PROSPECTIVE OPERATION TECHNOLOGIES FOR FIBEROPTIC SUBSCRIBER LOOPS

The construction of an optical subscriber loop and its operation syste m will be one of the most important infrastructures for the informatio n society of the future. This paper presents a discussion of current a nd future service trends, the evolution of fiber-optic systems in the loop, and subscriber loop operation systems. Several operation technol ogies are also discussed which will enable the operation systems descr ibed in this paper to be constructed. Of these, the key technologies a re an operation system architecture with flexibility, software technol ogies based on object-oriented design and programming, and automatic o peration modules.