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With the telecom business continuously enriched , and the growing competition in the telecommunications market , the existing copper access mode can not meet the needs of the future to carry out high-speed broadband services . Consider rational use of copper resources , years of investment and construction hand to carry out \ability to support and enhance core competitiveness . Both how to choose, how the original network transformation and evolution , operators have to consider the problem . FTTH ( fiber to the home ) is the ultimate form of passive optical network (PON) access network development due to its simple , cheap , reliable network topology to achieve FTTH final solution . Text of participation in an end office renovation project in Jinan, China Unicom PSTN network program formulation , construction and implementation of the transformation of end office access layer contains both traditional switch AG , but also the use of EPON , GPON technology FTTB, FTTH way . NGN is the development direction of PSTN , PON is an important means to achieve the NGN access layer PON in all respects superior to traditional access methods , both EPON and GPON standard , according to their technical characteristics , practical application to play a different role . This paper first introduces the current mainstream FTTx technology , PON standard status quo , and a brief description of EPON , GPON implementation principle , key technology and technical advantages ; based on the analysis of different access methods , Jinan Unicom local network the transformation of the access layer transformation planning , and Weidong cell , Louvre mansion PON network specific design .
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