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Chapter 4. Testing and Troubleshooting
Test Purpose
A DTE test using a test pattern is used to verify the integrity of the network
interface.
Initiating
Follow the menu path outlined in Figure 4-12 to initiate a DTE test using a test
pattern.
2=TEST
Test Pattern Descriptions
The test patterns are described as follows:
2047 Pattern
511 Pattern
Stress Pattern 1
Stress Pattern 2
Stress Pattern 3
Stress Pattern 4
4-14
1=LOCAL UNIT
2=REMOTE UNIT
3=DBU CONNECTION
Figure 4-12. Initiating a DTE Test with Test Pattern
Standard 2047 pattern.
Standard 511 random pattern.
Stress pattern with alternating high and low ones densities.
Repeated pattern of 100 octets: 1111 1111; followed by 100
octets: 0000 0000.
Stress pattern with alternating medium and low ones densi-
ties. Repeated pattern of 100 octets: 0111 1110; followed by
100 octets: 0000 0000.
Stress pattern with medium ones density. Continuous series
of octets: 0011 0010.
Stress pattern with low ones density. Continuous series of
octets: 0100 0000.
DSU III TDM User Manual
1=DTE & LOOP(LL)
2=LOOP ONLY (RT)
3=DTE ONLY
4=DTE WITH TP
5=TEST PATTERN
6=SELF TEST
1=2047 PATTERN
2=511 PATTERN
3=STRESS PTRN #1
4=STRESS PTRN #2
5=STRESS PTRN #3
6=STRESS PTRN #4
61200063L1-20
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Table of Contents
Troubleshooting
