Multi-Tech Systems CDMA Wireless Modem manual Fixed DTE Rate +IPR, DTE-DCE Character Framing +ICF

Chapter 11 – V24-V25 Commands

CHAPTER 11 – V.24-V.25 COMMANDS

Refer to ITU-T Recommendation V.25 per specification for more details on the following commands.

Fixed DTE Rate +IPR

Description: This command specifies the data rate at which the DCE will accept commands.

Syntax: Command syntax: AT+IPR

Command	Possible Responses
AT+IPR?	+IPR: 9600
Note: Read syntax.	OK
	Note: Current rate is 9600 bps
AT+IPR=?	+IPR: (0,1200,2400,4800,9600,19200), (45,50,75,
Note: List of supported <rate> values,[(list	110,150,300,600,38400,57600,115200,230400)
of fixed-only <rate> values)]	OK
	Note: Possible value (*)
AT+IPR=38400	OK
Note: Disable autobaud and set rate to
38400 bps
AT+IPR=0	OK
Note: Enable autobaud

(*)the first set of values indicates the range of auto-detectable speeds. The second set of values indicates all possible speeds that can be used by the DCE. The DCE supports Autobaud based on the data sent from the DTE.

DTE-DCE Character Framing +ICF

Description: This command is used to determine the local serial port start-stop (asynchronous) character framing that the DCE uses.

Values:	<format>
	0: Autodetect (Not supported)
	1: 8 Data 2 Stop (Not supported)
	2: 8 Data 1 Parity 1 Stop (Not supported)
	3: 8 Data 1 Stop (Supported)
	4: 7 Data 2 Stop (Not Supported)
	5: 7 Data 1 Parity 1 Stop (Not Supported)
	6: 7 Data 1 Stop (Not Supported)
	<parity>
	0: Odd (Supported)
	1: Even (Supported)
	2: Mark (Supported)
	3: None (Supported)
	Note: The Rm interface is only supported at 8 data bits, No Parity, 1 stop bit. ERROR is
	returned for other formats.
Syntax:	Command syntax: AT+ICF= <format>, <parity>
	Command	Possible Responses
	AT+ICF=3,3	OK
	Note: Set values.	Note: New values set
	AT+ICF?	+ICF: 3,3
	Note: Display current settings.	OK
		Note: Current values
	AT+ICF=?	+ICF: (3-3),(0-3)
	Note: Display valid parameter ranges.	OK
		Note: Possible values

Multi-Tech Systems, Inc. CDMA Wireless AT Commands - PN S000294C 76