ADTRAN 1200063L1, Manual

Page: 56 / 137

Chapter 4. Testing and Troubleshooting
4-12 DSU III TDM User Manual 61200063L1-20
Test Purpose
The
DTE O
NLY
test is used for the following purposes:
• Verify integrity of the DTE interface.
• Verify integrity of connection between DTE and DSU III TDM.
Initiating
Follow the menu path outlined in Figure 4-10 to initiate a DTE O
NLY
test.
Figure 4-10. Initiating a DTE Only Test
Interpreting Test Results
A BERT tester must be used to interpret the test results of a DTE O
NLY
test.
1=DTE & LOOP(LL)
2=LOOP ONLY (RT)
3=DTE ONLY
4=DTE WITH TP
1=LOCAL UNIT 5=TEST PATTERN
2=TEST 6=SELF TEST
2=REMOTE UNIT
3=DBU CONNECTION