Use the command-line interface
AT commands
Digi TransPort WR Routers User Guide
112
The AT command interface
The
AT
command prefix is for commands that are common to modems. To configure the router
using AT commands, you must first connect it to a suitable asynchronous terminal.
1
Set the interface speed/data format for your terminal to
115,200bps
,
8
data bits,
no
parity and
1
stop bit. You can change these settings later if necessary.
2
When your terminal is correctly configured, apply power and wait for the
B2
indicator to stop
flashing. The device is now ready to respond to commands from an attached terminal and is in
command mode
. Alternatively, you can configure the router to automatically connect to a
remote system on powerup,
3
Type
AT
(in upper or lower case), and press [
Enter
]. The router should respond with the message
OK
. This message is issued after successful completion of each command. If an invalid
command is entered, the router will respond with the message
ERROR
.
If there is no response, check that the serial cable is properly connected and that your terminal
or PC communications software is correctly configured before trying again.
If you have local command echo enabled on your terminal, you may see the AT command
displayed as
AATT
. If this happens, use the
ATE0
command (which will appear as
AATTEE00
), to
prevent the router from providing command echo. After this command has been entered,
further commands will be displayed without the echo.
AT commands are case-insensitive
The
AT
command prefix and the commands that follow it can be entered in upper or lower case.
Entering multiple commands
After the prefix, you can enter one or more commands on the same line of up to 40 characters. When
the line is entered, the router will execute each command in turn.
Escape sequences
If you enter a command such as
ATD
, which results in the router successfully establishing a
connection to a remote system, it will issue a
CONNECT
result code and switch from command
mode to on-line mode. This means that it will no longer accept commands from the terminal.
Instead, data will be passed transparently through the router to the remote system. In the same
way, data from the remote system will pass straight through to your terminal.
The router will automatically return to command mode if the connection to the remote system is
terminated.
To return to command mode manually, you must enter a special sequence of characters called the
escape sequence. This consists of three occurrences of the escape character, a pause (user
configurable) and then AT. The default escape character is
+
so the default escape sequence is:
+++ {pause} AT
Entering this sequence when the router is on-line causes the router to return to command mode but
it will NOT disconnect from the remote system unless you specifically instruct it to do so (using
ATH
or another method of disconnecting). If you have not disconnected the call, use the
ATO
command
to go back on-line.
Summary of Contents for TransPort WR11
Page 1: ...User Guide Digi TransPort WR Routers ...
Page 650: ...Configure system settings NTP parameters Digi TransPort WR Routers User Guide 650 ...
Page 661: ...Configure system settings General system parameters Digi TransPort WR Routers User Guide 661 ...
Page 662: ...Configure system settings General system parameters Digi TransPort WR Routers User Guide 662 ...
Page 663: ...Configure system settings General system parameters Digi TransPort WR Routers User Guide 663 ...
Page 682: ...Configure Remote Management SNMP parameters Digi TransPort WR Routers User Guide 679 ...
Page 683: ...Configure Remote Management SNMP parameters Digi TransPort WR Routers User Guide 680 ...
Page 813: ...Manage networks and connections Top Talkers Digi TransPort WR Routers User Guide 808 ...
Page 814: ...Manage networks and connections Top Talkers Digi TransPort WR Routers User Guide 809 ...
Page 815: ...Manage networks and connections Top Talkers Digi TransPort WR Routers User Guide 810 ...
Page 816: ...Manage networks and connections Top Talkers Digi TransPort WR Routers User Guide 811 ...
Page 817: ...Manage networks and connections Top Talkers Digi TransPort WR Routers User Guide 812 ...
Page 818: ...Manage networks and connections Top Talkers Digi TransPort WR Routers User Guide 813 ...
Page 855: ...Device administration Reboot the router Digi TransPort WR Routers User Guide 844 ...