Chapter 11 – V24-V25 Commands

Set DTR Signal &D

Description: This commands controls the Data Terminal Ready (DTR) signal.

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

OK

 

Note: The DTR signal is ignored

Note: Command valid

 

AT&D1

OK

 

Note: Enter online command state following ON-to-OFF transition of circuit 108/2

Note: Command valid

 

AT&D2

OK

 

Note: Enter command state following ON-to-OFF transition of circuit 108/2

Note: Command valid

Set DSR Signal &S

Description: This commands controls the Data Set Ready (DSR) signal.

Values:

<n>

 

 

0: The DSR signal is always on.

 

 

1: The DSR signal is always off.

 

Syntax:

Command syntax: AT&S<n>

 

 

Command

Possible Responses

 

AT&S0

OK

 

Note: The DSR signal always on.

Note: Command valid

 

AT&S1

OK

 

Note: The DSR signal is always off.

Note: Command valid

Back to Online Mode O

Description: If a connection has been established and the MS is in command mode, this command allows you to return to online data mode.

Syntax:

Command syntax: ATO

 

 

Command

Possible Responses

 

ATO

OK

 

Note: Return to online mode from offline mode

 

 

ATO

NO CARRIER

 

Note: Return to online mode from offline mode

Note: Not in a call

Result Code Suppression Q

Description: This command determines whether the mobile equipment sends result codes or not.

Syntax:

Command syntax: ATQ

 

 

Command

Possible Responses

 

ATQ0

OK

 

Note: Return result codes

Note: Command valid

 

ATQ1

(none)

 

Note: Result codes are suppressed and not transmitted

Note: No response

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

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Multi-Tech Systems CDMA Wireless Modem manual Set DTR Signal &D, Set DSR Signal &S, Back to Online Mode O