Application Of Program-controlled Switches Based On Comprehensive Data Services

Nowadays, information has became very important stratagem resource. The transmitting way of information is network. The core of network is exchange .The development history of communication network after more than one hundred years has proved that , and will still prove that , the great progress of exchange technology will promote the evolution of communication network . In the face of coming of information age ,people enjoy the information society at the same time , people has encountered many challenges . It is very necessary to learn and master exchange technology for engineering person and college student. With switches upgrading, technology is constantly increasing, the trend for more control of program - controlled switches few fonts.This work mainly on several aspects. First in the history of the development of program - controlled switches, the exchange of technologies and trends on the basis of in-depth study of the program-controlled switches integrated data services system structure, operating principles and the main features of functional, in particular, with its digitized voice signals and hours multiplex these two key technologies for the exploration. By exploring these two technologies that greatly enhance the utilization of the transmission channels, and an environment conducive to the realization of the digital exchange and direct digital transmission link. Enhanced programmed exchange system with other types of communications networks (such as fax networks, packet switching or public data networks, computer LAN) interfaces, connectivity and network capacity. Taking into account the two switches Siemens D900 with a strong integrated functional and good stability, and occupy most of our markets, the integration of its hardware structure theory papers and powerful integrated functions of its comprehensive in-depth analysis and study. Anhui three mobile companies against the city in Maan Shan new one exchange bureaux specific request, providing a design plan and a detailed list of steps to open a new Board, the design in full compliance with the specific requirements of clients.With the development of the times, the gradual integration of ATM switching systems, wireless communications, access to technology, HDSL, ASDL, videoconferencing and other advanced technologies. It is conceivable that future exchange system would not only voice transmission system, but included a voice,text,picture high broadband transmission systems, and household word.