
E-TECH RESEARCH, INC.

C288MX PCMCIA

Card Type                    Modem (asynchronous)
Chipset                      Unidentified
Maximum Data Rate            28.8Kbps
Maximum Fax Rate             14.4Kbps
Data Bus                     PCMCIA Type II
Fax Class                    Class I & II
Data Modulation              Bell 103A/212A

                             ITU-T V.21, V.22, V.22bis, V.32, V.32bis,
                             V.34

                             AT&T V.32terbo
Fax Modulation               ITU-T V.17, V.21CH2, V.27ter, V.29
Error Correction/Compression MNP5, V.42, V.42bis

                                                                      53134

                        SUPPORTED STANDARD COMMANDS

                             Basic AT Commands

  +++, comma, A/

  A, B, D, E, H, L, M, N, P, Q, T, V, W, X, Y, Z

  &C, &D, &F, &G, &K, &L, &R, &S, &T, &V, &W, &Y, &Z

                           Extended AT Commands

  \A, \B, \C, \G, \J, \K, \N, \Q, \T, \V, \X

  %A, %C, %G

                            Special AT Commands

  "H, -J, "N, "O

                                S-Registers

  S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S22, S25,
  S26, S27, S30

            Note: See MHI documentation for complete information.

            The functions of the O command and the S42 and S47 registers
            are unidentified.

  UNIDENTIFIED COMMANDS

   Command      Default

      O           N/A

     S42       Read-only

                         Proprietary AT Command Set

                     AUTO-RELIABLE FALLBACK CHARACTER

  Type:                Register

  Format:              AT [cmds] S43=n [cmds]

  Default:             Read-only

  Range:               0-127

  Unit:                ASCII

  Description:         Displays the ASCII value character used as the
                       auto-reliable fallback character.

                  AUTO-RELIABLE TIME BUFFER CONFIGURATION

  Type:                  Register (read-only)

  Format:                AT [cmds] S48? [cmds]

  Description:           Displays information regarding the handling of
                         incoming data during auto-reliable time period.

         Value                               Meaning

           0             Data is discarded.

           1             Data is buffered for 4 seconds or 200
                         characters.

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

                          BIT-MAPPED REGISTER S44

  Format:            AT [cmds] S44=n [cmds]

  Default:           6

  Range:             0 - 23

  Description:       Controls V.42bis and auto-fallback/fall-forward.

     Bit      Value                         Function

      0             0  V.42bis enabled.

                   1   V.42bis disabled.

    2, 1           00   V.42bis disabled.

                   01   V.42bis enabled on transmit only.

                   10   V.42bis enabled on receive only.

                  11    V.42bis enabled.

      3            0    Not used.

      4             0   Auto-fallback/fall-forward disabled.

                   1    Auto-fallback/fall-forward enabled.

                          BIT-MAPPED REGISTER S51

  Format:            AT [cmds] S51? [cmds]

  Default:           Read-only

  Range:             0 - 115

  Description:       Controls flow control, serial port speed, and
                     XON/XOFF trapping.

     Bit       Value                        Function

    1, 0           00   Flow control disabled.

                   01   Bidirectional XON/XOFF flow control enabled.

                   10   CTS flow control by DCE enabled.

                  11    Bidirectional RTS/CTS flow control enabled.

    3, 2          00    Not used.

      4             0   Modem-to-modem flow control disabled.

                   1    Modem-to-modem flow control enabled.

      5             0   Serial port speed locked.

                   1    Serial port speed follows connect speed.

      6             0   XON/XOFF signals trapped by local modem.

                   1    XON/XOFF passed through local modem.

                          BIT-MAPPED REGISTER S54

  Format:            AT [cmds] S54=n [cmds]

  Default:           Unidentified

  Range:             Unidentified

  Description:       Controls extended result codes.

     Bit       Value                        Function

    1 - 0        N/A    This function is unidentified.

    6 - 2       00000    Not used.

      7              0   Error correction and compression extended result
                         codes disabled.
                    1
                         Error correction extended result codes enabled.

                                BREAK TYPE

  Type:                      Register (read-only)

  Format:                    AT [cmds] S52? [cmds]

  Description:               Returns a number indicating the modems
                             action on a break signal.

     Value        Break from DTE     Modem receives \B    Break received
                                                           from remote
                                                              modem

       0          Online command     Break sent to       Buffers cleared,
                  mode enabled,      remote modem and    break sent to
                  send no break to   buffered cleared.   DTE.
                  remote modem.

       1          Break sent to      Break sent to       Buffers cleared,
                  remote modem and   remote modem and    break sent to
                  buffered           buffered cleared.   DTE.
                  cleared.

       2          Online command     Send break to       Break sent
                  mode enabled,      remote modem        immediately to
                  send no break to   immediately.        DTE.
                  remote modem.

       3          Send break to      Send break to       Break sent
                  remote modem       remote modem        immediately to
                  immediately.       immediately.        DTE.

       4          Online command     Send break with     Break sent with
                  mode enabled,      transmitted data.   received data to
                  send no break to                       the DTE.
                  remote modem.

       5          Send break with    Send break with     Break sent with
                  transmitted        transmitted data.   received data to
                  data.                                  the DTE.

                               CONNECT MODE

  Type:             Register, read-only

  Format:           AT [cmds] S53? [cmds]

  Description:      Returns a value indicating the type of connection the
                    modem will make.

       Value                               Meaning

         0          Normal mode enabled

         1          Direct mode enabled

         2          MNP reliable mode enabled

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

         4          V.42 auto-reliable mode or MNP auto-reliable mode
                    enabled

         5          V.42 reliable mode enabled

                            DISPLAY INFORMATION

  Type:          Immediate

  Format:        AT [cmds] In [cmds]

  Description:   Displays information requested about the modem.

    Command                              Function

       I0        Displays product identification code.

       I1        Displays country code.

       I2        Displays OEM string.

       I4        Displays EPROM type.

       I5        Displays DSP chip version.

       I9        Displays flash ROM checksum.

                           EXTENDED RESULT CODES

  Type:                   Register

  Format:                 AT [cmds] S41? [cmds]

  Description:            Displays selection of which extended result
                          codes will be displayed.

         Value                               Meaning

           0              Enables CONNECT result codes to report DTE
                          speed. If S95=0, then all extended connection
                          result codes are disabled.

           1              Enables CONNECT result codes to report DTE
                          speed. If S95=0, then all CARRIER and PROTOCOL
                          extended result codes are enabled.

           2              Enables CONNECT result codes to report DCE
                          speed. If S95=0, then all extended result codes
                          are disabled.

                               HDLC ADDRESS

  Type:          Register

  Format:        AT [cmds] S20=n [cmds]

  Default:       0

  Range:         0-255

  Unit:          1 ASCII character

  Description:   Sets the HDLC address and BSC character.

                                LINE SPEED

  Type:                 Register (read-only)

  Format                AT [cmds] S37? [cmds]

  Description:          Displays the maximum allowable data exchange rate
                        attempted during handshake process.

       Command                              Function

        S37=0           Speed of last command.

        S37=3           Connect at 300bps.

        S37=5           Connect at 1200bps.

        S37=6           Connect at 2400bps.

        S37=7           Connect at 4800bps.

        S37=8           Connect at 7200bps.

        S37=9           Connect at 9600bps.

        S37=10          Connect at 12Kbps.

        S37=11          Connect at 14.4Kbps.

        S37=12          Connect at 16.8Kbps.

        S37=13          Connect at 19.2Kbps.

        S37=14          Connect at 21.6Kbps.

        S37=15          Connect at 24Kbps.

        S37=16          Connect at 26.4Kbps.

        S37=17          Connect at 28.8Kbps.

                          LOCAL SERIAL PORT SPEED

  Type:           Register (read-only)

  Format:         AT [cmds] S62? [cmds]

  Description:    Returns a value indicating the speed of the local
                  serial port.

      Value                               Meaning

        0          Serial port speed set to 300bps.

        1          Serial port speed set to 600bps.

        2          Serial port speed set to 1200bps.

        3          Serial port speed set to 2400bps.

        4          Serial port speed set to 4800bps.

        5          Serial port speed set to 7200bps.

        6          Serial port speed set to 9600bps.

        7          Serial port speed set to 12Kbps.

        8          Serial port speed set to 14.4Kbps.

        9          Serial port speed set to 16.8Kbps.

       10          Serial port speed set to 19.2Kbps.

       11          Serial port speed set to 21.6Kbps.

       12          Serial port speed set to 24Kbps.

       13          Serial port speed set to 26.4Kbps.

       14          Serial port speed set to 28.8Kbps.

       15          Serial port speed set to 38.4Kbps.

       16          Serial port speed set to 57.6Kbps.

       17          Serial port speed set to 115.2Kbps.

                    MAXIMUM BLOCK SIZE FOR TRANSMISSION

  Type:          Register (read-only)

  Format:        AT [cmds] S49? [cmds]

  Description:   Displays the maximum transmittable block size in MNP
                 mode.

     Value                               Meaning

       0         MNP block size is 64 characters

       1         MNP block size is 128 characters

       2         MNP block size is 192 characters

       3         MNP block size is 256 characters

                                 MNP MODE

  Type:          Register

  Format:        AT [cmds] S59=n [cmds]

  Description:   Controls MNP mode.

    Command                              Function

     S59=0        MNP5 compression disabled.

     S59=1        MNP5 compression enabled.

                             MODE OF OPERATION

  Type:           Register

  Format:         AT [cmds] S50? [cmds]

  Description:    Returns a value indicating the modems current
                  operating mode.

      Value                               Meaning

        0          Modem is in data mode.

        1          Modem is in fax mode.

                             ROUND TRIP DELAY

  Type:          Register

  Format:        AT [cmds] S65=n [cmds]

  Default:       Read-only

  Range:         Unidentified

  Unit:          .1 second

  Description:   The function of this register is unidentified.

                                SLEEP TIMER

  Type:                   Register

  Format                  AT [cmds] S46=n [cmds]

  Default:                255

  Range:                  0-255

  Unit:                   .1 second

  Description:            Maximum duration of DTE and DCE inactivity
                          allowed prior to initiating low-power sleep
                          mode. Setting S46 to 255 disables this feature.

                                SLEEP TIMER

  Type:                  Register

  Format                 AT [cmds] S47=n [cmds]

  Default:               255

  Range:                 0-255

  Unit:                  Unidentified

  Description:           Maximum duration of DTE and DCE inactivity
                         allowed prior to initiating power-down sleep
                         mode. Setting S47 to 255 disables this feature.

                          V.42bis DICTIONARY SIZE

  Type:          Register (read-only)

  Format:        AT [cmds] S57? [cmds]

  Description:   Returns a value indicating the V.42bis dictionary size.

     Value                               Meaning

       0         512 byte dictionary selected.

       1         1024 byte dictionary selected.

       2         1536 byte dictionary selected.

                       V.42bis MAXIMUM STRING LENGTH

  Type:          Register

  Format:        AT [cmds] S58=n [cmds]

  Default:       32

  Range:         6-64

  Unit:          1 ASCII character

  Description:   Sets the maximum string size for V.42bis compression.

