Multipoint Distribution Service MO: Magneto-óptica NG-PON: Next Generation Passive Optical Network NIC: Network Interface…

Palavras-chave: LAN. Rede de acesso. Topologia. Ética profissional. Abstract This is a project that was developed a plan for implementing a local area network (LAN) Mercadus requested by the company, the business of market research. This company will be opening a branch in the city of Campinas-SP and start its activities with 50 computers (hosts). This network has been designed with the possibility of expansion up to 15% within 03 years. Operators access to different Internet…

fio podem ser de dois tipos: LAN e WAN. [pic] As redes sem fio do tipo WAN ou WWAN (Wireless Wide Area Network) tem base principalmente nas redes de telefonia celular. Ela teve seu desenvolvimento, a princípio, próprio para a comunicação de voz, no entanto, agora, é possível também a transferência de dados. [pic] As redes sem fio do tipo LAN ou WLAN (Wireless Local Area Network) diferentemente da rede WAN, baseia-se na comunicação de equipamentos em áreas específicas como…

REDES HÍBRIDAS (HFC) ÍNDICE_____________________________________________________________________ Capítulo 1 – Introdução às redes HFC - Objetivos - Introdução - Sinais - Headend - Etapas do processo - Levantamento de campo - Levantamento de campo - Projeto da rede coaxial - Projeto óptico - Construção da rede coaxial - Lançamento de cabos ópticos e coaxiais - Splicing - Instalação de Fontes - Ativação do receptor óptico - Ativação do canal direto - Etapas do processo…

telefonar ao mesmo tempo: não pode estar “sempre on-line” ADSL: asymmetric digital subscriber line • Até 1 Mbps de upstream • Até 8 Mbps de downstream • © 2005 by Pearson Education 1 - 24 12 1 Acesso residencial: cable modems • HFC: híbrido fibra e coaxial • Assimétrico: até 30 Mbps upstream, 2 Mbps downstream Rede de cabo e fibra liga residências ao roteador do ISP • Acesso compartilhado das casas de um condomínio ou de um bairro • Deployment: disponível via…