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5. Testing
8784-A2-GB20-30 February 2001
5-11
Telco-Initiated Remote Line Loopback
If Remote Telco Loopback is enabled, a Telco-initiated line loopback loops
received data at the remote unit and passes it back to the Telco through the local
unit.
The following figure shows the data flow for a remote Telco-initiated payload
loopback.
CAP
DSX-1
Port
CAP T1
LIU
FramerFramerTransceiver
98-16109
CAPCAPT1
LIU
Framer Framer Transceiver
Telco
LocalRemote
DSX-1
Port
AIS
DSL