ADTRAN DUAL Nx56/64 1200142L1# User Manual page 41

Dual Nx56/64 V.35 Option Module
61200142L1-1
Loop-Up
Data is looped back at both the network interface and the
DTE interface of the card
Remote Loop Up
Sending a V.54 pattern in an attempt to loop up a remote
device
511 Pattern On
Sending a 511 pattern towards the network interface
Loop Down
Data is no longer looped back at the network interface or
the DTE interface
511 Pattern Off
No longer sending a 511 pattern towards the network
interface
Dual Nx56/64 Option Module User Manual
Appendix A. System Messages
A-3