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KEEPINTOUCH CARD MODEM 3760-B2

AT&T PARADYNE

KEEPINTOUCH CARD MODEM 3760-B2

Modem Type

Data (synchronous/asynchronous)/Fax

Maximum Data Rate

14.4Kbps

Maximum Fax Rate

14.4Kbps

Data Bus

PCMCIA Type II

Fax Class

Class I & II

Data Modulation Protocol

Bell 103A/212A

ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis

Fax Modulation Protocol

ITU-T V.17, V.21CH2, V.27ter, V.29

Error Correction/Compression

MNP5, V.42, V.42bis

Proprietary AT Command Set

V1403

AUTO-NEGOTIATE

Type:

Configuration

Format:

AT %Gn

Example:

AT %G1 <CR>

Description:

Selects whether the modem will renegotiate speeds according to signal quality.

Command

Function

%G0

Auto-negotiate disabled.

%G1

Auto-negotiate enabled.

AUTO-RELIABLE FALLBACK CHARACTER

Type:

Register

Format:

AT [cmds] %An [cmds]

Example:

AT%A20<CR>

Default:

13

Range:

0-127

Unit:

ASCII

Description:

Sets the character used as the auto-reliable fallback character. %A0 will disable this function.

AUTO-RELIABLE TIME BUFFER CONFIGURATION

Type:

Configuration

Format:

AT [cmds] \Cn [cmds]

Example:

AT \C1 &W<CR>

Description:

Controls the handling of incoming data during auto-reliable time period.

Command

Function

\C0

Data is discarded.

\C1

Data is buffered.

\C2

Data is discarded, modem returns to normal mode on receiving auto-reliable fallback character.

AUTO-RETRAIN

Type:

Configuration

Format:

AT %En

Example:

AT %E1 <CR>

Description:

Selects auto-retrain mode.

Command

Function

%E0

Auto-retrain disabled.

%E1

Auto-retrain enabled.

BREAK SEND

Type:

Configuration

Format:

AT [cmds] \Bn [cmds]

Example:

AT \B50 O<CR>

Default:

0

Range:

0-9

Unit:

.1 second

Description:

Sends break to modem.

BREAK TYPE

Type:

Configuration

Format:

AT [cmds] \Kn [cmds]

Example:

AT \K1 <CR>

Description:

Configures action of break signal.

Command

Break from DTE

Reliable/Normal mode

Break from DTE

Direct mode

Modem receives \B

Break from remote modem

\K0

Enter command mode, do not send break to remote modem.

Send break to remote modem immediately, then enter command mode.

Buffers cleared and break sent to remote modem.

Buffers cleared and break sent to DTE.

\K1

Buffers cleared and break sent to remote modem.

Send break to remote modem immediately.

Buffers cleared and break sent to remote modem.

Buffers cleared and break sent to DTE.

\K2

Enter command mode, do not send break to remote modem.

Send break to remote modem immediately, then enter command mode.

Send break to remote modem immediately.

Send break to DTE immediately.

\K3

Send break to remote modem immediately.

Send break to remote modem immediately.

Send break to remote modem immediately.

Send break to DTE immediately.

\K4

Enter command mode, do not send break to remote modem.

Send break to remote modem immediately, then enter command mode.

Send break to remote modem with transmitted data.

Break sent with received data to the DTE.

\K5

Send break with transmitted data.

Send break to remote modem immediately.

Send break to remote modem with transmitted data.

Break sent with received data to the DTE.

CALLING TONE

Type:

Configuration

Format:

AT [cmds] -Cn [cmds]

Example:

AT -C1 DT555-1212<CR>

Description:

Controls the transmission of the calling tone while dialing.

Command

Function

-C0

Calling tone disabled.

-C1

Calling tone enabled.

COMPRESSION

Type:

Configuration

Format:

AT %Cn

Example:

AT *EC0 %C1 *AP0<CR>

Description:

Selects data compression.

Command

Function

%C0

Data compression disabled.

%C1

Data compression enabled.

CONNECT MODE

Type:

Configuration

Format:

AT [cmds] \Nn [cmds]

Example:

AT \N1 DT555-1212<CR>

Description:

Sets connect mode.

Command

Function

\N0

Normal mode enabled.

\N1

Direct mode enabled.

\N2

MNP mode only enabled.

\N3

LAP-M mode with fallback to MNPl mode enabled.

\N4

V.42 or disconnect enabled.

EXTENDED RESULT CODES

Type:

Configuration

Format:

AT [cmds] \Vn [cmds]

Example:

AT \V1 %C1<CR>

Description:

Selects extended result codes.

Command

Function

\V0

Extended result codes disabled.

\V1

MNP extended result codes enabled.

\V2

V.42 extended result codes enabled.

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] \Gn [cmds]

Example:

AT G1 &M0<CR>

Description:

Selects modem port flow control.

Command

Function

\G0

Flow control disabled.

\G1

Flow control enabled.

FLOW CONTROL TYPE

Type:

Configuration

Format:

AT [cmds] \Qn [cmds]

Example:

AT \Q5<CR>

Description:

Sets type of flow control used by modem.

Command

Function

\Q0

Flow control disabled.

\Q1

Bidirectional XON/XOFF flow control enabled.

\Q2

CTS flow control by DTE enabled.

\Q3

Bidirectional CTS/RTS flow control enabled.

INACTIVITY TIMER

Type:

Register

Format:

AT [cmds] \Tn [cmds]

Example:

AT\T20<CR>

Default:

0

Range:

0-90

Unit:

1 minute

Description:

Sets the length of time that the modem does not receive information before it disconnects.

INACTIVITY TIMER

Type:

Register

Format:

AT [cmds] S90=n [cmds]

Example:

AT S90=20<CR>

Default:

0

Range:

0-255

Unit:

1 minute

Description:

Sets the length of time that the modem does not receive information before it disconnects.

LOCK SERIAL PORT

Type:

Configuration

Format:

AT [cmds] \Jn [cmds]

Example:

AT %L3 %B14 \J0<CR>

Description:

Sets operation of serial port speed.

Command

Function

\J0

Serial speed locked.

\J1

Serial speed follows connect speed.

MAXIMUM BLOCK SIZE FOR TRANSMISSION

Type:

Configuration

Format:

AT [cmds] \An [cmds]

Example:

AT \A3 %C1<CR>

Description:

Sets the maximum transmittable block size.

Command

Function

\A0

MNP block size is 64 characters.

\A1

MNP block size is 128 characters.

\A2

MNP block size is 192 characters.

\A3

MNP block size is 256 characters.

REPORT INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Example:

AT I3 &V1 %V<CR>

Description:

Displays modem properties.

Command

Function

I0

Reports product code

I1

Reports firmware version in short form.

I2

Reports firmware checksum result.

I3

Reports device set name.

REPORT SIGNAL QUALITY

Type:

Immediate

Format:

AT %Q

Example:

AT %Q <CR>

Description:

Reports the quality of the current signal.

Value

Meaning

0

Signal quality is good.

1

Signal quality is fair.

2

Signal quality is poor.

3

Loss of equalization has occurred.

SLEEP TIMER

Format

AT [cmds] S30=n [cmds]

Example:

ATS30=40<CR>

Default:

10

Range:

0 - 90

Unit:

1 second

Description:

Maximum duration of DTE and DCE inactivity allowed prior to initiating low-power sleep mode.

V.42 HANDSHAKE

Type:

Configuration

Format:

AT -Jn

Example:

AT -J1 "H1<CR>

Description:

Selects whether the modem will negotiate V.42 mode.

Command

Function

-J0

V.42 negotiation disabled.

-J1

V.42 negotiation enabled.

V.42bis MODE

Type:

Configuration

Format:

AT "Hn

Example:

AT -J1 "H1<CR>

Description:

Selects V.42bis operation.

Command

Function

"H0

V.42bis disabled.

"H1

V.42bis enabled on transmit only.

"H2

V.42bis enabled on receive only

"H3

V.42bis enabled

V.42bis WORD LENGTH

Type:

Configuration

Format:

AT [cmds] "On [cmds]

Example:

AT"O24<CR>

Default:

32

Range:

6-250

Unit:

1 character

Description:

Sets length of V.42bis word.

XON/XOFF PASS-THROUGH

Type:

Configuration

Format:

AT [cmds] \Xn [cmds]

Example:

AT \X7 O<CR>

Description:

Selects whether XON/XOFF signals are sent to remote modem.

Command

Function

\X0

XON/XOFF signals trapped by local modem.

\X1

XON/XOFF passed through local modem.