
Chapter 10 – V24-V25 Commands
Multi-Tech Systems, Inc. CDMA Wireless AT Commands (PN S000294J)
60
Set DTR Signal &D
Description:
This command controls the interpretation of the Data Terminal Ready (DTR) signal on the module DATA
port. The factory default value is 2. The AT&F command restores the value that was active when the last
AT&W command was used .
Values:
<n>
0
The DTR signal is ignored.
1
Enter online command state following ON-to-OFF transition of circuit 108/2
2
Enter command state following ON-to-OFF transition of circuit 108/2.
Syntax:
Command syntax:
AT&D<n>
Command
Possible Responses
AT&D0
Note: The DTR signal is ignored
OK
Note: Command valid
AT&D1
Note: Enter online command state following ON-to-OFF transition of circuit 108/2
OK
Note: Command valid
AT&D2
Note: Enter command state following ON-to-OFF transition of circuit 108/2
OK
Note: Command valid
Set DSR Signal &S
Description:
This commands controls the Data Set Ready (DSR) signal on the module DATA port.
Values:
<n>
0
The DSR signal is always on. (Default)
1
The DSR signal is always off.
Syntax:
Command syntax:
AT&S<n>
Command
Possible Responses
AT&S0
Note: The DSR signal always on.
OK
Note: Command valid
AT&S1
Note: The DSR signal is always off.
OK
Note: Command valid
Back to Online Mode O
Description:
If a data call is active and the MS is in command mode (+++ command issued; data call suspended), the
ATO command causes the module to exit command mode and resume online data mode.
Values:
<n>
0
Result codes returned. (Default)
1
Result codes suppressed.
Syntax:
Command syntax:
ATO
Command
Possible Responses
ATO
Note: Return to online mode from offline mode
OK
ATO
Note: Return to online mode from offline mode
NO CARRIER
Note: Not in a call
Result Code Suppression Q
Description:
This command is used to control the suppression of AT command result codes.
Syntax:
Command syntax:
ATQ <n>
Command
Possible Responses
ATQ0
Note: Result codes are returned
OK
Note: Command valid
ATQ1
Note: Result codes are suppressed
(none)
Note: No response