8. Testing
3160-A2-GB24-10 March 2001 8-15
4. Select DTLB.
5. From the DTLB screen, press the Function key for the port for which you want
to perform the data terminal loopback. Use the scroll keys, if necessary.
Test Started appears on Line 2. If a Data Terminal loopback is already in
progress, the Already Active message appears. If an invalid combination
of loopbacks is in progress, the error message Invld Test Combo appears
(see Table8-2, Valid Loopback Combinations, for valid loopback test
combinations).
Aborting Loopbacks
The Abort Loopback command stops all loopback tests or any selected loopba ck
test currently active on the DSU/CSU.
Procedure
To abort one or more loopback tests:
1. From the top-level menu screen, select Test.
2. From the Test screen, select Lpbk.
3. From the Loopback screen, select Abort.
F1 F2 F3
Loopback:
RLB DCLB DTLB
F1 F2 F3
Loopback: DTLB
Prt1 Prt2 Prt3
F1 F2 F3
Test:
Rlpbk Lpbk Ptrns
F1 F2 F3
Loopback:
Abort LLB PLB