Foma SH700i, Руководство пользователя

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AT commands are commands used to set FOMA terminal functions from a PC. When AT
commands are entered from a PC, the FOMA terminal performs the corresponding
operations.
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AT command input format
AT commands must always start with “AT”. Enter in single-byte alphanumeric characters.
Below is an input example.
Each AT command and parameter (number or symbol) following the command must be
entered on a single line. A single line means the characters from the first character until the
character directly before the
o
is pressed. Up to 160 characters (including “AT”) can be
entered.
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AT command input modes
To operate the FOMA terminal using AT commands, set the PC to terminal mode. In terminal
mode, the characters entered from the keyboard are sent directly to the communication port
to operate the FOMA terminal.
Offline mode
The FOMA terminal is in stand-by. Normally, this mode is used to operate the FOMA terminal using AT
commands.
Online data mode
The FOMA terminal is connected and performing data communication. When a AT command is entered in this
mode, the characters are sent directly to the receiver, and may cause the receiver’s modem to malfunction.
Do not enter AT commands in this mode.
Online command mode
Even when the FOMA terminal is connected and performing communication, with special operations
(described below), operation by AT commands is possible. When in this mode, AT commands are executed
while remaining connected to the receiver, and communications can be resumed after the operation is
completed.
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Switching between online data mode and online command mode
Use either of the following methods to switch the FOMA terminal from online data mode to
online command mode.
Enter “+++” command, or enter the set code in the “S2” register.
Turn the RS-232C* ER signal OFF when set to “AT&D1”.
To switch from online command mode to online data mode, enter “ATO
o
”.
* USB interface emulates an RS-232C signal line, enabling RS-232C signal line control by the communication
application.
AT Command List
AT Commands
Note
Terminal mode enables a single PC to operate like a communication terminal. Characters entered from the
keyboard are sent to the device or line connected to the communication port.
ATD
*
99
***
1#
o
Return symbol: Entered by pressing the Enter key.
Used to separate commands.
Parameter: The command argument.
Command: The command name.
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