Chapter 7. Test Menu

Run Self-Test

The self-test checks the integrity of the internal operation of the electronic components by performing memory tests and by sending and verifying data test patterns through all internal interfaces. Although actual user data cannot be passed during these tests, the self- test can be run with the network and DTE interfaces in place and will not disturb any external interface.

The memory portion of the self-test automatically executes upon power-up. A full self-test can be commanded from a front panel menu or from T-Watch PRO.

In addition to the specified self-tests, background tests are also run on various parts of the internal electronics. These run during nor- mal operation to confirm continued correct functioning.

This menu selection is used to execute a full internal self-test. The results of the self-tests are displayed in the LCD. Upon invoking the command, the LCD displays System Self-Test and the Test LEDs are illuminated. Test failures are displayed in the LCD window.

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ADTRAN ESU 120e user manual Run Self-Test