Starting A Repeater Loopback - Paradyne 3160-A3 Operator's Manual

4. Maintenance

Starting a Repeater Loopback

The Repeater Loopback command (RLB) loops the signal being sent to the
network back to the DTE Drop/Insert (DSX-1) and data ports. The signal is looped
back as close to the network interface as possible (after it has passed through the
framing circuitry of the DSU/CSU). Framing CRCs and BPVs are corrected.
Procedure
To perform a Repeater loopback:
4-26
DSU
DTE
(DSX-1)
PORT 1 PORT 2
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 RLB.
Loopback:
PLB DLB
F1
Test Started appears on Line 2. If a Repeater 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, Valid Loopback
combinations).
February 2001
CSU
NETWORK
INTERFACE
RLB
ALL 1s
496-14318-02
Ptrns
F2 F3
key until the RLB selection appears
RLB
F2 F3
Combinations, for valid loopback test
3160-A2-GB21-90