Monitoring and Testing
4-20
3166-A2-GB20-20
March 1999
Starting a Line Loopback
The Line Loopback command (LLB) loops the received signal on the network
interface back to the network without change.
98-15946
CSU
DSU
NETWORK
INTERFACE
ALL 1s
LLB
PORT 1
Procedure
To perform a Line loopback:
1. From the top-level menu screen, select Test.
2. From the Test screen, select Lpbk.
F1
Test:
Rlpbk Lpbk
Ptrns
F2
F3
3. From the Loopback screen, select LLB.
F1
Loopback:
Abort
LLB
PLB
F2
F3
Test Started
appears on Line 2. If a Line 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
Table 4-7
for valid loopback test combinations).
Summary of Contents for 3166 DSU
Page 1: ...ACCULINK 3166 DSU CSU USER S GUIDE Document No 3166 A2 GB20 20 March 1999...
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Page 20: ...Introduction 1 4 3166 A2 GB20 20 March 1999 This page intentionally left blank...
Page 68: ...SDCP Operation 3 42 3166 A2 GB20 20 March 1999 This page intentionally left blank...
Page 102: ...SDCP Menu A 2 3166 A2 GB20 20 March 1999 This page intentionally left blank...
Page 140: ...Pin Assignments D 12 3166 A2 GB20 20 March 1999 This page intentionally left blank...
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