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Hardware function testing device of North American / European trunk line matching board
Hardware function testing device of North American / European trunk line matching board
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机译：北美/欧洲干线匹配板的硬件功能测试装置
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摘要
The present invention relates to an apparatus for testing a hardware function of an NA / CEPT trunk line matching board, and more particularly to an apparatus for testing an NA / CEPT trunk line matching board by measuring and confirming an output waveform of a PCM (Pulse Code Modulation) CEPT trunk line matching board to test whether there is any abnormality in the hardware function of the conventional NA / CEPT trunk line matching board. In order to check whether there is abnormality in the hardware function of the conventional NA / CEPT trunk line matching board, It is necessary to directly perform impedance matching while directly connecting the measuring instrument to each output terminal. However, the relay matrix circuit 30 according to the present invention and the main processor 32 for controlling the relay matrix circuit are provided to automatically measure the output waveform of the PCM link Confirm that the hardware function of the NA / CEPT trunk line matching board is automatically tested. By automatically processing the test, which has a low accuracy, with the time taken by the impedance matching and the human hand, the accuracy of the test value can be raised and the loss of manpower can be greatly reduced by saving time.
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