TAILIEUCHUNG - Dynamic Reconfiguration of Indoor Combination Networks Through the Use of Patch Panels

In terms of flexibility, the traditional combination networks found inside hubs and headends are quite rigid, making it difficult to change combination ratios. Adding radio-frequency patch panels to combination networks adds a high degree of flexibility and allows for different levels of combination without affecting network service. | Dynamic Reconfiguration of Indoor Combination Networks Through the Use of Patch Panels Executive Summary In terms of flexibility the traditional combination networks found inside hubs and headends are quite rigid making it difficult to change combination ratios. Adding radio-frequency patch panels to combination networks adds a high degree of flexibility and allows for different levels of combination without affecting network service. Issues in Traditional Configuration Networks Over the past few years cable operators have encountered an unexpected problem integrating high-speed data and integrated telephony services. Initially high-speed data and integrated telephony services were deployed using a design that assigned fixed ratios of combination between the number of homes and the controller inputs in hubs and headends. For example operators often assigned 1 000 homes to a DOCSIS upstream input for cable-modem service. As a result it s common to find a first splitting stage just after the optical receivers inside the hubs in an upstream network. Following the first splitting stage is a series of combination stages that group the return path of the optical nodes in ratios that vary according to the provided service. APPLICATION NOTE Using high-speed data as an example these stages could result the grouping of a signal coming from eight optical nodes into one CMTS upstream input. This creates a rigid ratio structure with fixed combiners and splitters that condition the service. A clear example can be seen in the following illustration where the number of cable-modem users has grown and the combination networks limits the number of users that can be served by the network. 1-952-938-8080 1-800-366-3891 Dynamic Reconfiguration of Indoor Combination Networks Through the Use of Patch Panels Alternative Through the Use of Radiofrequency Patch Panel 25 penetration 2000 homes in 4 optical nodes Initial Situation Dynamic Reconfiguration 2000 homes in 4 optical .

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