31
&T3 Local digital loopback test. This test verifies the
operation of two connected modems and the phone
channel.
For example:
1.
Your modem should be on-hook and in
command mode. Type AT\N0 <Enter>. This
specifies a normal connection.
2.
Type AT S18=10 <Enter>. This specifies a test
period of 10 seconds.
3.
Establish a connection with the remote
modem by typing ATDnnn-nnnn <Enter>.
Wait for the CONNECT message.
4.
Issue the escape sequence to put the modem
back into command mode (type +++ without
pressing <Enter>). When you see the OK
message, your modem is in command mode.
5.
Issue the command AT &T3 <Enter>. This
initiates the local digital loopback test.
6.
Have someone at the remote modem type a
simple character pattern. This character
pattern then loops through your modem back
to the remote modem. Everything is working
properly if the original character pattern is
echoed back to the remote user’s screen.
7.
The test will end automatically after 10
seconds.
8.
When your testing is complete, hang up the
line and return your modem to its original
state by typing ATHZ <Enter>.
&T4 Allows local modem to accept a request from the
remote modem for a remote digital loopback test.
(See S23.)
Summary of Contents for STI-FAX/28.8
Page 3: ...iii 28 8 Communicator V 34 Data Fax Modem Plug n Play PC Card User Guide ...
Page 12: ...xii Notes ...
Page 24: ...12 Notes ...
Page 54: ...42 Notes ...
Page 56: ...44 Notes ...
