Voice Failures Analysis And Maintenance In Access Network

Access network locates between the local switch and the users, mainly to complete the user access to the core network tasks. With the expansion of telecommunic'ations networks, access network's role in telecommunications networks more and more important, access network troubleshooting is a particularly important part. Access network computer room environmental conditions restrict their room to improve. The current conditions of many rural access network is very simple room, with some rural power grid instability, has led to excessive'discharge of battery resulting in reduction of its useful life, rectifiers are often burned and so on. In summers, the room temperature is often so high that leads to instability in the access network, manifested as failure rate, high rate of bad panels. Address barriers to these devices to improve the efficiency of repair barrier is particularly important.Access network equipment for problems, this thesis used the access network and transmission equipment, voice equipment failure phenomenon, the different barriers to access network devices into the user class and system class research. Modules for access network equipment, respectively, voice access equipment, access network transmission equipment, power equipment, access network analysis to study the causes of failure, the corresponding processing method, and the fault diagnosis and location and treatment, reduce the frequency and the access network failure took to improve the efficiency of repair barrier. Finally, a number of typical faults in the access network, a case study.This thesis classified all kinds of obstacles in the access network, and summarized the general methods in fault management, which can help network maintainers to quickly locate failures and solve the problems.