
MAXTECH CORPORATION

XPVS56I

Card Type                    Modem (asynchronous)
Chipset                      Unidentified
I/O Options                  Voice, speakerphone, microphone in, speaker
                             out
Maximum Data Rate            56Kbps
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

                             U.S. Robotics x2
Fax Modulation               ITU-T V.17, V.21CH2, V.27ter, V.29
Error Correction/Compression MNP5, V.42, V.42bis
Fax Class                    Class I & II
Data Bus                     8-bit ISA
Card Size                    Full height, one-third length

[Image]

                                CONNECTIONS

        Function            Label            Function             Label

  Telephone line out         CN1      Microphone in or             CN3
                                      speaker out

  Telephone line in          CN2      Microphone in or             CN4
                                      speaker out

            Note: It is not known which of CN3 and CN4 is the microphone
            in jack and which is the speaker out jack.

                        USER CONFIGURABLE SETTINGS

                  Setting                     Label          Position

  Plug-N-Play disabled                        JP1/C           Closed

  Plug-N-Play enabled                         JP1/C            Open

  Speakers attached to CN4 are stereo          JP5            Closed

  Speakers attached to CN4 are mono            JP5             Open

            Note: When JP1/C is set for Plug-N-Play mode, all other
            applicable settings must also be set for Plug-N-Play mode.

         SERIAL PORT ADDRESS SELECTION

    Setting          JP1/A          JP1/B

  3F8h (COM1:)      Closed          Closed

  2E8h (COM2:)       Open           Closed

  3F8h (COM3:)      Closed           Open

  2E8h (COM4:)       Open            Open

  Plug-N-Play        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, E, F, H, L, M, O, P, T, V, X, Z

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

                            S-Registers

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

            Note: See MHI help file for complete information.

  UNIDENTIFIED COMMANDS

   Command      Default

     S13           0

     S15           0

     S16           0

     S27           0

     S32           0

     S33           0

     S34           0

                         Proprietary AT Command Set

                               BREAK LENGTH

  Type:                  Register

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

  Default:               10

  Range:                 0 - 255

  Unit:                  10 ms

  Description:           Sets the length of the breaks sent from modem to
                         the DTE when in error correction mode .

                                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.

                             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.

        CONNECTION SPEED LOWER LIMIT (CON'T)

  Command                   Function

   &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.

   &U17     Set minimum connect speed to 33.3Kbps.

   &U18     Set minimum connect speed to 37.3Kbps.

   &U19     Set minimum connect speed to 41.3Kbps.

   &U20     Set minimum connect speed to 42.6Kbps.

   &U21     Set minimum connect speed to 44Kbps.

   &U22     Set minimum connect speed to 45.3Kbps.

   &U23     Set minimum connect speed to 46.6Kbps.

   &U24     Set minimum connect speed to 48Kbps.

   &U25     Set minimum connect speed to 49.3Kbps.

   &U26     Set minimum connect speed to 50.6Kbps.

   &U27     Set minimum connect speed to 52Kbps.

   &U28     Set minimum connect speed to 53.3Kbps.

   &U29     Set minimum connect speed to 54.6Kbps.

   &U30     Set minimum connect speed to 56Kbps.

   &U31     Set minimum connect speed to 57.3Kbps.

                       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.

        CONNECTION SPEED UPPER LIMIT (CON'T)

  Command                   Function

   &N15     Set maximum connect speed to 31.2Kbps.

   &N16     Set maximum connect speed to 33.6Kbps.

   &N17     Set maximum connect speed to 33.3Kbps.

   &N18     Set maximum connect speed to 37.3Kbps.

   &N19     Set maximum connect speed to 41.3Kbps.

   &N20     Set maximum connect speed to 42.6Kbps.

   &N21     Set maximum connect speed to 44Kbps.

   &N22     Set maximum connect speed to 45.3Kbps.

   &N23     Set maximum connect speed to 46.6Kbps.

   &N24     Set maximum connect speed to 48Kbps.

   &N25     Set maximum connect speed to 49.3Kbps.

   &N26     Set maximum connect speed to 50.6Kbps.

   &N27     Set maximum connect speed to 52Kbps.

   &N28     Set maximum connect speed to 53.3Kbps.

   &N29     Set maximum connect speed to 54.6Kbps.

   &N30     Set maximum connect speed to 56Kbps.

   &N31     Set maximum connect speed to 57.3Kbps.

                                   DIAL

  Type:                  Immediate

  Format:                AT [cmds] D<#>;[cmds]

  Description:           Dials the telephone number indicated according
                         to any modifiers included in the string.

        Command                              Function

           DL            Re-dial last number.

           DP            Pulse dialing enabled.

           DR            Answer mode enabled; originate mode disabled
                         following handshake initiation.

          DSn            Dial stored telephone number n.

           DT            Tone dialing enabled.

           DW            Dialing resumed following dial tone detection.

           D,            Dialing paused for amount of time specified in
                         S8 register.

           D/            Dialing paused for 1/8 second.

           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$            Wait for prompt tone detection function enabled.
                         Waits for prompt tone for amount of time
                         specified by the S7 command.

           D;            Modem returned to idle state after dialing. The
                         semicolon can only be placed at the end of the
                         dial command.

                       DISPLAY CHIPSET MANUFACTURER

  Type:          Immediate

  Format:        AT [cmds] #MFR? [cmds]

  Description:   Displays the voice chipset manufacturers name.

                        DISPLAY CHIPSET MODEL NAME

  Type:          Immediate

  Format:        AT [cmds] #MDL? [cmds]

  Description:   Displays the model name of the modem's voice chipset.

                         DISPLAY CHIPSET REVISION

  Type:          Immediate

  Format:        AT [cmds] #REV? [cmds]

  Description:   Displays the revision level of the modem's voice
                 chipset.

                      DISPLAY HELP SCREEN - AMPERSAND

  Type:          Configuration

  Format:        AT [cmds] &$ [cmds]

  Description:   Displays the help screen on the AT& commands.

                        DISPLAY HELP SCREEN - BASIC

  Type:          Configuration

  Format:        AT [cmds] $ [cmds]

  Description:   Displays the basic help screen.

                        DISPLAY HELP SCREEN - DIAL

  Type:          Configuration

  Format:        AT [cmds] D$ [cmds]

  Description:   Displays the help screen on the dialing commands.

                      DISPLAY HELP SCREEN - REGISTERS

  Type:          Configuration

  Format:        AT [cmds] S$ [cmds]

  Description:   Displays the help screen for S registers.

                            DISPLAY INFORMATION

  Type:          Immediate

  Format:        AT [cmds] In [cmds]

  Description:   Displays modem properties.

    Command                              Function

       I0        Displays product identification code.

       I1        Tests and displays ROM checksum result.

       I2        Tests and displays RAM checksum result.

       I3        Displays product identification.

       I4        Displays current command settings.

       I5        Displays current NVRAM settings.

       I6        Displays current connections statistics.

       I7        Displays product configuration.

                           ERROR CORRECTION MODE

  Type:          Configuration

  Format:        AT [cmds] &Mn [cmds]

  Description:   Selects active error correction protocols.

    Command                              Function

      &M0        Normal mode only.

      &M4        Auto-detect mode.

      &M5        Error correction mode only.

                           EXTENDED RESULT CODES

  Type:          Configuration

  Format:        AT [cmds] &An [cmds]

  Description:   Selects extended result codes.

    Command                              Function

      &A0        Extended result codes disabled.

      &A1        Error correction result codes enabled.

      &A2        V.32 result code enabled.

      &A3        Error correction and compression result codes enabled.

                             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.

                       FLOW CONTROL CHARACTER - XOFF

  Type:          Register

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

  Default:       19

  Range:         0 - 127

  Unit:          1 ASCII character

  Description:   Sets the character used to represent XOFF.

                       FLOW CONTROL CHARACTER - XON

  Type:          Register

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

  Default:       17

  Range:         0 - 127

  Unit:          1 ASCII character

  Description:   Sets the character used to represent XON.

                       FLOW CONTROL - MODEM-TO-MODEM

  Type:                 Configuration

  Format:               AT [cmds] &In [cmds]

  Description:          Selects the type of modem-to-modem flow control
                        used.

       Command                              Function

         &I0            Software flow control disabled.

         &I1            XON/XOFF pass-through enabled.

         &I2            XON/XOFF pass-through disabled.

         &I3            Hewlett-Packard ENQ/ACK host mode enabled.

         &I4            Hewlett-Packard ENQ/ACK terminal mode enabled.

         &I5            XON/XOFF pass-through enabled in normal mode and
                        disabled in error-correcting mode.

                             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 error correction mode only.

                              MODE SELECTION

  Type:          Immediate

  Format:        AT [cmds] #CLS=n [cmds]

  Description:   Selects which mode the modem will operate in.

    Command                              Function

     #CLS=0      Modem will operate in data mode.

     #CLS=1      Modem will operate in fax class 1 mode.

     #CLS=2      Modem will operate in fax class 2 mode.

     #CLS=8      Modem will operate in voice mode.

                            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 profile 0 on power-up.

       Y3         Modem resets to factory profile 1 on power-up.

       Y4         Modem resets to factory profile 2 on power-up.

       Y6         Displays current connections statistics.

                               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.

                          STORE TELEPHONE NUMBER

  Type:                  Configuration

  Format:                AT [cmds] &Zn=<#>

                         AT [cmds] &Zn=L

  Description:           Writes selected telephone numbers into the
                         non-volatile memory at location n. If the second
                         form is used, the modem will store the last
                         number dialed.

                              TONE DETECTION

  Format:                    AT [cmds] #VTD=x,y,z [cmds]

  Default:                   x,y,z 63

  Range:                     0 - 63

  Description:               Sets which tones the tone detection will
                             report.

  Note:                      The value of x sets the tone detection modes
                             in voice transmit mode, y sets them in voice
                             receive mode, and z sets them in voice
                             command mode.

        Bit           Value                     Function

         0                  0   DTMF tones are not detected.

                           1    DTMF tones are detected.

         1                  0   V.25 1300Hz calling tone is not detected.

                           1    V.25 1300Hz calling tone is detected.

         2                  0   T.30 1100Hz fax tone is not detected.

                           1    T.30 1100Hz fax tone is detected.

         3                  0   V.25/T.30 2100Hz answer tone is not
                                detected.
                           1
                                V.25/T.30 2100Hz answer tone is detected.

         4                  0   Bell 2225Hz answer tone is not detected.

                           1    Bell 2225Hz answer tone is detected.

         5                  0   Call progress tones are not detected.

                           1    Call progress tones are detected.

                       TONE GENERATOR - DIRECT ENTRY

  Type:             Immediate

  Format:           AT [cmds] #VTS=[m, n, x]

  Range:            m 200-3000, n 200-3000, x 0-255

  Unit:             m 1 Hz, n 1 Hz, x .1 second

  Description:      Generates a dual-frequency tone for duration x at
                    frequencies m and n.

                     TONE GENERATOR - TIMED PHONE KEYS

  Type:           Immediate

  Format:         AT [cmds] #VTS={a, n}

  Range:          a 0-9, A-D, #, *; x 0-255

  Unit:           x .1 second

  Description:    Generates the DTMF tone for duration x for the
                  character a.

                        TONE GENERATOR - PHONE KEYS

  Type:                  Immediate

  Format:                AT [cmds] #VTS=a

  Range:                 0-9, A-D, #, *

  Description:           Generates the DTMF tones for the characters in
                         the string for the duration set with +VBT.

                           TONE GENERATOR LENGTH

  Format         AT [cmds] #VBT=n [cmds]

  Default:       10

  Range:         0 - 40

  Unit:          0.1 second

  Description:   Sets the length of DTMF tones that are generated.

                      V.21 ANSWER MODE FALLBACK TIMER

  Type:          Register

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

  Default:       20

  Range:         0 - 255

  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 handshaking phase.

                            VOICE BUFFER SPACE

  Type:                  Configuration

  Format:                AT [cmds] #VSK=n [cmds]

  Default:               255

  Range:                 0 - 255

  Unit:                  1 byte

  Description:           Sets the amount of data the modem can send into
                         the buffer after the XOFF signal is sent.

                               VOICE DEVICE

  Type:                  Configuration

  Format:                AT [cmds] #VLS=n [cmds]

  Description:           Selects the I/O device for the DSP chip.

  Note:                  This modem may not support all options listed
                         below. The #VLS? command will display the
                         available options.

        Command                              Function

        #VLS=0           Telephone line and handset used for voice I/O.

        #VLS=1           Telephone handset used for voice I/O.

        #VLS=2           Internal speaker only used for voice I/O.

        #VLS=3           External microphone only used for voice I/O.

        #VLS=4           Telephone line and handset used for voice I/O;
                         internal speaker enabled.

        #VLS=7           Handset muted by disconnecting the handset or
                         speakerphone from the telephone line.

        #VLS=9           Connects handset (or speakerphone) to DSP chip
                         for recording or playback.

                        VOICE - DISPLAY BUFFER SIZE

  Type:          Immediate

  Format:        AT [cmds] #VBQ? [cmds]

  Description:   Displays the size of the voice buffer.

                     VOICE - DISPLAY COMPRESSION TYPE

  Type:          Immediate

  Format:        AT [cmds] #VCI? [cmds]

  Description:   Displays the type of compression currently in use.

                      VOICE - LOCAL SERIAL PORT SPEED

  Type:                  Configuration

  Format:                AT [cmds] #BDR=n [cmds]

  Default:               0

  Range:                 0 - 48

  Unit:                  2400bps

  Description:           Sets the speed of the local serial port when in
                         voice mode. A value of 0 indicates that the
                         modem should auto-detect the correct serial port
                         speed.

                         VOICE RE-RING DETECT TIME

  Type:                  Configuration

  Format:                AT [cmds] #VRA=n [cmds]

  Default:               70

  Range:                 0 -255

  Unit:                  10 mS

  Description:           Sets the maximum time the modem will wait for
                         the remote station to ring again before it
                         assumes that it has gone off-hook.

                               VOICE RECEIVE

  Type:          Immediate

  Format:        AT [cmds] #VRX

  Description:   Commands the modem to begin receiving voice data.

                          VOICE RING DETECT TIME

  Type:                  Configuration

  Format:                AT [cmds] #VRN=n [cmds]

  Default:               70

  Range:                 0 - 255

  Unit:                  .1 second

  Description:           Sets the maximum time the modem will wait for
                         the remote station to ring before it assumes
                         that it went off-hook before it rang.

                           VOICE SAMPLE QUALITY

  Type:                  Configuration

  Format:                AT [cmds] #VBS=n [cmds]

  Description:           Selects the number of bits per sample that the
                         modem records.

  Note:                  This modem may not support all options listed
                         below. The #VBS? command will display the
                         available options.

        Command                              Function

         #VBS=2          Modem records 2 bits per sample in ADPCM
                         encoding.

         #VBS=3          Modem records 3 bits per sample in ADPCM
                         encoding.

         #VBS=4          Modem records 4 bits per sample in ADPCM
                         encoding.

         #VBS=8          Modem records 8 bits per sample in PCM encoding.

        #VBS=16          Modem records 16 bits per sample in PCM
                         encoding.

                            VOICE SAMPLING RATE

  Type:          Configuration

  Format:        AT [cmds] #VSR=n [cmds]

  Description:   Sets the sampling rate used when recording voice
                 signals.

    Command                              Function

   #VSR=7200     Selects a sampling rate of 7.2KHz.

   #VSR=8000     Selects a sampling rate of 8KHz.

   #VSR=11025    Selects a sampling rate of 11.025KHz in PCM encoding
                 only.

                       VOICE SILENCE DETECTION TIME

  Type:           Configuration

  Format:         AT [cmds] #VSP=n [cmds]

  Default:        55

  Range:          0 - 255

  Unit:           .1 second

  Description:    Sets the minimum amount of silence that the modem will
                  detect.

                     VOICE SILENCE DETECTION THRESHOLD

  Type:                 Configuration

  Format:               AT [cmds] #VSS=n [cmds]

  Description:          Sets the threshold of sensitivity that the modem
                        uses to determine silence detection.

       Command                              Function

        #VSS=0          Silence detection disabled.

        #VSS=1          Minimum silence detection sensitivity.

        #VSS=2          Standard silence detection sensitivity.

        #VSS=3          Maximum silence detection sensitivity.

                              VOICE TRANSMIT

  Type:          Immediate

  Format:        AT [cmds] #VTX

  Description:   Commands the modem to begin transmitting voice data.

