Paradyne 3160-A4 Operator's Manual page 149

DTE Loopback (DLB)
The DTE Loopback command (DLB) loops the received signal on the DTE
Drop/Insert (DSX-1) port back to the DTE without change.
Procedure
To perform a DTE loopback:
3160-A2-GB24-10
DSU
DTE
DLB
ALL 1s
(DSX-1)
PORT 2 PORT 1
1. From the top-level menu screen, select Test.
2. From the Test screen, select Lpbk.
Test:
Rlpbk Lpbk
F1
3. From the Loopback screen, press the
on the screen.
4. Select DLB.
Loopback:
LLB PLB
F1
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 8-2, Valid Loopback
combinations).
March 2001
CSU
NETWORK
INTERFACE
496-14317-02
Ptrns
F2 F3
key until the DLB selection appears
DLB
F2 F3
Combinations, for valid loopback test
8. Testing
8-11