Design And Implementation Of Metro Multi-Service Transmission Platform

With a rising demand for data service, modern telecommunication is moving its emphasis from traditional narrow-band service (e.g. voice transmission) to broad-band service (multi-service, high speed). Connecting Access Network and Core Network, metropolitan area network (MAN) is becoming more and more important. However, the development of MAN is facing challenges, such as complex service, disproportion source configuration, and so on. Therefore, multi-service and sourcing management will be the trend in the development of metro transmission equipment.This paper proposed a design of the metro multi-service transmission platform, including system structure, hardware implementation, and network management. First, according to the required features of MAN, the system structure of the platform is given. Secondly, the system is divided into several sub-modules by function, and a detailed research which realized each sub-module is made, including schematic design, PCB development, signal integrity, etc. Considering the requirement on security and reliability, a framework design about electro magnetic compatibility and thermal system is also given. Then the structure and application of the system's network management is introduced. Finally, the further research direction of metro multi-service transmission system is suggested.As a system solution, the platform proposed in this paper not only offers multi-protocol and multi-rate service, but also integrates other functions to improve the reliability, such as optical routing protection, optical amplify, dispersion compensation, etc. The users can customize the configuration according to their requirement also. And the system design also allows easy updating to fit new service in the future. In conclusion, this system offers a unified platform, which can transmit many different kinds of traffic, and can manage the source configuration as well. Upon that, we achieved an application of optimization , an efficient, low cost and high reliability transmission network.