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Appendix C. System Messages
61202156L2-1 TDU 120e User Manual C-3
Status Messages
Network Interface (NI)
Payload On
Payload loopback activated.
Line On
Line Loopback activated.
Loopback Off
All loopbacks deactivated.
Factory Restore
Factory setting restored.
Power On
Unit powered on.
Self-Test
Internal self-test performed.
Nx/DBU Interface
The following messages indicate the status of the Nx/
DBU card:
Loop Up
Data is looped at both the network interface and DTE
interface of the card.
Remote Loop Up
Sending V.54 pattern in an attempt to loop up a remote
device.
511 Pattern On
Sending 511 pattern towards the network interface.
Loop Down
Data is no longer looped back at the network interface or
DTE interface.