
TRENDWARE INTERNATIONAL, INC

TFM-144P

Card Type                    Fax, Modem (asynchronous)
Chip Set                     Unidentified
Maximum Modem 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.32, V.32bis
Fax Modulation Protocol      ITU-T V.17, V.21 ch2, V.27ter, V.29
Error Correction/Compression MNP2-5, V.42, V.42bis
Boot ROM                     Not available

                                                                      V2108

                         Proprietary AT Command Set

                          BIT-MAPPED REGISTER S14

  Format:             AT [cmds] S14=n [cmds]

  Default:            170

  Range:              0-239

  Unit:               Bit-mapped

  Description:        Controls echo, result codes and display, dial mode,
                      and answer/originate mode.

   Bit       Value                         Function

    0              0  On-line state character echo disabled

                  1   On-line state character echo enabled

    1              0  Command echo disabled

                  1   Command echo enabled

    2              0  Result codes disabled

                  1   Result codes enabled

    3              0  Display result codes in numeric format

                  1   Display result codes in verbose format

    4             0   Not used

    5              0  Tone dial enabled

                  1   Pulse dial enabled

    6              0  Result codes disabled/enabled as set by bit 2 or Qn

                  1   Result codes enabled in originating mode

    7              0  Answer mode enabled

                  1   Originate mode enabled

                          BIT-MAPPED REGISTER S21

  Format                 AT [cmds] S21=n [cmds]

  Default:               Unidentified

  Range:                 0-255

  Unit:                  Bit-mapped

  Description:           Selects jack type, CTS/DCD/DSR signals, low DTR
                         action, and the long space disconnect function.

    Bit       Value                          Function

     0               0   Selects RJ-11, RJ-41S, or RJ45S jack

                    1    Selects RJ-12 or RJ-13 jack

     1               0   User profile 0

                    1    User profile 1

     2               0   CTS follows RTS

                    1    CTS forced high

   4, 3             00   DTR signal ignored

                    01   Modem goes to command mode on low DTR

                    10   Modem disconnects on low DTR; Auto-Answer is
                         disabled.
                   11
                         Modem is initialized on low DTR

     5               0   DCD forced high

                    1    DCD normal

     6               0   DSR forced high

                    1    DSR normal

     7               0   Long space disconnect function disabled

                    1    Long space disconnect function enabled

                          BIT-MAPPED REGISTER S23

  Format                AT [cmds] S23=n [cmds]

  Default:              Unidentified

  Range:                0-191

  Unit:                 Bit-mapped

  Description:          Grants/denies remote digital loopback, controls
                        DTE rate and parity, and sets guard tone.

    Bit       Value                         Function

     0              0   Remote digital loopback denied

                   1    Remote digital loopback allowed

   3 - 1          000   Sets serial port speed to 0-300bps

                  001   Sets serial port speed to 600bps

                  010   Sets serial port speed to 1200bps

                  011   Sets serial port speed to 2400bps

                  100   Sets serial port speed to 4800bps

                  101   Sets serial port speed to 9600bps

                  110   Sets serial port speed to 19.2Kbps

                 111    Sets serial port speed to 38.4Kbps

   5, 4            00   Parity even

                   01   Not used

                   10   Parity odd

                  11    No Parity

   7, 6            00   Guard tone disabled

                   01   Guard tone 550Hz enabled

                  10    Guard tone 1800Hz enabled

                          BIT-MAPPED REGISTER S41

  Format           AT [cmds] S41=n [cmds]

  Default:         1

  Range:           0-7

  Unit:            Bit-mapped

  Description:     Selects compression, auto-retrain, flow control, and
                   MNP mode.

   Bit    Value                           Function

    0         0    Data compression disabled

              1    Data compression enabled

    1         0    Auto-retrain disabled

              1    Auto-retrain enabled

    2         0    Stream mode for MNP

              1    Block mode for MNP

   7-3             Not used

                          BIT-MAPPED REGISTER S40

  Format                 AT [cmds] S40=n [cmds]

  Default:               Unidentified

  Range:                 0-255

  Unit:                  Bit-mapped

  Description:           Controls power level and break handling; selects
                         MNP extended services, link negotiation, and
                         block size.

   Bit        Value                          Function

   1,0             00    Normal mode enabled

                   01    Normal mode enabled

                   10    MNP reliable mode enabled

                   11    Auto-reliable mode or MNP auto-reliable mode
                         enabled

  4, 3, 2         000    \K0

                  001    \K1

                  010    \K2

                  011    \K3

                  100    \K4

                  101    \K5

   6, 5            00    MNP block size is 64 characters

                   01    MNP block size is 128 characters

                   10    MNP block size is 192 characters

                   11    MNP block size is 256 characters

    7               0    Flow control disabled

                    1    Flow control enabled

                          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 and V.21 at 300 or 1200bps

          B1             Bell 212A and 103 at 300 or 1200bps



                                   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

          DL             Re-dial last number

          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^"            Call tone turned on

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

          D@             Wait for Quiet 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.

                           DATA SET READY (DSR)

  Type:          Configuration

  Format:        AT [cmds] &Sn [cmds]

  Description:   Selects DSR options

    Command                              Function

      &S0        DSR forced high

      &S1        DSR set to operate at EIA-232-D specifications

                              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=1          300bps

        S37=2          300bps

        S37=3          300bps

        S37=4          Reserved

        S37=5          1200bps

        S37=6          2400bps

        S37=7          Reserved

        S37=8          4800bps

        S37=9          9600bps

       S37=10          12.0Kbps

       S37=11          14.4Kbps

       S37=12          7200bps

                           DTR CHANGE THRESHOLD

  Type:           Register

  Format          AT [cmds] S25=n [cmds]

  Default:        5

  Range:          0-255

  Unit:           .01 second

  Description:    Sets maximum time a change in the DTR signal will be
                  ignored

            Note: This is the function of this register when &M1 is not
            set.

                             INACTIVITY TIMER

  Type:                  Register

  Format                 AT [cmds] S30=n [cmds]

  Default:               0

  Range:                 0-255

  Unit:                  .1 sec

  Description:           Maximum duration of DTE and DCE inactivity
                         allowed prior to initiating hang-up process.

  Note:                  S30=0 disables the timer and allows indefinite
                         inactivity.

                             INACTIVITY TIMER

  Type:                  Configuration

  Format:                AT [cmds] \Tn [cmds]

  Default:               0

  Range:                 0-42

  Unit:                  1 minute

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

                            NO CARRIER TIME-OUT

  Type:                  Register

  Format                 AT [cmds] S7=n [cmds]

  Default:               50

  Range:                 1-255

  Unit:                  1 second

  Description:           Maximum wait time the modem uses after dialing
                         to detect a carrier signal from the remote modem
                         for both originating and answering calls.

  Note:                  W dial modifier also uses S7 to set the maximum
                         time to wait.

                            PULSE DIALING RATIO

  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 (Europe)

      &P2        33/67ms at 20pps

                            REPORT INFORMATION

  Type:          Immediate

  Format:        AT [cmds] In [cmds]

  Description:   Displays information requested

    Command                              Function

       I0        Reports product code

       I1        Reports ROM checksum

       I2        Tests and reports ROM checksum

       I3        Reports revision level of firmware

       I4        Reports the capabilities of the product

                               RESULT CODES

  Type:          Configuration

  Format:        AT [cmds] Qn [cmds]

  Description:   Enables modem to send result codes to the DTE

    Command                              Function

       Q0        Result code sending enabled

       Q1        Result code sending disabled

       Q2        Result code sending enabled only if originating call

                         v.42bis Compression type

  Type:          Configuration

  Format:        AT [cmds] %Mn [cmds]

  Description:   Sets type of compression used in V.42bis mode

    Command                              Function

      %M0         Compression disabled

      %M1         Transmit compression enabled

      %M2         Receive compression enabled

      %M3         Bi-directional compression enabled

                         v.42bis dictionary reset

  Type:          Immediate

  Format:        AT [cmds] %P [cmds]

  Description:   Resets local and remote V.42bis Dictionaries

                          V.42bis dictionary size

  Type:          Configuration

  Format:        AT [cmds] %Dn [cmds]

  Description:   Sets the size of the dictionary used in V.42bis mode

    Command                              Function

      %D0         512

      %D1         1024

      %D2         2048

      %D3         4096

                       V.42bis Maximum string length

  Type:                  Configuration

  Format:                AT [cmds] %Sn [cmds]

  Default:               32

  Range:                 6-250

  Unit:                  Characters

  Description:           Sets the Maximum number of characters that can
                         be compressed into a word under V.42bis
                         compression

