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Command Reference Guide DSX-1 Interface Configuration Command Set
61200510L1-35E Copyright © 2005 ADTRAN 591
loopback remote line [inband]
Use the loopback remote line inband command to send a loopback code to the remote unit to initiate a
line loopback. Use the no form of this command to send a loopdown code to the remote unit to deactivate
the loopback.
Syntax Description
inband Uses the inband channel to initiate a full 1.544 Mbps physical (metallic) loopback
of the signal received by the remote unit from the network.
Default Values
No defaults necessary for this command.
Applicable Platforms
This command applies to the NetVanta 1000R, 3000, 4000, and 5000 and Total Access 900 Series units.
Command History
Release 1.1 Command was introduced.
Functional Notes
A remote loopback can only be issued if a cross-connect does not exist on the interface and if the signaling
mode is set to none. The following diagram depicts the difference between a line and payload loopback.
Usage Examples
The following example initiates a remote line loopback using the inband channel:
(config)#interface t1 1/2
(config-t1 1/2)#loopback remote line inband
T1 Network Interface
DS1
NI CSU
Line Loopback