TAILIEUCHUNG - PONy Express

Facing the prospect of delivering bundled services that are nearly as complex as the subscribers who demand them, today’s service providers require an evolved network that can bring more bandwidth to more places. The combination of network technologies that can increase bandwidth and connectivity solutions that can ensure optimum reliability and improve service quality is essential in meeting the growing demands by business and residential customers. | PONy Express Cost-effective Optical Transport Solutions for Access Networks Cost-effective Optical Transport Solutions for Access Networks Facing the prospect of delivering bundled services that are nearly as complex as the subscribers who demand them today s service providers require an evolved network that can bring more bandwidth to more places. The combination of network technologies that can increase bandwidth and connectivity solutions that can ensure optimum reliability and improve service quality is essential in meeting the growing demands by business and residential customers. Overview Dense Wavelength Division Multiplexing-Passive Optical Network DWDM-PON is a general purpose and extremely efficient future-proof optical transport technology for use in access and metro transport networks. It enables highly efficient use of the outside fiber plant by providing point-to-point optical connectivity to multiple remote locations through a single feeder fiber. Central Office PONy Express 16 XX Wireless FTTB Residential Passive Remote Node FTTN ENET VDSL FTTC Figure 1. DWDM-PON supports multiple services The architecture for a DWDM-PON illustrated in Figure 1 is a generalpurpose architecture that can serve multiple applications for business and residential customers. This functionality is possible because each end point is connected to the central office through a dedicated bidirectional optical channel. This virtual point-to-point PON architecture enables large guaranteed bandwidths bit rate independency protocol transparency seamless upgradeability high QoS and excellent security and privacy. Cost-effective Optical Transport Solutions for Access Networks ADC Optics Optimize DWDM for Transport and FTTx Networks Although DWDM is commonly used in the long haul and metro markets it has not made significant inroads into the access area. One reason for this is the requirement that each remote site requires a unique transceiver . a wavelength stabilized DFB laser .

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