Table of Contents
Advertisement
Appendix B. AT Commands
(ASCII decimal 8) to correct errors. The maximum length for a command line is
40 characters. The command line may contain a single command or a series of
commands after the AT attention code. When a series of commands are used, the
individual commands may be separated with spaces for readability.
USING AT COMMAND SET S-REGISTERS
Part of the Async-232 Module port configuration can be viewed or changed with
S-registers. See the S-Register List section for a description of supported S-regis-
ters.
Reading S-Registers
Type ATS, followed by the number of the S-register to be read, followed by a
question mar, and press Enter to read an S-register value. Key S-register values
are also displayed in response to the &V profile view command. For example:
ATS0?
Changing S-Registers
To change the value of an S-register, type ATS, followed by the number of the S-
register to be changed, an equal sign, the numeric value to be assigned to the reg-
ister, and press Enter. For example: ATS0=1
Originating a Call Using the AT Command Processor
To dial a number using the DTE terminal and AT commands type ATD and the
telephone number on one line and press Enter. For example: ATD5551212
If the call is successful, a CONNECT response message is returned to the DTE. If
not, the reason for the call failure is printed as an AT response message. If more
information regarding the call failure is available, it is displayed in the Last Dis-
connect Reason field in the Session Status terminal menu screen or optionally in
the event log. The Last Disconnect Reason may also be viewed using the ATI5 AT
command.
To end an active call, press the break in key sequence (+++) or redefined key
sequence, then type ATH and press Enter to hang-up the line. The call will also
be hung up if the DTE drops the DTR signal for at least 50 milliseconds.
AT COMMAND LIST
Following is a list of the supported AT commands and their functions.
B-2
Async-232 Module User Manual
Using AT Command Set S-Registers
Reading S-Registers
61200182L1-1
Advertisement
Table of Contents
