Testing Your System
NetVanta 950 IAD Configuration Guide
40
© 2004 ADTRAN, Inc.
61200788L1-29.1B
The FXO interface can be tested in several ways. There are tests for the network side for signaling and talk
path and tests for the 2-wire interface side. External 2-wire interface equipment must be used for some
tests, and other network equipment must be connected for other tests. During each type of test, that
particular port’s LED will turn amber, indicating test mode operation. Each of these commands must be
made from within the prompt for the interface under test. For example, to test FXO 4/7, all test commands
must be made from the
IAD (config-fxo 4/7)#
prompt.
Interface
Command
Description
FXO
loopback analog
Initiates an internal loopback toward the
2-wire interface
FXO
loopback digital
Initiates an internal loopback toward the
network interface (4-wire interface)
FXO
no loopback
Deactivates loopback
FXO
test tone near
Sends a 1kHz test tone toward the 2-wire
interface
FXO
test tone far
Sends a 1kHz test tone toward the
network interface
FXO
no test tone
Deactivates test tone
FXO
test signaling-bits
Transmits either 0000, 0101, 1010, or
1111 toward the network
FXO
no test signaling-bits
Deactivates signaling bits test
FXO
test loop closed
Closes the loop (hook-switch) on the
2-wire interface
FXO
test loop open
Opens the loop (hook-switch) on the
2-wire interface
FXO
no test loop
Deactivates the loop test
FXO
test ring-ground
Sets the 2-wire interface to ring-ground
FXO
no test ring-ground
Deactivates the ring-ground test
