Frequency shift keying signal board test device and test method simulating practical service environment

Abstract

The invention discloses a frequency shift keying signal board test device and a test method simulating a practical service environment. The test device comprises a system bus and an SYN, a switch network, a switch host, an analogue user board and a two-line loop analogue board which are connected to the system bus, wherein the analogue user board is connected with the two-line loop analogue board through a user cable; and the system bus is connected with multiple frequency shift keying signal boards to be tested. The test device disclosed by the invention is a fixed switch architecture with the basic calling function; and by combining the test device and the test method, the practical service environment of the frequency shift keying signal board can be simulated perfectly, and the working state of the frequency shift keying signal board and the quality of the signal generated by each channel can be automatically and accurately tested.

Description

technical field [0001] The invention belongs to the technical field of telecommunication equipment testing, and relates to a testing of a frequency shift keying signal board, in particular to a testing device for a frequency shifting keying signal board and a testing method for simulating an actual use environment. Background technique [0002] The frequency shift keying signal is a modulation signal used in the calling number display (incoming caller number display) service in the fixed communication network. After the called telephone set rings for the first time, the switching master control system invokes the frequency shift keying signal The board generates related signals and transmits the signals to the user line at the same time. The signals contain the calling party's phone number, date, time, name and other information. The caller number display of the called telephone set receives this signal, obtains the information in it after decoding and displays it on the scr...

AI Technical Summary

Problems solved by technology

[0007] 1. Only the signal quality of the frequency shift keying signal board was tested, and the communication command between the frequency shift keying signal board and the switching host was not tested, so it was impossible to accurately determine the working status of the communication unit of each single board

[0008] 2. When testing each channel, it is not connected to the actual switching matrix, so it is impossible to accurately test the time delay of the frequency shift keying signal in the switching channel

[0009] 3. The test is not combined with the telephone call process, so it is impossible to test the cooperation between the frequency shift keying signal board and the actual telephone call

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