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8. Testing
8-12
May 2002 8700-A2-GB20-40
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.
Telco-Initiated Remote Line Loopback cannot be used in cross-connect mode.
CAP
DSX-1
Port
CAPT1
LIU
Framer Framer Transceiver
99-16626
CAP CAP T1
LIU
FramerFramerTransceiver
Telco
Local Remote
DSX-1
Port
AIS
DSL