View source for Serial Interface Control Commands

== Serial  Interface  Control  Commands ==

===[https://wiki.teltonika-networks.com/images/3/32/Quectel_EC25%26EC21_AT_Commands_Manual_V1.3.pdf#page=33&zoom=100,68,232 AT&C Set DCD Function Mode]===
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The command controls the behavior of the UE‟s DCD (data carrier detection) line. 

===[https://wiki.teltonika-networks.com/images/3/32/Quectel_EC25%26EC21_AT_Commands_Manual_V1.3.pdf#page=33&zoom=100,68,700 AT&D Set DTR Function Mode]===
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The commanddetermines how the UE responds if DTR line is changed from lowto highlevelduring data mode.

===[https://wiki.teltonika-networks.com/images/3/32/Quectel_EC25%26EC21_AT_Commands_Manual_V1.3.pdf#page=34&zoom=100,68,320 AT+IFC Set TE-TA Local Data Flow Control]===
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The command determines the flow control behavior of the serial port.

===[https://wiki.teltonika-networks.com/images/3/32/Quectel_EC25%26EC21_AT_Commands_Manual_V1.3.pdf#page=35&zoom=100,68,388 AT+IFC Set TE-TA Local Data Flow Control]===
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The command determines the serial interface character framing format and parity received by TA from TE.

===[https://wiki.teltonika-networks.com/images/3/32/Quectel_EC25%26EC21_AT_Commands_Manual_V1.3.pdf#page=36&zoom=100,68,273 AT+IPR Set TE-TA Fixed Local Rate]===
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The commandis used to query and set the baud rate of the UART. The default baud rate value ('''<rate>''') is 115200bps. The setting of '''<rate>''' will not be restored with '''AT&F'''.

===[https://wiki.teltonika-networks.com/images/3/32/Quectel_EC25%26EC21_AT_Commands_Manual_V1.3.pdf#page=37&zoom=100,68,729 AT+QRIR Restore RI Behaviorto Inactive]===
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If the RI (ring indicator) behavior is "always",it can be restored to inactive by the Execution Command. The RI behavior is controlled by '''AT+QCFG'''. Please refer to '''AT+QCFG="urc/ri/ring'''", '''AT+QCFG="urc/ri/sms incoming'''"and '''AT+QCFG="urc/ri/other'''"for more details.

[[Category:TRM240 AT Commands]]