Dte Loopback - Paradyne 8779 User Manual

8. Testing

DTE Loopback

DTE Loopback loops the DSX-1 or G.703 signal back to itself, retaining (bipolar
violation) BPV transparency. Also:
T
T
Procedure
To run a DTE Loopback:
The DTE Loopback cannot be started when any other loopback test is in progress.
8-6
If the DSX-1 or G.703 port is in a DS0 cross-connection, the time slots
cross-connected to the DSX-1 or G.703 port are sent all ones.
If the DSX-1 or G.703 port is in Bypass mode or a DS1 cross-connection, all
ones are sent to the corresponding port and data received on the connected
ports will be ignored.
CAP
DSL
All Ones
Port
Transceiver
1. Position the cursor at the Start command next to DTE Loopback on the
Network & DSX-1 or Network & G.703 Tests screen.
2. Press Enter.
The Start command is changed to Stop. Status is changed to Active.
3. To manually stop the test, verify that the cursor is positioned at the Stop
command.
4. Press Enter.
Status is changed to Inactive.
May 2002
CAP T1/E1
LIU
Framer Framer
DSX-1
or G.703
Port
02-16614-01
8700-A2-GB20-40