
MOTOROLA, INC.

MODEMSURFR 28800 INTERNAL

Card Type                    Modem (asynchronous)/Fax
Chip Set                     Unidentified
Maximum Data Rate            28.8Kbps
Maximum Fax Rate             14.4Kbps
Data Bus                     8-bit ISA
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, V.34
Fax Modulation Protocol      ITU-T V.17, V.21CH2, V.27ter, V.29
Error Correction/Compression MNP5, V.42, V.42bis

[Image]

                                CONNECTIONS

         Function            Label            Function             Label

  Line out                        CN1       Line in                 CN2

            SERIAL PORT ADDRESS

    Setting         J1/A          J1/B

  COM1 (3F8h)      Closed        Closed

  COM2 (2F8h)      Closed         Open

  COM3 (3E8h)       Open         Closed

  COM4 (2E8h)       Open          Open

                      INTERRUPT

  Setting     J1/C       J1/D      J1/E       J1/F

     2       Closed      Open      Open       Open

     3        Open       Open     Closed      Open

     4        Open       Open      Open      Closed

     5        Open      Closed     Open       Open

                       PLUG AND PLAY

  Setting      J2/A        J2/B        J2/C        J2/D

  Disabled    Closed      Closed       Open        Open

  Enabled      Open        Open       Closed      Closed

                         Proprietary AT Command Set

                     AUTO-RELIABLE FALLBACK CHARACTER

  Type:            Configuration

  Format:          AT [cmds] %An [cmds]

  Default:         Unidentified

  Range:           1-127

  Unit:            ASCII

  Description:     Sets the character used as the auto-reliable fallback
                   character

  Note: %A0 Auto-reliable fallback character disabled

                  AUTO-RELIABLE TIME BUFFER CONFIGURATION

  Type:              Configuration

  Format:            AT [cmds] \Cn [cmds]

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

      Command                             Function

        \CO          Disabled auto-reliable buffer

        \C1          Data is buffered for 4 seconds or 200 characters

        \C2          Switch to normal mode and sends auto-reliable
                     character to serial port

                        AUTO FALL FORWARD/FALLBACK

  Type:          Configuration

  Format:        AT [cmds] %Gn [cmds]

  Description:   Selects auto fallback/fall forward

    Command                              Function

      %G0        Fallback/fall forward disabled

      %G1        Fallback/fall forward enabled

                          AUTO FALLBACK CHARACTER

  Type:          Register

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

  Default:       13

  Range:         0-127

  Unit:          ASCII

  Description:   Set auto fallback character during MNP negotiation

  Note: S43=0 disabled S43=(1-127) enabled

                                COMPRESSION

  Type:          Configuration

  Format:        AT [cmds] %Cn [cmds]

  Description:   Selects data compression

    Command                              Function

      %C0        Data compression disabled

      %C1        Data compression enabled

                               CONNECT MODE

  Type:          Configuration

  Format:        AT [cmds] \Nn [cmds]

  Description:   Sets connect mode

    Command                              Function

      \N0        Normal mode enabled

      \N1        Direct mode enabled

      \N2        MNP reliable mode enabled

      \N3        LAPM, MNP, or normal mode enabled

      \N4        LAPM or MNP mode enabled

                         DISPLAY CONNECT MESSAGE

  Type          Register

  Format        AT [cmds] S41? [cmds]

  Description   Displays connect message

    Command                             Function

     S41=0      CONNECT/DTE to modem speed enabled

     S41=1      CONNECT/carrier, protocol, and compression enabled

     S41=2      CONNECT/modem to modem speed enabled

                               FLOW CONTROL

  Type:          Configuration

  Format:        AT [cmds] \Gn [cmds]

  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]

  Description:   Sets type of flow control used by modem

    Command                              Function

      \Q0        Flow control disabled

      \Q1        XON/XOFF flow control enabled

      \Q2        CTS flow control by DTE enabled

      \Q3        CTS/RTS flow control enabled

                             INACTIVITY TIMER

  Type:                  Configuration

  Format:                AT [cmds] \Tn [cmds]

  Default:               0

  Range:                 0-90

  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]

  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]

  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

                           EXTENDED RESULT CODES

  Type:          Configuration

  Format:        AT [cmds] \Vn [cmds]

  Description:   Selects extended result codes

    Command                              Function

      \V0        Extended result codes disabled

      \V1        Extended result codes enabled

                               V.32 RETRAIN

  Type:                 Register

  Format:               AT [cmds] S42=n [cmds]

  Description:          Selects action the modem will take during bad
                        line quality on V.32/32bis connection

       Command                              Function

        S42=0           Auto-retrain disabled, hang up

        S42=1           Auto-retrain on line quality problem enabled

        S42=2           Modem ignores line quality problems

        S42=3           Unidentified

                           V.42 DETECTION PHASE

  Type:          Configuration

  Format:        AT [cmds] -Jn [cmds]

  Description:   Controls V.42 detection

    Command                              Function

      -J0        V.42 detection disabled

      -J1        V.42 detection enabled

                        V.42bis COMPRESSION CONTROL

  Type:          Configuration

  Format:        AT [cmds] "Hn [cmds]

  Description:   Controls V.42bis data compression

    Command                              Function

      "H0        V.42bis disabled

      "H1        V.42bis when transmitting enabled

      "H2        V.42bis when receiving enabled

      "H3        V.42bis when transmitting/receiving enabled

                           XON/XOFF PASS-THROUGH

  Type:          Configuration

  Format:        AT [cmds] \Xn [cmds]

  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

