8. Troubleshooting

Repeater Loopback

The Repeater Loopback (RLB) loops data received from the data ports and the DSX-1 interface after the signal has passed through the framing circuitry. Use RLB to ensure that all of the data is correct up to the point where it is sent over the interface. This helps to indicate that the FrameSaver unit is operational.

Main Menu TestNetwork Physical Tests

An attached device or test equipment should generate and monitor data to be looped back.

Other

T1

Interface

Framer

RLB

AIS

The T1

Interface

 

 

97-15338

he FrameSaver unit will not respond to any messages from the network during this test.

CAUTION:

This test may affect operation of frame relay PVCs assigned to the selected interface. While in loopback, the frame relay link will be down so any IP data being sent while this test is active will be disrupted.

An RLB cannot be started when one of the following tests is active:

Payload Loopback, Send Remote Line Loopback, or an active Monitor Pattern on this network interface.

All loopbacks on any other T1 interface with DS0s assigned to this network interface.

Send Pattern Test on this network interface or any synchronous data port (Port

TUse set to Synchronous) assigned to this interface.

Send V.54 or FT1 Loopback, or Data Channel Loopback on any synchronous data port (Port Use set to Synchronous) assigned to this network interface.

9128-A2-GB20-80

September 2002

8-29

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Paradyne 9126-II, CSU, DSU, 9128-II manual Repeater Loopback, Rlb Ais