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# 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 Bell 103A/212A
Protocol
ITU-T V34, V.32bis, V.32, V.22bis,
V.22, V.21
Fax Modulation ITU-T V.17, V.27ter, V.29, V21 CH.2
Protocol
Error MNP5, V.42, V.42bis
Correction/Compression
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 | Break from DTE during |
| | serial port during | DIRECT mode |
| | NORMAL or MNP mode | |
|------------+----------------------+------------------------|
| \K0 | Online command mode | Send break to remote |
| | enabled, send no | modem, online command |
| | break to remote | mode enabled |
| | modem | |
|------------+----------------------+------------------------|
| \K1 | Break sent to remote | Send break to remote |
| | modem and buffered | modem, online command |
| | cleared | mode enabled |
|------------+----------------------+------------------------|
| \K2 | Online command mode | Send break to remote |
| | enabled, send no | modem |
| | break to remote | |
| | modem | |
|------------+----------------------+------------------------|
| \K3 | Send break to remote | Send break to remote |
| | modem immediately | modem, online command |
| | | mode enabled |
|------------+----------------------+------------------------|
| \K4 | Online command mode | Send break to remote |
| | enabled, send no | modem |
| | break to remote | |
| | modem | |
|------------+----------------------+------------------------|
| \K5 | Send break with | Send break to remote |
| | transmitted data | modem |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BREAK TYPE (CONT.) |
|------------------------------------------------------------|
| Type: | Configuration |
|------------------------+-----------------------------------|
| Format: | AT [cmds] \Kn [cmds] |
|------------------------+-----------------------------------|
| Description: | Configures action of break signal |
|------------------------------------------------------------|
| Command | Break from DTE | Break received from |
| | during NORMAL or | remote modem during |
| | MNP mode | NORMAL mode |
|------------+--------------------+--------------------------|
| \K0 | Buffers cleared, | Buffers cleared, break |
| | break sent to DTE | sent to DTE |
|------------+--------------------+--------------------------|
| \K1 | Buffers cleared, | Buffers cleared, break |
| | break sent to DTE | sent to DTE |
|------------+--------------------+--------------------------|
| \K2 | Break sent | Break sent immediately |
| | immediately to | to DTE |
| | remote modem | |
|------------+--------------------+--------------------------|
| \K3 | Break sent | Break sent immediately |
| | immediately to | to DTE |
| | remote modem | |
|------------+--------------------+--------------------------|
| \K4 | Break sent with | Break sent with received |
| | received data to | data to the DTE |
| | remote modem | |
|------------+--------------------+--------------------------|
| \K5 | Break sent with | Break sent with received |
| | received data to | data to the DTE |
| | remote modem | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |