
QUADRANT COMPONENTS, INC.

CHOICE 33.6

Card Type                    Modem (asynchronous)
Chipset                      U.S. Robotics
Maximum Data Rate            33.6Kbps
Maximum Fax Rate             14.4Kbps
Data Modulation              Bell 103A, 212A

                             ITU-T V.21, V.22, V.22bis, V.23, V.32,
                             V.32bis, V.34
Fax Modulation               Unidentified
Error Correction/Compression MNP5, V.42, V.42bis
Fax Class                    Class I & II
Data Bus                     8-bit ISA
Card Size                    Full height, half length

[Image]

                                CONNECTIONS

          Function             Label           Function             Label

  Telephone line               CN1     Telephone line               CN2

                 SERIAL PORT ADDRESS SELECTION

    Setting          JP1/A           JP1/B          JP1/C

  3F8h (COM1:)      Closed          Closed          Closed

  2F8h (COM2:)       Open           Closed          Closed

  3E8h (COM3:)      Closed           Open           Closed

  2E8h (COM4:)       Open            Open           Closed

  Plug-N-Play        Open            Open            Open

                            INTERRUPT SELECTION

    Setting       JP2/A       JP2/B       JP2/C       JP2/D       JP2/E

       2         Closed       Open        Open        Open        Open

       3          Open       Closed       Open        Open        Open

       4          Open        Open       Closed       Open        Open

       5          Open        Open        Open       Closed       Open

       7          Open        Open        Open        Open       Closed

  Plug-N-Play     Open        Open        Open        Open        Open

                      SUPPORTED STANDARD COMMANDS

                           Basic AT Commands

  +++, comma, A/

  A, B, C, D, E, F, H, L, M, O, P, T, V, X

  &C, &D, &G, &P, &R, &S, &T, &W, &Z

                              S-Registers

  S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S38

            Note: See MHI help file for complete information.

                         Proprietary AT Command Set

                          BIT-MAPPED REGISTER S13

  Format                AT [cmds] S13=n [cmds]

  Default:              0

  Range:                0 - 159

  Description:          Controls DTR reset, non-error-correcting mode
                        buffer, BS/DEL switch, DTR dialing, reset
                        dialing, and escape sequence reaction.

   Bit       Value                          Function

    0               0   DTR normal.

                   1    Reset on low DTR.

    1               0   Non-error-correcting mode transmit buffer set to
                        1.5KB.
                   1
                        Non-error-correcting mode transmit buffer set to
                        128 bytes.

    2               0   Backspace and delete keys normal.

                   1    Backspace and delete keys reversed.

    3               0   DTR dialing disabled.

                   1    DTR dialing enabled.

    4               0   Reset dialing disabled.

                   1    Reset dialing enabled.

   6, 5           00    Not used.

    7               0   Modem reacts normally to escape sequence.

                   1    Modem disconnects and returns to command state
                        upon receiving an escape sequence.

                          BIT-MAPPED REGISTER S27

  Format:                AT [cmds] S27=n [cmds]

  Default:               0

  Range:                 0 - 191

  Description:           Controls V.21, V.32 encoding and modulation,
                         V.42 answer tone, V.32 fallback, V.32bis mode,
                         and 9600 result codes.

    Bit       Value                          Function

     0                0  V.21 disabled.

                     1   V.21 enabled.

     1                0  V.32 trellis coding disabled.

                     1   V.32 trellis coding enabled.

     2                0  V.32 modulation enabled.

                     1   V.32 modulation disabled.

     3                0  2100Hz answer tone enabled.

                     1   2100Hz answer tone disabled.

     4                0  V.32 fallback disabled.

                     1   V.32 fallback enabled.

     5                0  V.32bis enabled.

                     1   V.32bis disabled.

     6               0   Not used.

     7                0  Actual result codes displayed.

                     1   Force 9600 result codes.

                               BREAK LENGTH

  Type:            Register

  Format:          AT [cmds] S21=n [cmds]

  Default:         10

  Range:           Unidentified

  Unit:            10 ms

  Description:     Sets the length of error control mode breaks sent from
                   DCE to DTE.

                                BREAK TYPE

  Type:          Configuration

  Format:        AT [cmds] &Yn [cmds]

  Description:   Configures action of break signal.

    Command                              Function

      &Y0        Break empties buffer.

      &Y1        Break empties buffer and is sent immediately.

      &Y2        Break does not empty buffer and is sent immediately.

                            COMMUNICATIONS MODE

  Type:          Configuration

  Format:        AT [cmds] &Mn [cmds]

  Description:   Selects communications mode.

    Command                                Mode

      &M0        Modem operates in asynchronous mode.

      &M5        Modem operates in asynchronous auto-reliable mode.

      &M6        Modem operates in asynchronous reliable mode.

                             COMPRESSION MODE

  Type:          Configuration

  Format:        AT [cmds] &Kn [cmds]

  Description:   Selects the type of data compression that will be used.

    Command                              Function

      &K0        Data compression disabled.

      &K1        Auto-detect compression mode.

      &K2        Data compression enabled.

      &K3        MNP5 data compression only enabled.

                       CONNECTION SPEED LOWER LIMIT

  Type:            Configuration

  Format:          AT [cmds] &Un [cmds]

  Description:     Sets slowest allowed connection speed if &N is set to
                   1 or higher.

     Command                              Function

       &U0         No minimum connect speed.

       &U1         Set minimum connect speed to 300bps.

       &U2         Set minimum connect speed to 1200bps.

       &U3         Set minimum connect speed to 2400bps.

       &U4         Set minimum connect speed to 4800bps.

       &U5         Set minimum connect speed to 7200bps.

       &U6         Set minimum connect speed to 9600bps.

       &U7         Set minimum connect speed to 12Kbps.

       &U8         Set minimum connect speed to 14.4Kbps.

       &U9         Set minimum connect speed to 16.8Kbps.

       &U10        Set minimum connect speed to 19.2Kbps.

       &U11        Set minimum connect speed to 21.6Kbps.

       &U12        Set minimum connect speed to 24Kbps.

       &U13        Set minimum connect speed to 26.4Kbps.

       &U14        Set minimum connect speed to 28.8Kbps.

       &U15        Set minimum connect speed to 31.2Kbps.

       &U16        Set minimum connect speed to 33.6Kbps.

                       CONNECTION SPEED UPPER LIMIT

  Type:                  Configuration

  Format:                AT [cmds] &Nn [cmds]

  Description:           Sets required connection speed if &U is set to
                         0; otherwise, sets fastest allowed connection
                         speed.

        Command                              Function

          &N0            No maximum connect speed.

          &N1            Set maximum connect speed to 300bps.

          &N2            Set maximum connect speed to 1200bps.

          &N3            Set maximum connect speed to 2400bps.

          &N4            Set maximum connect speed to 4800bps.

          &N5            Set maximum connect speed to 7200bps.

          &N6            Set maximum connect speed to 9600bps.

          &N7            Set maximum connect speed to 12Kbps.

          &N8            Set maximum connect speed to 14.4Kbps.

          &N9            Set maximum connect speed to 16.8Kbps.

          &N10           Set maximum connect speed to 19.2Kbps.

          &N11           Set maximum connect speed to 21.6Kbps.

          &N12           Set maximum connect speed to 24Kbps.

          &N13           Set maximum connect speed to 26.4Kbps.

          &N14           Set maximum connect speed to 28.8Kbps.

          &N15           Set maximum connect speed to 31.2Kbps.

          &N16           Set maximum connect speed to 33.6Kbps.

                            DISPLAY INFORMATION

  Type:          Immediate

  Format:        AT [cmds] In [cmds]

  Description:   Displays information requested about the modem.

    Command                              Function

       I0        Displays product code.

       I1        Displays ROM checksum result.

       I2        Displays RAM checksum result.

       I3        Displays firmware version.

       I4        Displays current command settings.

       I5        Displays current NVRAM settings.

       I6        Displays link diagnostics.

       I7        Displays configuration.

       I9        Displays Plug-N-Play information.

      I11        Displays call statistics.

                       ERROR CORRECTION/COMPRESSION

  Format:           AT [cmds] S15=n [cmds]

  Default:          0

  Range:            0 - 255

  Description:      Selects which classes of error correction and
                    compression may be used.

   Bit     Value                          Function

    0            0  MNP and V.42 enabled during V.22 operation.

                1   MNP and V.42 disabled during V.22 operation.

    1            0  MNP and V.42 enabled during V.22bis operation.

                1   MNP and V.42 disabled during V.22bis operation.

    2            0  MNP and V.42 enabled during V.32 and V.32bis
                    operation.
                1
                    MNP and V.42 disabled during V.32 and V.32bis
                    operation.

    3            0  MNP enabled.

                1   MNP disabled.

    4            0  MNP 4 enabled.

                1   MNP 4 disabled.

    5            0  MNP 3 enabled.

                1   MNP 3 disabled.

    6            0  MNP normal.

                1   MNP adjusted for non compliant modems.

    7            0  V.42 enabled.

                1   V.42 disabled.

                           EXTENDED RESULT CODES

  Type:          Configuration

  Format:        AT [cmds] &An [cmds]

  Description:   Selects extended result codes.

    Command                              Function

      &A0        Extended result codes disabled.

      &A1        ARQ result codes enabled.

      &A2        V.32 result code enabled.

      &A3        Error control and compression result codes enabled.

                             FACTORY DEFAULTS

  Type:          Immediate

  Format:        AT [cmds] &Fn [cmds]

  Description:   Resets the modem to the specified factory profile.

    Command                              Function

      &F0        Modem resets to factory generic profile.

      &F1        Modem resets to factory hardware flow control profile.

      &F2        Modem resets to factory software flow control profile.

                       FLOW CONTROL CHARACTER - XON

  Type:          Register

  Format:        AT [cmds] S22=n [cmds]

  Default:       17

  Range:         11 - 127

  Unit:          ASCII

  Description:   Sets the character used to represent XON.

                       FLOW CONTROL CHARACTER - XOFF

  Type:          Register

  Format:        AT [cmds] S23=n [cmds]

  Default:       19

  Range:         11 - 127

  Unit:          ASCII

  Description:   Sets the character used to represent XOFF.

                             FLOW CONTROL TYPE

  Type:          Configuration

  Format:        AT [cmds] &Hn [cmds]

  Description:   Sets type of flow control used by modem.

    Command                              Function

      &H0        Flow control disabled.

      &H1        CTS/RTS flow control enabled.

      &H2        XON/XOFF flow control enabled.

      &H3        CTS/RTS and XON/XOFF flow control enabled.

                             HELP - AMPERSAND

  Type:          Immediate

  Format:        AT [cmds] &$

  Description:   Displays help on the AT& commands.

                                HELP - DIAL

  Type:          Immediate

  Format:        AT [cmds] D$

  Description:   Displays help on dial modifiers.

                              HELP - GENERAL

  Type:          Immediate

  Format:        AT [cmds] $

  Description:   Displays help on the basic (no prefix) AT commands.

                            HELP - S-REGISTERS

  Type:          Immediate

  Format:        AT [cmds] S$

  Description:   Displays help on the S-registers.

                             INACTIVITY TIMER

  Type:                  Register

  Format:                AT [cmds] S19=n [cmds]

  Default:               0

  Range:                 0-255

  Unit:                  1 minute

  Description:           Sets the length of time that the modem does not
                         receive information before it disconnects; S19=0
                         will disable this function.

                             LOCK SERIAL PORT

  Type:          Configuration

  Format:        AT [cmds] &Bn [cmds]

  Description:   Sets operation of serial port speed.

    Command                              Function

      &B0        Serial speed follows connect speed.

      &B1        Serial speed locked.

      &B2        Serial speed locked in ARQ mode only.

                            PROFILE ON POWER-UP

  Type:            Configuration

  Format:          AT [cmds] Yn [cmds]

  Description:     Selects the profile that the modem will reset to on
                   power-up.

     Command                              Function

        Y0         Modem resets to user profile 0 on power-up.

        Y1         Modem resets to user profile 1 on power-up.

        Y2         Modem resets to factory generic profile on power-up.

        Y3         Modem resets to factory hardware flow control profile
                   on power-up.

        Y4         Modem resets to factory software flow control profile
                   on power-up.

                                RESET MODEM

  Type:          Immediate

  Format:        AT [cmds] Zn [cmds]

  Description:   Resets the modem to the specified profile.

    Command                              Function

       Z0        Modem resets to profile set with the Y command.

       Z1        Modem resets to user profile 0.

       Z2        Modem resets to user profile 1.

       Z3        Modem resets to factory generic profile.

       Z4        Modem resets to factory hardware flow control profile.

       Z5        Modem resets to factory software flow control profile.

                               RESULT CODES

  Type:          Configuration

  Format:        AT [cmds] Qn [cmds]

  Description:   Enables modem to send result codes to the DTE.

    Command                              Function

       Q0        Result codes enabled.

       Q1        Result codes disabled.

       Q2        Result codes enabled in originate mode only.

                             TONE DIALING TEST

  Type:          Register

  Format:        AT [cmds] S16=n [cmds]

  Description:   Begins a tone dialing test.

    Command                              Function

     S16=0       Tone dialing test disabled.

     S16=2       Tone dialing test enabled.

                      V.21 ANSWER MODE FALLBACK TIMER

  Type:          Register

  Format:        AT [cmds] S29=n [cmds]

  Default:       20

  Range:         Unidentified

  Unit:          .1 second

  Description:   The function of this register is unidentified.

                            V.32 HANDSHAKE TIME

  Type:                  Register

  Format:                AT [cmds] S28=n [cmds]

  Default:               8

  Range:                 0 - 255

  Unit:                  .1 second

  Description:           Sets length of V.32 handshake. Setting S28 to
                         255 disables all connections except 9600bps V.32
                         mode.

                           V.34 AND V.FC OPTIONS

  Format:            AT [cmds] S32=n [cmds]

  Default:           2

  Range:             0 - 31

  Description:       Controls various V.34 and V.FC options.

     Bit      Value                         Function

      0             0  Call indicate during V.34 operation disabled.

                   1   Call indicate during V.34 operation enabled.

      1             0   V.8 during V.34 operation disabled.

                   1    V.8 during V.34 operation enabled.

      2             0   V.FC modulation enabled.

                   1    V.FC modulation disabled.

      3             0   V.34 modulation enabled.

                   1    V.34 modulation disabled.

      4             0   33.6Kbps V.34 modulation enabled.

                   1    33.6Kbps V.34 modulation disabled.

                               V.34 OPTIONS

  Format:          AT [cmds] S33=n [cmds]

  Default:         0

  Range:           0 - 191

  Description:     Controls V.34 baud rate and shaping.

   Bit    Value                           Function

    0          0   2400 baud rate enabled.

              1    2400 baud rate disabled.

    1          0   2743 baud rate enabled.

              1    2743 baud rate disabled.

    2          0   2800 baud rate enabled.

              1    2800 baud rate disabled.

    3          0   3000 baud rate enabled.

              1    3000 baud rate disabled.

    4          0   3200 baud rate enabled.

              1    3200 baud rate disabled.

    5          0   3429 baud rate enabled.

              1    3429 baud rate disabled.

    6         0    Not used.

    7          0   Shaping enabled.

              1    Shaping disabled.

                               V.34 OPTIONS

  Format:                AT [cmds] S34=n [cmds]

  Default:               0

  Range:                 0 - 255

  Description:           Controls V.34 mapping, non-linear coding,
                         transmit level deviation, pre-emphasis, and
                         pre-coding.

   Bit        Value                          Function

    0                0   8S-2D map enabled.

                    1    8S-2D map disabled.

    1                0   16S-4D map enabled.

                    1    16S-4D map disabled.

    2                0   32S-2D map enabled.

                    1    32S-2D map disabled.

    3                0   64S-4D map enabled.

                    1    64S-4D map disabled.

    4                0   Non-linear coding enabled.

                    1    Non-linear coding disabled.

    5                0   Transmit level deviation enabled.

                    1    Transmit level deviation disabled.

    6                0   Pre-emphasis enabled.

                    1    Pre-emphasis disabled.

    7                0   Pre-coding enabled.

                    1    Pre-coding disabled.

                           XON/XOFF PASS-THROUGH

  Type:          Configuration

  Format:        AT [cmds] &In [cmds]

  Description:   Selects whether XON/XOFF signals are sent to remote
                 modem.

    Command                              Function

      &I0        Software flow control disabled.

      &I1        XON/XOFF pass-through enabled.

      &I2        XON/XOFF pass-through disabled.

