The SDH Analog Simulation Platform Design And Realization Bases On C/S Structure

SDH(Synchronous Digital Hierarchy)technology has been widely applied in the building of modem communication network since its advent. It occupies a pivotal position in the development of electric-power communication system. The electric-power communication network established bases on SDH technology burdens the basic communication services transmission service including voice, image, video signal,etc. Even as the important service of power distribution, scheduling, etc. should be transported through the power communication systems.SDH NMS(network management system) provides a unified platform for NE(network element) management and network planning.SDH NE equipment and NMS combine to form a complete SDH technology system. As the development and improvement of SDH, the whole power communication systems become more and more complex. This put forward higher demands for network maintenance and management personnel’s theoretical level and practical engineering experience.This paper aims to build SDH analog network simulation learning platform for relevant staff of electric-power communication system, the construction of a virtual network elements and analog network management system that provides real SDH hardware common functions. Simulation platform designed with C/S structure and developed using object-oriented technology. We used Qt to develop a client interface with good user experience, completed modeling of SDH logic function module, Simulation of hardware single board, assembling of virtual NE equipment. completed the design of the various subsystems including NE management, user management, alarm management and database system. In addition, We simulated the SDH clock working process and designed the Four fiber bidirectional multiplex section protection switching ring.