Ublox SARA-R4 Series

SARA-R4/N4 series-AT Commands Manual
UBX-17003787 - R09
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10V24 control and V25ter
Page 96 of 307
10.4DSR override &S
&S
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
full No Profile No - +CME Error
10.4.1Description
Selects how the module will control RS232 circuit 107 - Data Set Ready (DSR).
10.4.2Syntax
Type Syntax Response Example
Action AT&S[<value>] OK
10.4.3Defined values
Parameter Type Description
<value> Number
• 0: sets the DSR line to ON
• 1 (default value and factory-programmed value): sets the DSR line to ON in data
mode and to OFF in command mode
10.4.4Notes
• See the corresponding module system integration manual for the DSR behavior during the initialization
phase of the module.
10.5Flow control &K
&K
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
full No Profile No - +CME Error
10.5.1Description
Controls the flow control mechanism. The following settings are allowed:
• No flow control
• HW flow control also referred with RTS / CTS flow control
• SW flow control also referred with XON / XOFF flow control
10.5.2Syntax
Type Syntax Response Example
Action AT&K[<value>] OK
10.5.3Defined values
Parameter Type Description
<value> Number
• 0: disable DTE flow control
• 3 (default and factory-programmed value): enable the RTS/CTS DTE flow control
• 4: enable the XON/XOFF DTE flow control
• 5: enable the XON/XOFF DTE flow control
• 6: enable the XON/XOFF DTE flow control
10.5.4Notes
• The command handling is the same for <value> parameter 4, 5 or 6.