Starting A Repeater Loopback; Starting A Data Channel Loopback - Paradyne 3163 User Manual

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.
DSU
PORT 1
"
Procedure
To perform a Repeater loopback:
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
the RLB selection appears on the screen.
4. Select RLB.
Loopback:
LLB
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
valid loopback test combinations).
3163-A2-GB20-10
CSU
NETWORK
INTERFACE
RLB
ALL 1s
98-15948
Ptrns
F2 F3
key until
PLB RLB
F2 F3
Table 4-5 for

Starting a Data Channel Loopback

The Data Channel Loopback command (DCLB) loops
the data received from the network interface, for all DS0
channels allocated to the data port, back to the network.
The loopback occurs after the data passes through the port
circuitry but before it is sent out the data port.
DSU
"
Procedure
To perform a Data Channel loopback:
1. From the top-level menu screen, select Test.
2. From the Test screen, select Lpbk.
3. From the Loopback screen, press the
the DCLB selection appears on the screen.
4. Select DCLB.
March 1999
Monitoring and Testing
CSU
NETWORK
INTERFACE
DCLB
98-16103
Test:
Rlpbk Lpbk Ptrns
F1 F2 F3
Loopback:
PLB RLB DCLB
F1 F2 F3
key until
4-13