Paradyne 7112 manual Line Loopback, Payload Loopback

Testing

Line Loopback

Line Loopback (LLB) loops the received signal on the network interface back to the network without change.

"Procedure

To run a Line loopback:

1.Position the cursor at the Start command next to Line Loopback on the Network Tests screen and press Enter.

2.The Start command is changed to Stop. If you want to manually stop the test, verify that the cursor is positioned at the Stop command and press Enter.

DSU CSU

LLB InterfaceNetwork

ALL 1s

DTE 496-15075

Line Loopback cannot be started when any of the following tests are already active:

￿Payload Loopback

￿Data Channel Loopback

￿Send Pattern test on the network interface.

Payload Loopback

Payload Loopback (PLB) loops the received signal on the network interface back to the network. Framing CRCs and BPVs are corrected.

"Procedure

To run a Payload loopback:

1.Position the cursor on the Start command next to Payload Loopback on the Network Tests screen and press Enter.

The Start command is changed to Stop.

7-4 March 1998 7112-A2-GB20-20