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A passive optical network (PON) is a network architecture that brings fiber cabling and signals to the home using a point-to-multipoint scheme that enables a single optical fiber to serve multiple premises.

An innovative technology for PON implementation, Gigabit Passive Optical Network (GPON) provides unprecedented bandwidth (up to 2.5 Gbps downstream rate, shared by up to 128 premises), and a greater distance from a central office (20 to 40 kilometers, as opposed to 4~5 kilometer for DSL), allowing service providers to enable bandwidth-intensive applications and establish a long-term strategic position in the broadband market.

GPON utilizes point-to-multipoint topology. A passive fiber splitter is used to split the fiber to multiple premises, thus reducing the amount of fiber and central office equipment required compared with point-to-point architectures. The passive nature of GPON eliminates the use of electricity, making it possible to install the splitter in a place where power is not easy to acquire. It is also more energy efficient.

GPON offers efficient packaging of user traffic, with frame segmentation allowing higher quality of service (QoS) for delay-sensitive voice and video communications traffic.

Edge Switch vs. Passive Fiber Splitter

The G-PON, the emerging FTTP technology around world, maximizes the economical efficiency of optical feeders, and provides scalable split ratio according to service requirements and subscriber density. Also it supports 2.5 gigabit rates under each PON interface. Using the multi-service adaptation concepts, the G-PON technology becomes a cost-effective alternative for rigorous quality of service and mass deployment. Lenoras G-PON solution powers true broadband access at 2.5 gigabit per second speeds while maximizing coverage over optical access network.




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