Paradyne 3166 CSU - Manual (Page 88)

Monitoring and Testing
4-22 3166-A2-GB20-10 November 1998
Starting a Repeater Loopback
The Repeater Loopback command (RLB) loops the signal being sent to the
network back to the data port. 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.
98-15948
CSU DSU
NETWORK
INTERFACE RLB
PORT 1
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:
LLB
PLB 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 4-7 for valid loopback test combinations).