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Voice Feature Guide 01

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Line Matching Test

Line Matching Test

A line matching test is used to check wiring connectivity between the subscriber line and the main distribution frame (MDF), and check wiring sequence.

  • A line matching test may cause service interruption. Therefore, exercise caution when starting this test.
  • During a line matching test, do not perform any service operations on the board to be tested. If a service operation is needed for such a board, reset the board after the test completes so that services can be restored.


Previously, a line matching test was implemented for a single line under the cooperation between 2 deployment or maintenance engineers using a multimeter. This process is of low efficiency and high labor costs. Furthermore, subscriber lines are removed and inserted multiple times during the test, which harms the board and line connectors.

Now, a line matching test can be implemented by using the test tool CLT-Match and golden finger indicator board by only one engineer. Also, lines can be tested by groups. This process dramatically improves test efficiency and correctness. However, damages caused by subscriber line removal and insertion are unavoidable.

In an actual test, the software can substitute for the CLT-Match. Specifically, the software triggers a line matching test. Then, using together with the golden finger indicator board, subscriber lines do not need to be removed or inserted. This process improves test efficiency and protects the board and subscriber lines.


As shown in Figure 1-146, the red line indicates the route from the subscribe line to the MDF, which is tested in a line matching test for its wiring connectivity and sequence.

Figure 1-146 Procedure
  1. The deployment or maintenance engineer logs in to the device and runs the line-match-config command to configure parameters for a line matching test. In the configuration, the number of line matching test cycles, the blinking rate of the line matching test indicator, and the line matching test mode can be specified.
  2. The deployment or maintenance engineer inserts the golden finger indicator board into the equipment-side MDF module of the corresponding wiring module.
  3. The deployment or maintenance engineer runs the line-match-test command to start a line matching test. Only one board can be tested at a time.
  4. The deployment or maintenance engineer observes the indicator blinking status on the MDF side to determine whether wiring is correct.
    • If the indicator blinks green, the line connectivity is normal.
    • If the indicator blinks red, the line connectivity is abnormal and a manual check is required.
    • If the one-by-one test mode is set and indicators blink in the sequence of ports, wiring sequence is correct.
    • If the one-by-one test mode is set and indicators do not blink in the sequence of ports, wiring sequence is incorrect. This may be caused by shorted wires and a manual check is required.
Updated: 2019-02-22

Document ID: EDOC1100067358

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