Chapter 7. Test Menu
7-6 ESU 120e User Manual 61200420L1-1
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 interfac es 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. Upo n invoking
the command, the LCD displays System Self-Test and the Test LEDs
are illuminated. Test failures are displayed in the LCD window.