ADTRAN 1202060L2-1, User Manual

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Chapter 7. Test Menu
61202060L2-1 TSU LT User Manual 7-5
functioning properly by verifying that no errors are being
counted.
INSERT 511 ERRORS
When running a 511 pattern test, press the
Enter
key to insert
an error into the 511 pattern.
Run Self-test
This menu selection is used to execute an internal self-test.
This is the same self-test that is performed automatically at
power up. The results of the self-tests are displayed in the
LCD. Upon invoking the command the LCD displays
INITIALIZING
and test failures are displayed in the LCD
window (see Figure 7-4). To initialize a self test, proceed
with the following steps:
Step Action
1 RAM tests; EPROM checksum
2 On board data path; sending a known test pattern
through an on-board loop
3 Front panel LED verification
4 Phase lock loop verify
If a failure is detected, note the failure number and contact
ADTRAN Technical Support.
Executing self-test disrupts normal data flow and prevents remote
communication until the self-test is completed (approximately five
seconds)