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Serial Interface Control Commands (view source)
Revision as of 15:59, 18 June 2020
, 15:59, 18 June 2020no edit summary
== Serial Interface Control Commands ==
== Serial Interface Control Commands ==
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[https://wiki.teltonika-networks.com/wikibase/images/2/2e/Quectel_EC25EC21_AT_Commands_Manual_V1.2.pdf#page=32 '''3.1. AT&C Set DCD Function Mode - page 31''']
The command controls the behavior of the UE‟s DCD (data carrier detection) line.
The command controls the behavior of the UE‟s DCD (data carrier detection) line.
[https://wiki.teltonika-networks.com/wikibase/images/2/2e/Quectel_EC25EC21_AT_Commands_Manual_V1.2.pdf#page=32 '''3.1. AT&C Set DCD Function Mode - page 31''']
[https://wiki.teltonika-networks.com/wikibase/images/2/2e/Quectel_EC25EC21_AT_Commands_Manual_V1.2.pdf#page=32 '''3.2. AT&D Set DTR Function Mode - page 31''']
The commanddetermines how the UE responds if DTR line is changed from lowto highlevelduring data mode.
[https://wiki.teltonika-networks.com/wikibase/images/2/2e/Quectel_EC25EC21_AT_Commands_Manual_V1.2.pdf#page=33 '''3.3. AT+IFC Set TE-TA Local Data Flow Control - page 32''']
The command determines the flow control behavior of the serial port.
[https://wiki.teltonika-networks.com/wikibase/images/2/2e/Quectel_EC25EC21_AT_Commands_Manual_V1.2.pdf#page=34 '''3.4. AT+IFC Set TE-TA Local Data Flow Control - page 33''']
The command determines the serial interface character framing format and parity received by TA from TE.
[https://wiki.teltonika-networks.com/wikibase/images/2/2e/Quectel_EC25EC21_AT_Commands_Manual_V1.2.pdf#page=35 '''3.5.AT+IPR Set TE-TA Fixed Local Rate - page 34''']
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/wikibase/images/2/2e/Quectel_EC25EC21_AT_Commands_Manual_V1.2.pdf#page=36 '''3.6.AT+QRIR Restore RI Behaviorto Inactive - page 35''']
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]]
