Line Loopback
A Line Loopback (LLB) loops the received signal on the network interface back to
the network without change.
Procedure
To run a Line Loopback:
The Line Loopback cannot be started when a Repeater Loopback, Data Channel
Loopback (DCLB), Remote DCLB, or network-initiated Line Loopback is in
progress.
8700-A2-GB25-10
NTU/LTU
Network
CAP
Framer
Interface
1. Position the cursor at the Start command next to Line Loopback on the
Network 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.
4. Press Enter.
February 2001
Port
EIA-530
All 1s
Port
Interface
98-15931
5. Testing
5-3