tailieunhanh - ADC Value-Added Modules

Designed to make the most of your fiber network, ADC’s FMT Drawers for MicroVAM modules add flexibility and functionality to the optical transport system. This versatile platform lays the foundation for the optical distribution frame of the future, enabling service providers to easily incorporate optical components into the network. | Next Gen NETWORKS Is Your Network Ready for GPON Is Your Network Ready for GPON Evolution to GPON GPON is a culmination of the best in BPON and EPON techniques. Most agree that eventually everything will move to IP voice over IP video over IP robust data applications like gaming video streaming MPEG3 downloads and quadruple play applications network appliances security video surveillance . The advantages of GPON are key in driving commitment by the large volume carriers to the GPON standard. As GPON moves to become the standard of choice for fiber-to-the-premise FTTP networks cost reductions and inter-operability will accelerate. The Full Service Access Network FSAN committee has been working on GPON since mid 2001 shortly after BPON ratification. The FSAN group was created by a group of service providers to facilitate the creation of suitable access network equipment standards hence reducing the price of affordable equipment. GPON is making it easier for PON networks to move to an all IP format where the external interfaces to the core are moving to an all gigabit ethernet network creating a movement away from the traditional ATM transport to a pure IP transport. GPON is IP-centric allowing the traditional services of voice and video yet acknowledging the strengths of the service provider to differentiate themselves on quality of service QoS . GPON continues to have a long reach that effectively eliminates active components in the access network with little or no significant changes to the physical architecture. Standards Bodies There are two standards bodies for the development of PON protocols. One is the International Telecommunications Union ITU . The ITU typically develops standards for the telecommunications industry. This body has developed standards for HDSL ADSL SS7 etc. All of the large carriers in the world belong to and support the ITU. The Institute of Electrical and Electronics Engineers Inc. IEEE is another standards group focused on the engineering