An e1 signal acquisition device

Abstract

The invention discloses E1 signal acquiring equipment. The E1 signal acquiring equipment comprises a bus, a service acquiring module, an output Ethernet port, at least one E1 signal interface, a corresponding code rate adjusting cache and a code rate adjusting control module, wherein the E1 signal interface is used for receiving an E1 signal and transmitting byte data corresponding to the E1 signal to the corresponding code rate adjusting cache; the code rate adjusting control module is used for outputting a control signal according to the cache region residual capacity of the code rate adjusting cache; the code rate adjusting cache is used for caching the byte data transmitted by the E1 signal interface, and adjusting the clock frequency of the byte data according to a preset clock signal, and outputting the byte data to the bus according to the control signal output by the code rate adjusting control module; and the service acquiring module is used for receiving and processing the byte data, and outputting the data to the output Ethernet port. Through adoption of the E1 signal acquiring equipment, clock non-synchronization of an accessed E1 signal is permitted, and the phenomenaof error code and packet loss are avoided.

Description

technical field [0001] The embodiment of the present invention relates to the field of communication networks, and in particular to an E1 signal acquisition device. Background technique [0002] In the prior art, an E1 signal collection device suitable for GSM-R networks is used to collect E1 signals and output them in different service types. At present, the E1 signal acquisition equipment used in the GSM-R network interface detection project adopts the bus mode and requires the clock synchronization of all connected E1 signals. However, in the actual communication network, it is difficult for each output device to output clock-synchronized E1 signals. However, if the clocks are not synchronized, the E1 signal will slip codes, resulting in code errors and packet loss failures in the processing module connected to the E1 signal output. Contents of the invention [0003] The present invention provides an E1 signal acquisition device to realize that the clock of the E1 sign...

AI Technical Summary

Problems solved by technology

At present, the E1 signal acquisition equipment used in the GSM-R network interface detection project adopts the bus mode, which requires the clock synchronization of all connected E1 signals. However, in the actual communication network, it is difficult for each output device to output clock-synchronized E1 signals.

And if the clock is not synchronized, the E1 signal will slip code, resulting in error code and packet loss in the processing module connected to the E1 signal output

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