With the development of communication technology, backbone chi dazzle network and local area network have made enormous development ralph lauren polo shirts. However, the access network which connects the subscribers and backbone network has become the bottleneck of the information highway. In the field of wired solutions, passive optical network (Lacoste Polo Shirts) has good market prospects because of its bandwith capacity. As a broadband access network with the purpose of achieving full service access, GPON has greater advantage in bandwith nike shox shoes capacity, security and manageability compared to other PON technologies. GPON has been considered as one of the best solution to the broadband access network.As the core module of GPON system oriented cheap wedding dresses 2010 users, the implementation technology and cost of ONU affect the affordability of users directly, and also affect the development and application prospects of GPON technology, so it is meaningful to study ONU system.First of all, this paper summarizes the status quo and development trends of broadband access network, introduces the development history of PON, then compares of three PON technologies and points out technical advantages and development prospects of GPON.
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