Method for detecting clock out-of-lock of line interface disk of SDH device
A technology of SDH equipment and line interface, applied in the direction of digital transmission system, electrical components, transmission system, etc., can solve problems such as no solution, achieve the effect of reducing workload, improving performance, and requiring less resources
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[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0027] When the SDH equipment sends and receives data frames according to the equipment clock signal and the equipment framing signal, the pulse period of the equipment clock signal (hereinafter referred to as the clock signal) usually determines the bit width of each bit in the data frame, and the equipment framing signal ( Hereinafter referred to as fixed frame signal) is used to identify the first bit of the first byte of each data frame, that is to say, the frequency of the clock signal is the data frequency, and the frequency of the fixed frame signal is the frame frequency. Therefore, the present invention will at first set up a data channel for monitoring between the clock disk and the interface disk, and the clock disk is based on the device frame signal (the frequency of the device frame signal and the device clock signal is different, and the frequen...
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