ADTRAN ATLAS 800PLUS user manual Software Rev, Run Selftest

Chapter 4. Front Panel Operation and Menu Structure

Software Rev

This option displays the current software revision level loaded into the base unit controller. This information is required when requesting assistance from ADTRAN Technical Support or when updates are needed. Press Cancel to exit this option.

Selftest

Selftest executes a system self-test, and the LCD displays the Pass or Fail when the test is complete.

The Sefltest option disrupts data flow.

Run Selftest

This command initiates a self-test. When you select this option, the prompt Selftest, Are You Sure Y/N? displays. To initiate the self-test, select Y and press Enter. Select N and press Enter to cancel the self-test.

If you select Y and proceed with the self-test, the LCD displays the message Selftest in progress.... When the self-test is complete with no failures

detected, the OK LED illuminates and the LCD momentarily displays Self-Test Passed. If failures are detected, a list of failures displays in the LCD window.

The full self-test procedure consists of the following steps:

1.Board-level tests.

The Controller contains an on-board processor which executes a series of tests checking the circuitry on the board.

2.RAM tests; EPROM checksum.

3.TDM map tests.

4.On-board data path.

Sending a known test pattern through an on- board loop.

5.Board-to-board interface test.

A test pattern is sent from the controller through a loopback on all other boards and checked on the controller. This verifies the data path, clocks, and control signals.

During a self-test, ATLAS 800PLUS checks data integrity and verifies proces- sor control to each port. Each port is looped back and a data pattern is sent and tested.

61200226L1-1 ATLAS 800PLUS User Manual 4-7