Abstract
A Gigabit Ethernet passive optical network (GE-PON)
The GE-PON includes an optical line terminal (OLT), a plurality of optical couplers, and a plurality of optical network units (ONUs). The OLT sets up an active page link and a standby page link in response to a registration request message received over an optical cable. Each of the ONUs is doubly connected with the OLT via the optical cable and is adapted to transmit the registration request message to the OLT, form the active page link with the OLT via the optical cable if it receives an active registration message transmitted from the OLT in response to the registration request message, and form the standby page link with the OLT via the optical cable if it receives a standby message from the OLT. The optical couplers are disposed between the OLT and each of the ONUs to doubly interconnect them via different optical cables

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GEPON is a Gigabit EPON. GEPON system is designed for telecommunication use. GEPON devices are fully compliant to IEEE802.3ah.This series products features high integration, flexible application, easy management, as well as providing QoS function. The fiber network speed can reach up to 1.25Gb/s and each EPON OLT (Optical Line Terminal) system can distribute into 32 remote ONU (Optical Network Unit) to build up the fiber passive network by a max 32 way optical splitter with the advantage of big capacity of data transmission, high security, flexibility of buildup network, mainly applies for FTTH (Fiber To The Home) projects, which can access to IP telephone, Broadband data and IPTV

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for more see
http://intelnetwork/connectivity/resources/doc_library/white_papers/pro10gbe_lr_sa_wp.pdf
http://springerlinkcontent/11717772v354k604/

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http://cnri.reston.va.us/gigafr/sections1-3-02.htm

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