
NETCOMM LIMITED

ROADSTER56 (AM5600, AM5600M)

Card Type                    Modem (asynchronous)
Chipset                      Unidentified
I/O Options                  Microphone in, speaker out, voice,
                             speakerphone
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

                             Rockwell V.FC

                             U.S. Robotics x2
Fax Modulation               ITU-T V.17, V.27ter, V.29
Error Correction/Compression MNP5, V.42, V.42bis
Fax Class                    Class I & II
Data Bus                     Serial

[Image]

                                CONNECTIONS

         Function            Label             Function            Label

  AC power in                 CN1      Speaker out                  CN4

  Serial port via 9-pin       CN2      Microphone in                CN5
  mini-DIN

  Telephone line out          CN3

                             POWER SWITCH

              Setting                             SW1

  Standby; wait for incoming call              Position 1

           Power is off                        Position 2

            Power is on                        Position 3

                             DIAGNOSTIC LED(S)

     LED          Color        Status                Condition

      TD           Red        Blinking      Modem is transmitting data

      TD           Red          Off        Modem is not transmitting data

      RD           Red        Blinking        Modem is receiving data

      RD           Red          Off         Modem is not receiving data

      OH           Red           On              Modem is off-hook

      OH           Red          Off              Modem is on-hook

      CD           Red           On           Carrier signal detected

      CD           Red          Off         Carrier signal not detected

      AA           Red           On             Auto-answer enabled

      AA           Red          Off            Auto-answer disabled

      AA           Red        Blinking           Phone is ringing

      TR           Red           On             DTR signal is high

      TR           Red          Off              DTR signal is low

    POWER          Red           On                 Power is on

    POWER          Red          Off                Power is off

            Note: The exact locations of the individual LEDs are
            unidentified.

                      SUPPORTED STANDARD COMMANDS

                           Basic AT Commands

  +++, comma, A/

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

  &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.

                          BIT-MAPPED REGISTER S13

  Format           AT [cmds] S13=n [cmds]

  Default:         0

  Range:           0 - 159

  Description:     Controls DTR reset, DTR dialing, reset dialing, and
                   MNP3.

   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 enters command state when +++ is received.

              1    Modem disconnects and enters command state when +++ is
                   received.

                          BIT-MAPPED REGISTER S15

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

  Default:                0

  Range:                  0 - 255

  Description:            Controls error correction and compression in
                          selected protocols, MNP modes, and V.42
                          operation.

      Bit          Value                      Function

       0                 0  Error correction/compression enabled in V.22
                            mode.
                        1
                            Error correction/compression disabled in V.22
                            mode.

        1                0   Error correction/compression enabled in
                             V.22bis mode.
                        1
                             Error correction/compression disabled in
                             V.22bis mode.

        2                0   Error correction/compression enabled in V.32
                             and V.32bis modes.
                        1
                             Error correction/compression disabled in
                             V.32 and V.32bis modes.

        3                0   MNP handshake enabled.

                        1    MNP handshake disabled.

        4                0   MNP4 disabled.

                        1    MNP4 enabled.

        5                0   MNP3 disabled.

                        1    MNP3 enabled.

        6                0   MNP operation normal

                        1    MNP configured for non-compatible modems.

        7                0   V.42 enabled.

                        1    V.42 disabled.

                          BIT-MAPPED REGISTER S27

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

  Default:               0

  Range:                 0 - 191

  Description:           Controls V.21/Bell 103A, V.32 encoding and
                         modulation, V.32bis modulation, V.42 answer tone
                         and selective reject, and 9600 result codes.

    Bit       Value                          Function

     0                0  Bell 103A enabled.

                     1   V.21 enabled.

     1                0  V.32 trellis coding enabled.

                     1   V.32 trellis coding disabled.

     2                0  V.32 modulation enabled.

                     1   V.32 modulation disabled.

     3                0  2100Hz answer tone enabled.

                     1   2100Hz answer tone disabled.

     4                0  Fallback to V.23 disabled.

                     1   Fallback to V.23 enabled.

     5                0  V.32bis modulation enabled.

                     1   V.32bis modulation disabled.

     6               0   Not used.

     7                0  Actual result codes displayed.

                     1   Force 9600 result codes.

                          BIT-MAPPED REGISTER S32

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

  Default:             0

  Range:               0 - 59

  Description:         Controls V.8 protocol and options, and V.34 and
                       V.FC modulation protocols.

     Bit        Value                        Function

      0               0   V.8 Call Indicate disabled.

                     1    V.8 Call Indicate enabled.

      1               0   V.8 disabled.

                     1    V.8 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  V.34 modulation at 31.2Kbps and 33.6Kbps
                          enabled.
                      1
                          V.34 modulation at 31.2Kbps and 33.6Kbps
                          disabled.

                               BREAK LENGTH

  Type:             Register

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

  Default:          10

  Range:            0 - 255

  Unit:             10 ms

  Description:      Sets the length of error correction 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.

                             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] &Nn [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.

        CONNECTION SPEED LOWER LIMIT (CON'T)

  Command                   Function

   &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 32Kbps.

   &U18     Set minimum connect speed to 36Kbps.

   &U19     Set minimum connect speed to 40Kbps.

   &U20     Set minimum connect speed to 44Kbps.

   &U21     Set minimum connect speed to 48Kbps.

   &U22     Set minimum connect speed to 49.3Kbps.

   &U23     Set minimum connect speed to 50.6Kbps.

   &U24     Set minimum connect speed to 52Kbps.

   &U25     Set minimum connect speed to 53.3Kbps.

   &U26     Set minimum connect speed to 54.6Kbps.

   &U27     Set minimum connect speed to 56Kbps.

   &U28     Set minimum connect speed to 57.3Kbps.

   &U29     Set minimum connect speed to 58.6Kbps.

   &U30     Set minimum connect speed to 60Kbps.

   &U31     Set minimum connect speed to 61.3Kbps.

                       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.

          &N15           Set maximum connect speed to 31.2Kbps.

        CONNECTION SPEED UPPER LIMIT (CON'T)

  Command                   Function

   &N16     Set maximum connect speed to 33.6Kbps.

   &N17     Set maximum connect speed to 32Kbps.

   &N18     Set maximum connect speed to 36Kbps.

   &N19     Set maximum connect speed to 40Kbps.

   &N20     Set maximum connect speed to 44Kbps.

   &N21     Set maximum connect speed to 48Kbps.

   &N22     Set maximum connect speed to 49.3Kbps.

   &N23     Set maximum connect speed to 50.6Kbps.

   &N24     Set maximum connect speed to 52Kbps.

   &N25     Set maximum connect speed to 53.3Kbps.

   &N26     Set maximum connect speed to 54.6Kbps.

   &N27     Set maximum connect speed to 56Kbps.

   &N28     Set maximum connect speed to 57.3Kbps.

   &N29     Set maximum connect speed to 58.6Kbps.

   &N30     Set maximum connect speed to 60Kbps.

   &N31     Set maximum connect speed to 61.3Kbps.

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

                      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 type.

       I4        Displays current command settings.

       I5        Displays current NVRAM settings.

       I6        Displays link diagnostics.

       I7        Displays product configuration.

      I10        Displays virtual device driver configuration.

      I11        Displays current connections statistics for V.34 mode.

                           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.

                              FACTORY PROFILE

  Type:          Immediate

  Format:        AT [cmds] &Fn [cmds]

  Description:   Resets the modem to the indicated factory defaults.

    Command                              Function

      &F0        Reset modem to factory generic profile.

      &F1        Reset modem to factory hardware flow control profile.

      &F2        Reset modem to factory software flow control profile.

                       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.

                             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.

                             INACTIVITY TIMER

  Type:                  Register

  Format                 AT [cmds] S19=n [cmds]

  Default:               0

  Range:                 0 - 255

  Unit:                  1 minute

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

                             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 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.

                    REPEAT PREVIOUS COMMAND REPEATEDLY

  Type:           Immediate

  Format:         A>

  Description:    Repeats the previous command up to ten times.

  Note:           Do not precede this command with AT, or follow it with
                  <CR>.

                                RESET MODEM

  Type:          Configuration

  Format:        AT [cmds] Zn [cmds]

  Description:   Resets the modem to the profile indicated.

    Command                              Function

       Y0        Modem resets to user profile specified by the Y command.

       Y1        Modem resets to user profile 0.

       Y2        Modem resets to user profile 1.

       Y3        Modem resets to factory generic profile.

       Y4        Modem resets to factory hardware flow control profile.

       Y5        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.

       Q3        Result codes enabled in answer mode only.

                            SPEAKERPHONE VOLUME

  Type:          Register

  Format:        AT [cmds] S31=n [cmds]

  Default:       128

  Range:         Unidentified

  Unit:          Unidentified

  Description:   Sets the volume level for speakerphone operation.

                     SPEAKERPHONE VOLUME - MICROPHONE

  Type:              Configuration

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

  Default:           230

  Range:             0 - 255

  Unit:              Unidentified

  Description:       Sets the volume level for the microphone during
                     speakerphone operation.

                       SPEAKERPHONE VOLUME - SPEAKER

  Type:             Configuration

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

  Default:          128

  Range:            0 - 255

  Unit:             Unidentified

  Description:      Sets the volume level for the speaker during
                    speakerphone operation.

                             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 the length of the V.32 handshake phase.
                         Setting S28 to a value of 255 means that the
                         modem will only attempt to make connections with
                         V.32 at 9600bps.

                               V.34 MAPPING

  Type:                  Register

  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.

                               V.34 OPTIONS

  Type:            Register

  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.

                               VOICE DEVICE

  Type:          Configuration

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

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

    Command                              Function

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

     #VLS=6      Speakerphone used for voice I/O.

