ADTRAN DSU III ARdc User Manual page 97

After selecting Remote Unit from the menu, the following prompt is dis-
played for entering the address for the remote unit:
Use the number keys to type the address of the remote DSU, then press
Enter. The test pattern selections are displayed. After a test pattern is
selected, the system briefly displays Please Wait.
Test Results
If the test is successful the status menu is displayed. If not, Unable to
Execute Test is displayed.
Interpreting Test Results
If the unit is functioning properly, the display should show:
TST ERR = 00
61200270L1-1
Chapter 11. Testing and Troubleshooting
ENTER TEST UNIT
Address:XX
DSU III ARdc User Manual 11-21