7996 SHDSL NTU User’s Guide6.3.2 SHDSL BER TestSelect Main Menu> Test & Loopback Status> SHDSL BER Test to enter the SHDSL BERtest screen. The screen is shown in Figure 6-18. The fields in the screen are described below: Test Period: enter the time for testing. (00:00:00 specifies that the test will be continuous.) Test Pattern: 2047 and 2^15-1 patterns are available for the test. Normal means there is nopattern sent. Test Switch: Use the Up/Down key to move the cursor to this field and select Start toperform the test.To perform the BER Test, you have to select a test pattern in the Test Pattern field first. Thenmove the cursor to Start in the Test Switch field and press Enter to start the test.After performing a test, the test result will appear on the screen immediately. The test resultsinclude the statistics of Elapsed seconds, Bit Errors and Bit Error Ratio. Press the E key to stopthe test, press 1–7 to set the rate for Error Insertion (where 1 means the rate is 10E-1, 2 meansthe rate is 10E-2, and so on), or press 0 to stop the error insertion.During the test, the system will refresh the screen once per second.Figure 6-18 SHDSL BER Test Screen7996-A2-GB21-00 September 2004 35
