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Operation and maintenance of clock distribution networks having redundancy
Operation and maintenance of clock distribution networks having redundancy
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机译:具有冗余的时钟分配网络的操作和维护
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摘要
In a network, such as a large telecommunication switch, intended for the processing of information in different stations and for transmitting information between the stations, circuits are provided which generate independently composite clock signals containing both a clocking rate and a frame synchronizing rate. These clock signals are transmitted on three different transmission lines in parallel and independently to a station, where some kind of information processing is made in redundant planes. In the station all incoming clock signals are fed to each one of three independently operating selector units in which a choice of a clock signal is made for obtaining a clock signal to be used in the three redundant planes arranged in parallel to each other and operating independently of each other, in the station.
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