NetVanta 950 IAD Configuration Guide
Testing Your System
61200788L1-29.1B
© 2004 ADTRAN, Inc.
39
The FXS interface can be tested in several ways. There are tests for the network side for signaling and talk
path and tests for the FXS interface side. An analog phone must be connected to the FXS interface 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 FXS 4/7, all test commands
must be made from the
IAD (config-fxs 4/7)#
prompt.
Interface
Command
Description
FXS
loopback analog
Initiates an internal loopback toward the
analog phone interface (2-wire interface)
FXS
loopback digital
Initiates an internal loopback toward the
network interface (2-wire interface)
FXS
no loopback
Deactivates loopback
FXS
test tone near
Sends a 1kHz test tone toward the
analog phone interface
FXS
test tone far
Sends a 1kHz test tone toward the
network interface
FXS
no test tone
Deactivates test tone
FXS
test battery
Provides battery on the analog phone
interface. Any digits dialed on the analog
phone should be heard in the handset
speaker.
FXS
no test battery
Deactivates battery test
FXS
test reverse-battery
Reverses polarity of the battery on the
analog phone interface. Any digits dialed
on the analog phone should be heard in
the handset speaker.
FXS
no test reverse-battery
Deactivates battery test
FXS
test signaling-bits
Transmits either 0000, 0101, 1010, or
1111 toward the network
FXS
no test signaling-bits
Deactivates signaling bits test
FXS
test ringing
Rings the analog phone with a 2 seconds
on and 4 seconds off cadence
FXS
no test ringing
Deactivates the ringing test
FXS
test dtmf <0-9, #, *, A-D>
Sends the DTMF tones for up to 25
specified digits to the analog interface
FXS
no test dtmf
Deactivates DTMF tone test
FXS
test tip-open
Provides battery on ring and high
impedance on tip. Useful when
troubleshooting ground start interfaces
FXS
no test tip-open
Deactivates the tip open test
