ADTRAN AOS Version R10.1.0 Command Reference Manual page 1756

Command Reference Guide FXO Interface Command Set
test tip-ground
Use the test tip-ground command to detect the removal of the ring ground and check for the loop
condition on an active foreign exchange office (FXO) interface. This is helpful when troubleshooting
problems with ground start (GS) circuits. Use the no form of this command to return to the default value.
Syntax Description
No subcommands.
Default Values
By default, this command is disabled.
Command History
Release 7.1 Command was introduced.
Usage Examples
The following example forces a tip-ground test of the FXO interface:
(config)#interface fxo 0/1
(config-fxo 0/1)#test tip-ground
60000CRG0-35E Copyright © 2012 ADTRAN, Inc. 1756