Data Terminal Loopback - Paradyne 7974 User Manual

Testing

Data Terminal Loopback

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8-10
Data Terminal Loopback (DTLB) loops the user data back to the DTE. This
loopback is located as closely as possible to the user data port (DTE) interface.
DSL
Framer
All Ones CAP
Port
Procedure
To run a Data Terminal Loopback:
1. Position the cursor at the Start command next to Data Terminal 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 Terminal Loopback cannot be started when a Repeater Loopback, DCLB, or
Remote DCLB is already active on the data port.
August 2000
NTU/LTU
Port
EIA-530
Interface
Port
98-15933-01
7900-A2-GB21-00