ADTRAN AOS Version R10.1.0 Command Reference Manual page 1754

Command Reference Guide
test loop
Use the test loop command to manually control the foreign exchange office (FXO) interface's hook
switch. This is helpful when troubleshooting problems with the FXO equipment. Use the no form of this
command to disable this feature. Variations of this command include:
test loop closed
test loop open
Syntax Description
closed
open
Default Values
By default, this command is disabled.
Command History
Release 7.1
Usage Examples
The following example opens the interface's hook switch:
(config)#interface fxo 02/1
(config-fxo 0/1)#test loop open
60000CRG0-35E
Closes the hook switch, allowing DC current to flow through the interface.
Opens the hook switch, preventing DC current from flowing through the
interface.
Command was introduced.
Copyright © 2012 ADTRAN, Inc.
FXO Interface Command Set
1754