Paradyne 8779, 8747, 8777, Hotwire M/SDSL and HDSL2 Termination Units manual DTE Loopback

Testing

DTE Loopback

DTE Loopback loops the DSX-1 or G.703 signal back to itself before the signal is sent to the Framer. Also, for DSX-1 models:

HIf the DSX-1 port is in a DS0 cross-connection, corresponding DSL time slots are sent all ones.

HIf the DSX-1 port is in Bypass mode or a DS1 cross-connection, all ones are sent to the corresponding DSL port and data received on the DSL link is ignored.

DSL

Port All Ones

CAP CAP

Transceiver Framer

T1/E1

Framer

LIU	DSX-1
	or G.703
	Port
	99-16614

"Procedure

To run a DTE Loopback:

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.

3.To manually stop the test, verify that the cursor is positioned at the Stop command.

4.Press Enter.

A DTE Loopback cannot be started when any other loopback test is in progress.

8-6 April 2000 8700-A2-GB20-00