Data Channel Loopback - Paradyne 7974 User Manual

Data Channel Loopback

A Data Channel Loopback (DCLB) loops the data from the network interface back
to the network. This loopback is located as close as possible to the user data port
(DTE) interface.
Procedure
To run a Data Channel Loopback:
The Data Channel Loopback cannot be started when a Line Loopback or
Repeater Loopback is active on the network interface, or a Data Terminal
Loopback is active on the data port.
7900-A2-GB21-20
NTU/LTU
DSL
Framer
CAP
Port
1. Position the cursor at the Start command next to Data Channel Loopback on
the SYNC Data Port Tests screen.
2. Press Enter.
The Start command is changed to Stop.
3. To manually stop the test, verify that the cursor is positioned at the Stop
command and press Enter.
December 2001
Port
EIA-530
All Ones
Interface
Port
99-15934-01
8. Testing
8-11