Selftest - ADTRAN ATLAS 800 User Manual

Chapter 4. Using the Front Panel
» Selftest
»» Run Selftest
»» Show Results
4-10
Executes a system self-test, and the LCD displays the Pass or Fail when the
test is complete. Options include Run Selftest, Show Results, and Clear Re-
sults.
The Selftest option disrupts data flow.
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 . Se-
lect 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. An on-board processor 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.
Board-to-board interface test. Verifies the data path, clocks, and con-
5.
trol signals. A test pattern is sent from the controller through a loop-
back on all other boards and checked on the controller.
During a self-test, ATLAS_800 checks data integrity and verifies processor
control to each port. Each port is looped back and a data pattern is sent and
tested.
Displays the types of tests performed during a self-test, as well as the results
of the tests. Each item in the list displays either Passed or Failed . A RAM
test failure indicates a controller board problem. If a slot fails, the module in
the slot may have a problem.The following items display:
NVRAM
Non-volatile RAM
DSP RAM
Digital signal processor RAM
RTC RAM Real time clock RAM
TDM MAP TDM time slot mapping RAM
DRAM Dynamic program memory used for program execution
Slot 1—8
Data path test to individual modules
ATLAS 800 User Manual 61200180L1-1