APPENDIX A. AT COMMANDS

AT\An

Maximum MNP block size

Default : 2

 

AT\A0

Sets maximum block size to 64 characters

 

 

AT\A1

Sets maximum block size to 128 characters

 

 

AT\A2

Sets maximum block size to 192 characters

 

 

AT\A3

Sets maximum block size to 256 characters

 

AT\Bn

Transmit break (n=1-9)

Default : 3

 

When this command is entered during a non-MNP connection, the

 

modem sends a break signal to the remote modem. The length of the

 

break is 100 times the n parameter value in milliseconds. If this

 

command is entered in MNP mode, the modem sends a link attention

 

PDU to the remote modem.

 

AT\Gn

Modem to modem flow control

Default :

0

 

AT\G0

Disables flow control (XON/XOFF)

 

 

 

AT\G1

Enables flow control (XON/XOFF)

 

 

AT\Jn

Enable DTE auto Rate Adjustment

Default :

0

 

\J0

Disables adjustment of DTE speed to match line speed

 

 

\J1

Enables adjustment of DTE speed to match line speed

 

AT\Kn

Break control

Default :

5

 

When a break is received from the DTE during data transfer, the

 

modem responds as follows:

 

 

 

AT\K0,2,4

Modem enters the online Command State without

 

 

sending a break to the remote modem

 

 

 

AT\K1

Modem clears the terminal and modem buffers and

 

 

sends a break to the remote modem

 

 

 

AT\K3

Modem does not clear the buffers but sends a break to

 

 

the remote modem

 

 

 

AT\K5

Modem sends a break to the remote modem in sequence

 

 

with any transmitted data

 

 

 

When the modem is in the online Command State

during a data

 

connection, the modem takes the following actions:

 

 

 

AT\K0,1

Modem clears the terminal buffers and sends a break to

 

 

the remote modem

 

 

 

AT\K2,3

Modem does not clear buffers but sends a break to the

 

 

remote modem

 

 

 

AT\K4,5

Modem sends a break in sequence with any transmitted

 

 

data

 

 

When a break is received from the DTE during a non-error correction mode, the modem takes the following action:

AT\K0,1 Modem clears the terminal buffers and sends a break to the local DTE

ACTIVE Professional External Modem User’s Manual

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