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30
AT Command Reference Guide of Module Product
ME3630
AT&D0
OK
4.3.
AT&S Set Data Set Ready (DSR) Line Mode
Set command controls the RS232 DSR pin behavior.
Command
Response
&S[<n>]
<CR><LF>OK<CR><LF>
or
<CR><LF>+CME ERROR: <err><CR><LF>
Parameter
<n>:
0 - always High
1 - High when connected
NOTE: if parameter is omitted, the command has the same behavior as AT&S0. And the value can be available from the command AT&V.
Example
AT&S0
OK
4.4.
AT+IFC DTE-DCE Local Flow Control(not support yet)
This set command is used to control the operation of local flow control between the DTE and DCE during the data state. It
accepts two numeric subparameters:
<DCE_by_DTE>, which specifies the method to be used by the DTE to control the flow of received data from the DCE;
<DTE_by_DCE>, which specifies the method to be used by the DCE to control the flow of transmitted data from the DTE.
Command
Response
+IFC=[<DCE_by_DTE> [,<DTE_by_DCE>]]
<CR><LF>OK<CR><LF>
or
<CR><LF>+CME ERROR: <err><CR><LF>
+IFC?
<CR><LF>+IFC: <DCE_by_DTE>,<DTE_by_DCE><CR><LF>
<CR><LF>OK<CR><LF>
+IFC=?
<CR><LF>+IFC: (list of supported <DCE_by_DTE> values),(list of supported
<DTE_by_DCE> values) <CR><LF>
<CR><LF>OK<CR><LF>
Parameter
Description
0
None flow control
1
DC1/DC3 on circuit 103; do not pass DC1/DC3 characters to the remote DCE
2
Circuit 133 (Ready for Receiving)
3
DC1/DC3 on circuit 103 with DC1/DC3 characters being passed through to the remote DCE in
addition to being acted upon for local flow control
4 to 127
Reserved for future standardization