Multi-Tech Systems CDMA Wireless Modem - Manual (Page 77)

Chapter 11 – V24-V25 Commands
Multi-Tech Systems, Inc. CDMA Wireless AT Commands - PN S000294C 77
DTE-DCE Local Flow Control +IFC
Description: This command is used to control the operation of local serial connection flow control
between the data terminal device and the mobile.
Values: <Tx>
0: None Transmit data flow control disabled.
1: XON/XOFF Remove Xon (0x19) and Xoff (0x17) characters from data stream.
2: Hardware
Use RTS (Request To Send) signal (default)
3: XON/XOFF Leave Xon (0x19) and Xoff (0x17) characters in data stream.
<Rx>
0: None Receive data flow control disabled.
1: XON/XOFF Remove Xon (0x19) and Xoff (0x17) characters from data stream.
2: Hardware
Use CTS (Clear To Send) signal (default)
Syntax: Command syntax: AT+IFC=<Tx>,<Rx>
Command Possible Responses
AT+IFC=?
Note: Display valid parameter ranges. +IFC: (0-3),(0-2)
OK
Note: Valid parameter ranges
AT+IFC?
Note: Display current settings. +IFC: 2,2
OK
Note: Default values are 2,2 (hardware flow control).
AT+IFC=3
Note: Set Tx flow control to XON/XOFF. OK
Note: New Tx flow control value set.
AT+IFC=,1
Note: Set Rx flow control to XON/XOFF. OK
Note: New Rx flow control value set.
AT+IFC?
Note: Display current settings. +IFC: 3,1
OK
Note: Settings displayed.
AT+IFC=2,2
Note: Set Tx and Rx flow control to hardware. OK
Note: New Tx and Rx flow control values set.
Set DCD Signal &C
Description: This command controls the Data Carrier Detect (DCD) signal.
Syntax:
Command syntax: AT&C
Command Possible Responses
AT&C0
Note: DCD always on OK
Note: Command valid
AT&C1
Note: DCD matches state in accordance with
the specified service OK
Note: Command valid
AT&C2
Note: Wink indicator on channel disconnect OK
Note: Command valid