Datasheet

INSYS Modem 336/56k 4.1 (UL) AT Command Set
Command Description
AT+GCI=<n> Set country code
The command AT+GCI allows the customization of the modem for different countries.
As default, the modem is set to Europe (CTR21) with AT+GCI=FD. Currently, the modem
is only authorized for this country profile.
Note: Please note that all country settings will result in ALL modem settings
being reset to the default settings (such as AT&F&W). Therefore, please
select a country profile first and adjust the settings afterwards.
ATH Disconnect connection
The modem terminates the connection.
AT*H<n> Declaration of the connection protocol speed (MNP 10)
AT*H<n> determines the speed that is used to exchange the declarations during the
MNP10 connection setup before the modems enter the MNP 10 mode.
AT*H0 Connection setup takes place with the highest possible speed. (default)
AT*H1 Connection setup takes place with 1,200 bps
AT*H2 Connection setup takes place with 4800 bps
ATI<n> Identification
The modem sends an identification to the PC, according to the following parameter:
ATI0 Product code
ATI1 Previously calculated EEPROM checksum
ATI2 Calculation of the EEPROM checksum and comparison with the previously
calculated checksum stored in the EPROM. OK for correct comparison.
ATI3 Number of firmware version in the EEPROM
ATI4 Modem version number
ATI5 Country code parameter (Germany = 006/Europe = 253)
ATI6 Version number and revision of “data pump”
AT*I Manual query of the alarm input
Response <Input 1>,<Input 2>
The response provides the values “1” for inactive (open) and “0” for active (connected to
ground).
AT+IPR=<n> Determine baud rate
The command AT+IPR switches the automatic baud rate detection on and off.
AT+IPR=0 Activates the automatic baud rate detection (default)
AT+IPR=<n> Sets the modem to the fixed baud rate n. The following baud rates are
supported: 300, 1,200, 2,400, 4,800, 9,600, 19,200, 38,400, 57,600 and
115,200.
The setting AT+IPR is not saved with AT&W , which means that in order to inactivate
auto bauding, the command AT+IPR must be sent to the modem every time it is
switched on.
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