Method for testing electric signal intercrossing function

Abstract

The invention provides a method for testing electrical signal cross function, the method comprises: step 1, setting the state of a device to be tested; step 2, collocating a space division cross module of the device to be tested, enabling the space division cross module to generate a test signal, collocating one or more than one channels of the space division cross module as input channels for receiving test signals; step 3, selecting output channels from one or more than one channels of the space division cross module, enabling transmission function of the output channel to transmit test signals; step 5, judging the state of test signals by a service receiving-transmitting module, according to the judgement result determining the link between the space division cross module and the service receiving-transmitting module is whether or not normal. Thereby, by adopting the invention, testing transmission channels of the service receiving-transmitting module and the cross module on the transmission system, having practical application cost.

Description

technical field [0001] The invention relates to the application of electrical signal crossover, and more particularly, to a method for testing the electrical signal crossover function. Background technique [0002] First explain several concepts involved in the present invention: [0003] Space-division unimpeded crossover: If a crossover functional unit includes m input signals and n output signals, i is a certain input signal (i=1..m), and j is another input signal (j=1..m, And j!=i), if i can output from any one or multiple channels in n channels (all output signals corresponding to i form a set a), and j can also output from any one or multiple channels in n channels ( All the output signals corresponding to j form a set b), as long as the intersection of a and b is empty, i and j cannot occupy one output channel at the same time, that is to say, one output channel can only correspond to one input channel, then The setup is there, and this crossover is unhindered. [...

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to overcome the lack of space-divided unobstructed cross-channel and peripheral circuit test equipment in the prior art, and the problem of cumbersome operation, and proposes a method for testing using the PRBS signal generated by the electrical cross-connect network module itself, so as to realize the test without testing In the case of an instrument, directly verify the functions of the business transceiver module and cross-module on the transmission system to improve test efficiency

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