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Optical Communication Solution for Fiber Access Network

In recent years, the new technological revolution represented by the Internet is changing the traditional concept of telecommunications and architecture. As countries access network markets gradually open and the appearance of new business requirements, access network has become the focal point. The optical fiber access network is the development of a broadband access solution in the long run in the access network.


Fiber access network refers to an access network in which optical fiber is the transmission medium. Fiber optic access networks can be technically classified into two categories: Active Optical Network (AON) and Passive Optical Network (PON). The active optical network is composed of Optical Line Terminal (OLT), Optical Network Unit (ONU) and Optical Distribution Terminal (ODT). The local terminal devices and remote devices of the active optical network are connected by active optical transmission devices. Passive optical network refers to the optical distribution network between OLT and ONU, without any active electronic equipment.


GrenTech provides active GPON and EPON OLT optical transceiver and passive CWDM transceiver for fiber access network.



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