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4. Maintenance
4-32
February 2001 3160-A2-GB21-90
The Test Started screen appears.
If the DSU/CSU is already sending the test pattern you selected, the message
Already active
appears. If you selected an incompatible test pattern
combination, the message
Invld Test Combo
appears. See Tabl e 4-9,
Valid Send Test Pattern Combinations, for valid combinations.
Table 4-9. Valid Send Test Pattern Combinations
QRSS
(Network) QRSS (Port)
1-in8
(Network) 511 (Port)
QRSS
(Network)
N/ANONONO
QRSS (Port)
NO YES (on
separate ports)
N/A YES (on
separate ports)
1 in 8
(Network)
NO NO N/A NO
511 (Port)
NO N/A N/A YES (on
separate ports)
F1
F2 F3
Send:
Name and Dest
Test Started