Paradyne 3160 - Manual (Page 128)

Maintenance
4-26 3160-A2-GB21-80 March 1999
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.
496-14318-02
CSU DSU
NETWORK
INTERFACE
DTE
(DSX-1)
RLB
PORT 1 PORT 2
ALL 1s
"
Procedure
To perform a Repeater 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 RLB selection
appears on the screen.
4. Select RLB.
F1
Loopback:
PLB
DLB RLB
F2 F3
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 for valid loopback test combinations).