EPON Network Accwss In The Area Of Application

Must along with the Internet swift and violent development, the network user grow day after day to the network band width demand.In order to satisfy the band width the demand, the communications network branch part has already had the huge change, but continuously changed the few tradition access network already to become in the entire network the bottleneck, the request access network can provide the multi-services the QoS guarantee, the multi-service segregation of security, the multicast service control, the multi-service fine refinement operation, the multi-service reliable service.The present paper through conducts the analysis research to each kind of access network technology, unifies the PON technology the characteristic superiority, proposed the use based on the ethernet passive light network (EPON) technology, realizes the FTTB+ multi-service turning on realization pronunciation and data turning on, after uses this technical application, not only may promote the wide band service to provide ability greatly, satisfies the people to the pronunciation, the data, the video frequency three network fusion service diverse demand, causes these richly colorful new services to open access enters the common hundred common family names.Through and so on several kind of main technologies carries on the comparison with the point-to-point system in the cost, proposed using the EPON technology develops certain scale when the service, its superiority can display, in'the investment suitable situation, EPON can provide the more service connection, a higher band width and the band width use factor.The EPON system playing a match end resources take very few, the modular degree is high, the system initial period invests lowly, the expansion is easy. the investment rate of return is high.Through and has the problem to the existing network condition the analysis, as well as optical fiber which proposed after the conformity new link to household plan, impelled the access network transformation, but EPON took one kind of maturer turning on technology becomes the newly built plot indubitably the best choice.Through to defends the security and the flexibility carries on the analysis, compares in the active transmission guard ring each transmission node all to need to establish a special engine room, each set of equipment all need to protect, has the corresponding power equipment, proposed uses the passive guard ring the EPON equipment not to need to rent the special engine room and the power source, because does not have the electronic part, therefore easy to lay down, maintains conveniently quickly.Through promotes and so on the aspects to the dilatancy to carry on the analysis, compares the active equipment the dilatancy to need to increase the bureau end and the subscriber's premises active equipment and the board card, the corresponding power equipment and the optical cable, the cable line and so on. Proposed thus uses the EPON system the network to promote in the dilatancy only must increase the bureau to carry OLT the PON card as well as the subscriber's premises ONU equipment may realize promotes finally forms the very many EPON network.Through obtains to several kind of turning on way key technologies comparison and in view of the open sea scenery plot client base analysis, uses EPON to take the plot the turning on way is completely feasible, not only realized "three nets to gather one", moreover caused it became the information superhighway "the last kilometer" the best transmission medium.