Maintenance
4-25
3160-A2-GB21-80
March 1999
Starting a DTE Loopback
The DTE Loopback command (DLB) loops the received signal on the DTE
Drop/Insert (DSX-1) port back to the DTE without change.
496-14317-02
CSU
DSU
NETWORK
INTERFACE
DTE
(DSX-1)
DLB
PORT 1
PORT 2
ALL 1s
Procedure
To perform a DTE 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, press the
key until the DLB selection
appears on the screen.
4. Select DLB.
F1
Loopback:
LLB
PLB
DLB
F2
F3
Test Started
appears on Line 2. If a DTE 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 4-8
for valid loopback test combinations).
Содержание ACCULINK 3160
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