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发明授权
CN101193021B 数字用户线路接入系统、方法、用户板及业务处理单元 有权

数字用户线路接入系统、方法、用户板及业务处理单元
摘要：
本发明公开了一种数字用户线路接入系统，该系统包括：至少一个业务处理单元、至少一个与业务处理单元相连的用户板、以及IP上行接口，所述用户板与相连的业务处理单元进行业务数据流交互，并对交互的业务数据流进行串并转换；所述业务处理单元用于对接收到的业务数据流进行业务处理，并将处理后的上行业务数据流通过IP上行接口传输给上行设备，将下行业务数据流传输给相连的用户板。本发明同时公开了一种数字用户线路接入方法、一种用户板以及一种业务处理单元。利用本发明提供的系统、方法、用户板及业务处理单元，可以降低系统的制作和研发成本，提高系统的性能和可扩展性。
摘要（英）：

The invention discloses a digital subscriber line (DSL) access system, and the system comprising at least one service processing unit, at least one user board connected to a service processing unit and an IP upstream interface. The user board performs service data flow interaction with the connected service processing unit, and performs serial-parallel conversion for the interacted service data flows; the service processing unit is used for performing service processing for the received service data flows, transmitting the processed upstream service data flows to an upstream device through the IP upstream interface, and then transmitting the downstream service data flows to the connected user board. The invention simultaneously discloses a DSL access method, a user board and a service processing unit. Utilizing the system, the method, the user board and the service processing unit provided by the invention, the cost of system building and research and development can be lowered , and system performance and scalability be improved.

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