PIONEERPOS G24-LC manual Circuit 109 Behavior, 87 &K Parameters, At&K?, OK AT&K4

Hardware Information

condition. The RTS line complements the CTS line. The G24-L puts the CTS line in an active condition to tell the terminal that it is ready to receive the data. Likewise, if the G24-L is unable to receive data, it places the CTS line in an inactive condition.

Command Type	Syntax	Response/Action
Set	AT&K<param>	OK
Read	AT&K?	&K: <param>
Test	AT&K=?	&K: (list of supported
		<param>s)

The following table shows the &K parameters.

		Table 3-87: &K Parameters
<Parameter>		Description
<param>	0	Disable all terminal/G24-L flow control
	3	Enable CTS/RTS terminal/G24-L flow control
	4	Enable Xon/Xoff terminal/G24-L flow control
	5	Enable Xon/Xoff terminal/G24-L flow control
	6	Enable CTS/RTS terminal/G24-L flow control
	The default value is 3.

Example

AT&K? &K: 3

OK AT&K4

OK

&C, Circuit 109 Behavior

This parameter determines how the state of the DCD line relates to the detection of the received line signal from the distant end. Changing the parameters will take effect immediately in both the command and online command states.

The DCD line is an output line that indicates the following:

•In Circuit Switch Data mode an active (low) indicates that a valid carrier (data signal) was detected by the G24-L (CONNECT message is received), and inactive (high) indicates idle. The AT&C command always puts the DCD command ON, when set to 0. If the AT&C command is set to 1 then the "+++" escape command sets the DCD signal to an inactive state and the ATO command is set to active. The AT&C set to 2 sets the DCD signal OFF.

•In GPRS mode, the DCD line indicates the PDP context status. PDP context active sets the DCD to active (low); PDP context inactive sets the DCD to inactive (high). The DCD is activated only when the PDP context is achieved. The DCD is de-activated when the PDP context is off.

3-136 G24-L AT Commands Reference Manual April 15, 2008