Quectel UG Series

UMTS/HSPA Module Series
WCDMA UGxx AT Commands Manual
WCDMA_UGxx_AT_Commands_Manual Confidential / Released 32 / 247
Parameter
3.3. AT+IFC Set TE-TA Local Data Flow Control
AT+IFC determines the flow control behavior of the serial port.
Parameter
Maximum Response Time
300ms
Reference
V.25ter
<value> 0 TA ignores status on DTR
1 ONOFF on DTR: Change to command mode while remaining the connected call
2 ONOFF on DTR: Disconnect data call, and change to command mode. During
state DTR=OFF, auto-answer function is disabled
AT+IFC Set TE-TA Local Data Flow Control
Test Command
AT+IFC=?
Response
+IFC: (list of supported <dce_by_dte>s),(list of supported
<dte_by_dce>s)
OK
Read Command
AT+IFC?
Response
+IFC: <dce_by_dte>,<dte_by_dce>
OK
Write Command
AT+IFC=<dce_by_dte>,<dte_by_dce>
Response
This parameter setting determines the data flow control on
the serial interface for data mode.
OK
Maximum Response Time
300ms
Reference
V.25ter
<dce_by_dte> Specifies the method that will be used by TE when receiving data from TA
0 None
2 RTS flow control
<dte_by_dce> Specifies the method that will be used by TA when receiving data from TE
Quectel
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