Data Channel Loopback - Paradyne 7974 User Manual

Data Channel Loopback

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7900-A2-GB21-00
Data Channel Loopback (DCLB) loops the data from the network interface back
to the network. This loopback is located as closely as possible to the user data
port (DTE) interface.
NTU/LTU
DSL
CAP Framer
Port
Procedure
To run a Data Channel Loopback:
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.
Data Channel Loopback cannot be started when any of the following tests is
active: Line Loopback or Repeater Loopback on the network interface, or a Data
Terminal Loopback on the data port.
August 2000
Port
EIA-530
All Ones
Interface
Port
99-15934-01
Testing
8-11