TRENDWARE INTERNATIONAL, INC.

TFM - 336T PCMCIA

Card Type

Modem/Fax card

Chip Set

Unidentified

Maximum Modem Rate

33.6Kbps

Maximum Fax Rate

14.4Kbps

Data Modulation Protocol

Bell 103A/212A

ITU-T V34, V.32bis, V.32, V.22bis, V.22, V.21

Fax Modulation Protocol

ITU-T V.17, V.27ter, V.29, V21 CH.2

Error Correction/Compression

MNP5, V.42, V.42bis

Fax Class

Class I & II

Data Bus

PCMCIA

54689

SUPPORTED COMMAND SET

Basic AT Commands

AT, A/

A, E, H, M, P, Q, T, V, W, X, Z

&C, &F, &G, &R, &T, &V, &W, &Y, &Z

Extended AT Commands

\A, \C, \G, \J, \K, \V, \X

%A, %G

-J

"H

S Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S30

 

Note: See MHI Help File for full command documentation.

Proprietary AT Command Set

AUTO-MODE DETECTION

Type:

Configuration

Format:

AT [cmds] Nn [cmds]

Description:

Selects various options for the automatic detection and negotiation of protocols during the handshake process if the modem is communicating with a remote modem of dissimilar speed.

Command

Function

N0

When originating or answering; handshake only at the line speed designated by the S37 register

í N1

When originating or answering; handshake at the line speed designated by the S37 register. Modem can shift to a lower speed if necessary

AUTO-SYNC

Type:

Configuration

Format:

AT [cmds] &Jn [cmds]

Description:

Dummy command for autosync compatibility

Command

Jack Type

&J0

Send OK to DTE

&J1

Send OK to DTE

COMMUNICATIONS MODE

Type:

Configuration

Format:

AT [cmds] &Mn [cmds]

Description:

Selects communications mode

Command

Mode

&M0

Asynchronous mode

&M4

Hayes asynchronous mode

COMMUNICATION PROTOCOLS

Type:

Configuration

Format:

AT [cmds] Bn [cmds]

Description:

Selects the communication protocol for data calls

Note: The B command allows the simultaneous selection of more than one suffix, enabling multiple protocols.

Command

Protocol

B0

ITU-T V.22 at 1200bps or V.21 at 300bps

í B1

Bell 212A at 1200bps or Bell 103 at 300bps

B2

V.23 at 1200 receiving, 75bps transmitting in originate mode; 75bps receiving, 1200bps transmitting in answer mode

B3

V.23 at 75 receiving, 1200bps transmitting in originate mode; 1200bps receiving, 75bps transmitting in answer mode

DATA SET READY (DSR)

Type:

Configuration

Format:

AT [cmds] &Sn [cmds]

Description:

Selects DSR options

Command

Function

í &S0

DSR forced high

&S1

DSR high only while modem is handshaking or connected

DATA TERMINAL READY (DTR)

Type:

Configuration

Format:

AT [cmds] &Dn [cmds]

Description:

Selects modem response to DTR

Command

Function

&D0

DTR is ignored (assumed on)

&D1

Modem goes to command mode after DTR goes is off

í &D2

Modem goes to command mode and disconnects (hangs up) after DTR goes off; Auto-Answer is disabled.

&D3

Modem is initialized after DTR goes off

DIAL

Type:

Immediate

Format:

AT [cmds] D<#> [cmds]

Description:

Dials telephone number according to any modifiers included in the string

Note:

Any combination of modifiers can be used to produce the desired dial functions in sequence.

Command

Function

DP

Pulse dialing enabled

DR

Answer mode enabled; originate mode disabled following handshake initiation.

DS=n

Dial stored telephone number n

DT

Tone dialing enabled/Pulse dialing disabled

DW

Dialing resumed following dial tone detection

D,

Dialing paused for amount of time specified in S8 register

D!

Flash function initiated. Modem commanded to go off-hook for specified time before returning on-hook.

D@

Wait for Quite Answer function enabled. Modem waits until a "quiet answer," a ring-back signal followed by silence up to the time specified in S7, is received prior to executing the rest of the dial string.

D;

Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command.

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] &Kn [cmds]

Description:

Enables flow control options

Command

Function

&K0

Flow control disabled

í &K3

RTS/CTS flow control enabled

&K4

XON/XOFF flow control enabled

ON-LINE

Type:

Immediate

Format:

AT [cmds] On [cmds]

Description:

Controls on-line command (data transmission) state options.

Note: The O command must be placed at the end of the command string.

Command

Function

O0

On-line command mode with no retraining enabled

O1

On-line command mode with retraining enabled

O3-O14

Force modem to a new rate that is user defined by S62 regisiter

PULSE DIALING RATIO (INTERNATIONAL VERSION)

Type:

Configuration

Format:

AT [cmds] &Pn [cmds]

Description:

Selects pulse dial make/break ratio

Command

Function

&P0

39/61ms at 10pps (North America)

&P1

33/67ms at 10pps

PULSE DIALING RATIO (JAPAN VERSION)

Type:

Configuration

Format:

AT [cmds] &Pn [cmds]

Description:

Selects pulse dial make/break ratio

Command

Function

&P0

33/67ms at 10pps

&P1

33/67ms at 20pps

V.32 - AUTO-RETRAIN

Type:

Configuration

Format:

AT [cmds] &Bn [cmds]

Description:

Controls auto-retrain function if poor line quality is detected

Command

Function

&B0

Auto-retrain disabled modem hangs-up

í &B1

Auto-retrain enabled if line quality is poor

&B2

Auto-retrain disabled modem does not hang-up, tolerates any line

Extended AT Command Set

BREAK TYPE

Type:

Configuration

Format:

AT [cmds] \Kn [cmds]

Description:

Configures action of break signal

Command

Break to DTE through serial port during NORMAL or MNP mode

Break from DTE during DIRECT mode

\K0

Online command mode enabled, send no break to remote modem

Send break to remote modem, online command mode enabled

\K1

Break sent to remote modem and buffered cleared

Send break to remote modem, online command mode enabled

\K2

Online command mode enabled, send no break to remote modem

Send break to remote modem

\K3

Send break to remote modem immediately

Send break to remote modem, online command mode enabled

\K4

Online command mode enabled, send no break to remote modem

Send break to remote modem

\K5

Send break with transmitted data

Send break to remote modem

BREAK TYPE (CONT.)

Type:

Configuration

Format:

AT [cmds] \Kn [cmds]

Description:

Configures action of break signal

Command

Break from DTE during NORMAL or MNP mode

Break received from remote modem during NORMAL mode

\K0

Buffers cleared, break sent to DTE

Buffers cleared, break sent to DTE

\K1

Buffers cleared, break sent to DTE

Buffers cleared, break sent to DTE

\K2

Break sent immediately to remote modem

Break sent immediately to DTE

\K3

Break sent immediately to remote modem

Break sent immediately to DTE

\K4

Break sent with received data to remote modem

Break sent with received data to the DTE

\K5

Break sent with received data to remote modem

Break sent with received data to the DTE

 

COMPRESSION

Type:

Configuration

Format:

AT [cmds] %Cn [cmds]

Description:

Selects data compression

Command

Function

%C0

Data compression disabled

í %C1

MNP5 enabled

CONNECT MODE

Type:

Configuration

Format:

AT [cmds] \Nn [cmds]

Description:

Controls the type of connection the modem will operate in

Command

Function

\N0

Normal mode enabled

\N1

Direct mode enabled

\N2

Reliable mode enabled

í \N3

Auto-reliable mode enabled

\N4

V.42 reliable mode enabled

FIRMWARE VERSION

Type:

Configuration

Format:

AT [cmds] -Vn [cmds]

Range:

Unidentified

Unit:

ASCII

Description:

Displays firmware version number

FLOW CONTROL TYPE

Type:

Configuration

Format:

AT [cmds] \Qn [cmds]

Description:

Sets type of flow control used by modem

Command

Function

\Q0

Flow control disabled

\Q1

Bi-directional XON/XOFF flow control enabled

\Q2

CTS flow control by DCE enabled

\Q3

Bi-directional RTS/CTS flow control enabled

INACTIVITY TIMER

Type:

Configuration

Format:

AT [cmds] \Tn [cmds]

Range:

0-90

Unit:

1 second

Description:

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

S (status) Registers

DCE LINE SPEED

Type:

Register

Format

AT [cmds] S37=n [cmds]

Description:

Sets the maximum allowable data exchange rate attempted during handshake process.

Command

Function

S37=0

Speed of last connection

S37=3

300bps

S37=5

1200bps

S37=6

2400bps

S37=7

4800bps

S37=8

7200bps

S37=9

9600bps

S37=10

12Kbps

S37=11

14.4Kbps

S37=12

16.8Kbps

S37=13

19.2Kbps

S37=14

21.6bps

S37=15

24.0Kbps

S37=16

26.4Kbps

S37=17

28.8Kbps

S37=18

33.6Kbps

DTE RATE STATUS

Type:

Register

Format

AT [cmds] S62=n [cmds]

Description:

Reports DTE rate status

Command

Function

S62=0

300bps

S62=1

600bps

S62=2

1200bps

S62=3

2400bps

S62=4

4800bps

S62=5

9600bps

S62=6

7200bps

S62=7

12Kbps

S62=8

14.4Kbps

S62=9

16.8Kbps

S62=10

19.2Kbps

S62=11

21.6bps

S62=12

24.0Kbps

S62=13

26.4Kbps

S62=14

28.8Kbps

S62=15

38.4Kbps

S62=16

57.6Kbps

S62=17

115.2Kbps

DTE SPEED

Type:

Register

Format

AT [cmds] S72=n [cmds]

Description:

Selects DTE speed during data transfer

Command

Function

S72=0

Last auto-baud speed

S72=1

300bps

S72=2

600bps

S72=3

1200bps

S72=4

2400bps

S72=5

4800bps

S72=6

9600bps

S72=7

7200bps

S72=8

12Kbps

S72=9

14.4Kbps

S72=10

16.8Kbps

S72=11

19.2Kbps

S72=12

21.6bps

S72=13

24.0Kbps

S72=14

26.4Kbps

S72=15

28.8Kbps

S72=16

38.4Kbps

S72=17

57.6Kbps

S72=18

115.2Kbps

TRANSMISSION LEVEL (JAPAN VERSION)

Type

Register or Configuration

Format

AT [cmds] S64=n [cmds]

Range

9-20

Unit

-1 dBm

Description

Sets the signal level for transmission

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