ADTRAN 1200063L1, Manual

Page: 69 / 137

Chapter 4. Testing and Troubleshooting
61200063L1-20 DSU III TDM User Manual 4-25
Test Purpose
To verify the DBU circuit and DBU modules in both the local and remote
DSU III TDM are functioning properly.
Initiating
Follow the menu path outlined in Figure 4-19 to initiate a DBU Connection
test.
Figure 4-20. Initiating a DBU Connection Test
Interpreting Test Results
If the unit is functioning properly, the DSU III TDM displays:
DBU TEST PATTERN
TST ERR = 0000
1=LOCAL UNIT 1=98376113
2=TEST 2=REMOTE UNIT 2=EMPTY
3=EMPTY
3=DBU CONNECTION DIAL STORED # 4=EMPTY
5=EMPTY
ENTER DIAL # 6=EMPTY
7=EMPTY
8=EMPTY
9=EMPTY
A=EMPTY