Initiating; Interpreting Test Results; Figure 11-14.Initiating A Test Using A Test Pattern - ADTRAN DSU III AR User Manual

Initiating

Follow the menu path outlined in Figure 11-14 to initiate a test
using a 511 test pattern.
1= LOCAL UNIT
2=TEST
2= REMOTE UNIT

Interpreting Test Results

If the unit is functioning properly, the display should show the
following:
TEST PATTERN
TST ERR = 0000
The first line of the display indicates the type of test being
performed while the second line of the display indicates the
number of errors accumulated by the test pattern detector.
If errors occur during this test, the test error count can be reset to
zero by pressing 1 on the keypad.
To verify proper operation of this test, single bit errors can be
injected into the transmitted test pattern by pressing 2. These errors
appear on the T
Keypad
61202011L1-1
1= DTE & LOOP (LL)
2= LOOP ONLY (RT)
3= DTE ONLY
4= DTE WITH TP
5= TEST PATTERN
6= SELF TEST
Figure 11-14. Initiating a Test Using a Test Pattern
E display.
EST RR
Effect
1 Zeros error counter
2 Injects single Error
DSU III AR User Manual
Chapter 11. Testing and Troubleshooting
1= 2047 PATTERN
2= 511 PATTERN
3= STRESS PTRN #1
4= STRESS PTRN #2
5= STRESS PTRN #3
6= STRESS PTRN #4
11-21