The Process For SDSL Hardware And Software

At present, the development of telecommunications technology is changed with each passing day, and the various new product of technology constantly appears in large numbers. As the public telephone net, his speed of development also is very astonishing. But owing to the now available structure of public telephone net at present, such as the raw and processed material of copper hawser reduces gradually, his price is more and more expansive, and result in the cost of providing service increased. The bandwidth of the copper in addition hawser itself is limited, and placed restrictions on many media need to access the broad width network: like videophone, large data transmitting, videotext etc.. Moreover the questions such as the laying speed of copper hawser is slow and period is long make that" final one kilometer " of between the Exchanger and user terminal has become restricting his follow-on bottle of neck question. Therefore, how to solve the question of various media-accessing network quickly becomes the most arousing popular interest research subject now.The technology of DSL (Digital Subscriber Lines) arises at the hvstoric moment under this kind of circumstances. The benefit of using DSL need not expansive promotion of line of telephone but can greatly increase the transmission speed of ordinary copper thread. The DSL's technology at present has many kinds, among which the SDSL is quick speed, and the upstream is identical as downstream speed, and especially is fit for in up and down volume of flow average person user.This text chiefly is directed against following several questions, and putting forward the settlement method of me, giving out the realization course of myself, makes linecard's function fine, and completely fit the standard requirement that was put forward.1. Simple introduce the XDSL accessing network technology based on the copper thread, and has carried on the more detailed introduction to SDSL's technology.2. Carries on the design analysis of hardware to SDSL, and to the entire frame of hardware, particularly did the comparatively detailed analysis as for his CPU.3. To SDSL the software realizes that the course has been in progress the analysis, to MAC layer the realization course has carried on the inquirement gone deep into.4. This text has been given out concrete algorithm of MAC's layer through of the analysis of the agreement to communicates, and according to this algorithm, have been in progress imitating simulation, thus conclusion is reached.This SDSL system is one part of MixLink6000's series, and the whole system is one perfect access network, and can realize that many kinds of methods access network based on the copper thread.