SARA-R4/N4 series-AT Commands Manual
UBX-17003787 - R09

10V24 control and V25ter
Page 101 of 307
10.9î™–î™–î™–î™–UART data rate configuration +IPR
+IPR
SARA-R404M SARA-R410M-01B SARA-R410M-02B SARA-R410M-52B SARA-R412MModules
SARA-N4
Syntax PIN required Settings saved Can be aborted Response time Error referenceAttributes
partial No Profile No - +CME Error
10.9.1î™–î™–î™–î™–Description
Specifies the data rate at which the DCE accepts commands on the UART interface. The full range of data
rates depends on HW or other criteria.
When supported, the autobauding feature allows baud rate recognition by the DCE when it operates in
command mode.
The command settings are ignored when the AT command interface runs either on the USB or on the SPI
interface. The DCE sends the "OK" final result code but the command will have no effect.
10.9.2î™–î™–î™–î™–Syntax
Type Syntax Response Example
Set AT+IPR=[<rate>] OK AT+IPR=9600
OK
Read AT+IPR? +IPR: <rate>
OK
+IPR: 9600
OK
Test AT+IPR=? +IPR: (list of supported
autodetectable <rate> values)[,(list
of fixed only <rate> values)]
OK
+IPR: (0,2400,4800,9600,19200,
38400,57600,115200),()
OK
10.9.3î™–î™–î™–î™–Defined values
Parameter Type Description
<rate> Number Baud rate
• 0 (factory-programmed value): autobauding
• 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 (default value), 230400, 460
800, 921600, 3000000, 3250000, 6000000, 6500000
10.9.4î™–î™–î™–î™–Notes
• On the UART AT interface, after the reception of the "OK" result code for the +IPR command, the DTE
shall wait for at least 100 ms before issuing a new AT command; this is to guarantee a proper baud rate
reconfiguration.
SARA-R4 / SARA-N4
• Automatic baud rate detection is not implemented (<rate>=0 is not supported).
• The factory-programmed value for <rate> is 115200.
• This command is not supported in the multiplexer mode. See the +CMUX AT command for more details.
SARA-R404M / SARA-R410M-01B / SARA-R410M-02B
• Valid baud rates <rate>= 9600, 19200, 38400, 57600, 115200.
SARA-R410M-52B / SARA-N4
• Valid baud rates <rate>= 9600, 19200, 38400, 57600, 115200, 230400, 460800.
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