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Automatic testing method for modulating and demodulation unit and its testing system

A modem and automated testing technology, which is applied to transmission systems, instruments, and measuring electronics, can solve problems such as boring and cumbersome transmission performance testing, easy omissions, and omission problems, and achieve full and comprehensive testing, improved efficiency, and stable testing processes.

Inactive Publication Date: 2005-07-20
ZTE CORP
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the limited time, only a certain port in the DSLAM equipment user board can be carefully tested, and the possibility of missing problems is high
[0007] (2) Some problems can only appear after increasing the distance and maintaining it for a period of time, such as a broken link in a few hours
When testers use manual configuration, because the test is carried out continuously, it usually only lasts for a few minutes under a loop model, and such problems are easy to miss
[0008] (3) The transmission performance test is boring and cumbersome, and the repeatability is very strong. Especially in the mode selection test, it is necessary to repeat the transmission performance test more than ten times in a few days

Method used

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  • Automatic testing method for modulating and demodulation unit and its testing system
  • Automatic testing method for modulating and demodulation unit and its testing system
  • Automatic testing method for modulating and demodulation unit and its testing system

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Embodiment Construction

[0067] Such as figure 2 As shown, the networking construction method of the test system of the present invention can be as shown in the figure, including the modem 22 to be tested, the line simulator 23, and the digital subscriber line access module 24 connected to the test computer 21 respectively, and the line simulation The instrument 23 is also connected with the modem 22 and the digital subscriber line access module 24 respectively. The test computer 21 is used as the console of the whole test system to control and operate the test, and control the modem 22 and digital subscriber line access module 24 to automatically collect and save test data.

[0068] in such as figure 2 Under the test environment shown, running the test script written according to the test method of the present invention can automatically complete relevant tests and the collection and storage of test data. Next, we will use the DLS400 line meter as a line simulator to simulate a specific distance ...

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Abstract

The invention relates to modem automation testing method and testing system. The method includes the following steps that connecting the modem to the circuit simulator and the correlative testing device to form a testing environment and open the corresponding communication control port; controlling the circuit simulator and simulating the given distance and the noise environment; controlling the tested device to do testing operation and extract the performance testing result from it. The invention combines the circuit simulator, the operation of the DSLAM device and the testing data extracting to a automation script running to avoid great hand operation, realize the adding-distance adding-noise automation testing of the modem.

Description

technical field [0001] The invention relates to an automatic test method and a test system for the transmission performance of communication equipment, in particular to a test method and a test system for several indicators stipulated by national standards in the transmission performance test field of a modem (MODEM). Background technique [0002] According to YDT1055-2000 "Asymmetrical Digital Subscriber Line (ADSL) with Voice Separator" to test ADSL equipment is the current Chinese national standard and the industry standard of the communication industry. The performance test of ADSL equipment in this standard stipulates two types of line tests based on Europe and North America. Usually, the performance, signal-to-noise ratio and attenuation under 10 different loops and noise environments are tested. If impulse noise and voice are considered Interference, 18 kinds of loop and noise environments need to be tested. [0003] In fact, in this test, it is usually tested by man...

Claims

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Application Information

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IPC IPC(8): G01R31/00H04B17/391
Inventor 陈侃叶晓华黄付宗
Owner ZTE CORP
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