Self Test; Test Purpose; Initiating; Interpreting Test Results - ADTRAN DSU III AR User Manual

Chapter 11. Testing and Troubleshooting

Self Test

The S
be performed at any time and is recommended if there is any
question about the DSU's health.

Test Purpose

To determine if the DSU is functioning properly.

Initiating

Follow the menu path outlined in Figure 11-15 to initiate a test
using a test pattern.

Interpreting Test Results

Once S
system runs the self test. A pass or fail status will be displayed on
the LCD along with a checksum indicating the current firmware
revision.
11-22
T verifies current operation of the DSU III AR. It can
ELF EST
1=LOCAL UNIT
2=TEST
2=REMOTE UNIT
T is activated, the LEDs cycle on and off as the
ELF EST
DSU III AR User Manual
1=DTE & LOOP (LL)
2=LOOP ONLY (RT)
3=DTE ONLY
4=DTE WITH TP
5=TEST PATTERN
6=SELF TEST
Figure 11-15. Initiating a Self Test
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