Paradyne U8777 - Manual (Page 90)

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
CAP T1
LIU
Framer Framer Transceiver
99-16626
CAP CAP T1
LIU
Framer Framer Transceiver
Telco
Local Remote
DSX-1
Port
AIS
DSL