Qinhuangdao Cable TV Fiber To The Home Design And Research

Fiber Optic Home(FTTH)is an optical fiber connected to the home residential,this access mode is the optical access series in addition to FTTD outside the most close to the user's optical access network application mode.Based on the two aspects of cost,usage,operation and maintenance,the two-way transmission of HFC and optoelectronic hybrid technology is adopted.The TV signal fiber-optic home has become the hotspot technology of transmission mode conversion at this stage.This paper focuses on the fiber structure of Qinhuangdao Radio and Television Network Based on the design of the TV signal fiber to study,the specific research content is as follows:First,consider the cable television system model based on economic conditions,service scope,the number of sources to establish.Cable television system mode is divided into adjacent frequency transmission and non-adjacent frequency transmission.Cable TV system uses the adjacent frequency transmission mode,coaxial cable transmission system,to today's photoelectric hybrid and HFC transmission network,in the cable signal transmission structure design in the non-optimal program,FTTH network operation and maintenance on the overall requirements to achieve the FTTH network Equipment,line resource management,business release,fault handling,quality analysis,optimization and adjustment.FTTH network access equipment,the number of large number of terminal equipment,network maintenance and management work to be required network management system to provide intelligent network management capabilities and fiber line quality monitoring,diagnostic capabilities,can only effectively manage the system for the business to the end End management to provide the basis.Secondly,aiming at the problem of FTTH optical transmission structure and design scheme,the research is based on photoelectric hybrid.First of all,the trunk cable structure using the ring topology,the structure of the branch room and the central room base station location is relative.Through the ring network structure,the center of all sub-centers to provide a two-way link protection.And then through the cable link jump,all trunk ring network optical links are directly from the center of the sub-center,there is no signal relay,FTTH implementation needs further classification and comprehensive research.Finally,for the FTTH terminal research and development,the original cable transmission network can be transformed into a number of business data lines and TV signal lines.Fiber-to-the-home technology commonly used in technology is a somewhat point-to-point topology,multi-point-to-multipoint passive optical network(P O N).PON technology solutions can reduce the amount of fiber and the number of optical transceivers,effectively reduce operating costs to achieve fiber-optic home transmission.