
SIMPLE TECHNOLOGY, INC.

14.4 VOICE DATA/FAX MODEM

Modem Type                  Data (synchronous/asynchronous)/Fax/Voice
Maximum Data Rate           14.4Kbps
Maximum Fax Rate            14.4Kbps
Data Bus                    PCMCIA Type II
Fax Class                   Class I
Data Modulation Protocol    Bell 103A/212A

                            ITU-T V.21, V.22bis, V.23, V.32, V.32bis
Fax Modulation Protocol     ITU-T V.17, V.21CH2, V.27ter, V.29
Error                       MNP5, V.42, V.42bis
Correction/Compression

                                                                      V1477

                         Proprietary AT Command Set

                           ACCEPT RELIABLE MODE

  Type:          Immediate

  Format:        AT [cmds] \U [cmds]

  Example:       AT \U B1<CR>

  Description:   Accepts remote modems request for reliable link.

                        AUTO FALL FORWARD/FALLBACK

  Type:          Configuration

  Format:        AT [cmds] %Gn [cmds]

  Example:       AT %G0 &W <CR>

  Description:   Selects auto fallback in V.32bis.

    Command                              Function

   %G0          Fallback disabled.

      %G1        Fallback enabled.

                     AUTO-RELIABLE FALLBACK CHARACTER

  Type:              Configuration

  Format:            AT [cmds] %An [cmds]

  Example:           AT%A13<CR>

  Default:           13

  Range:             0-127

  Unit:              ASCII

  Description:       Sets the character used as the auto-reliable
                     fallback character. %A0 will disable this function.

                  AUTO-RELIABLE TIME BUFFER CONFIGURATION

  Type:            Configuration

  Format:          AT [cmds] \Cn [cmds]

  Example:         AT \C1 &W<CR>

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

     Command                              Function

   \CO            Data is discarded.

       \C1         Data is buffered.

       \C2         Data is discarded, sets to normal mode and sends
                   auto-reliable character to serial port.

                               AUTO-RETRAIN

  Type:          Configuration

  Format:        AT %En

  Example:       AT %E1 <CR>

  Description:   Selects auto-retrain mode.

    Command                              Function

      %E0        Auto-retrain disabled.

   %E1          Auto-retrain enabled.

                          BIT-MAPPED REGISTER S14

  Format                  AT [cmds] S14? [cmds]

  Example:                ATS14?<CR>

  Default:                Read only

  Range:                  0-182

  Unit:                   Bit-mapped

  Description:            Displays echo, result codes, dumb mode, dial
                          mode, and answer/originate mode.

      Bit         Value                        Function

       0            0        Not used.

       1             0       Command echo disabled.

                  1         Command echo enabled.

       2             0       Result codes enabled.

                  1         Result codes disabled.

       3            0        Not used.

       4             0       Dumb mode off (normal).

                  1         Dumb mode on.

       5          0         Tone dial enabled.

                    1        Pulse dial enabled.

       6            0        Not used.

       7             0       Answer mode enabled.

                  1         Originate mode enabled.

                          BIT-MAPPED REGISTER S21

  Format                     AT [cmds] S21? [cmds]

  Example:                   ATS21?<CR>

  Default:                   Read only

  Range:                     0 - 253

  Unit:                      Bit-mapped

  Description:               Displays jack type, CTS signal, low DTR
                             action, DCD signal, DSR signal, and the Long
                             Space Disconnect function.

        Bit           Value                      Function

         0            0         Selects RJ-11, RJ-41S, or RJ45S jack.

                        1        Selects RJ-12 or RJ-13 jack.

         1              0        Not used.

         2            0         CTS forced high.

                        1        CTS follows RTS.

       4, 3             00       DTR signal ignored.

                        01       Modem goes to command mode on low DTR.

                      10        Modem disconnects on low DTR.
                                 Auto-Answer is disabled.
                        11
                                 Modem is initialized on low DTR.

         5               0       DCD forced high.

                      1         DCD normal.

         6            0         DSR forced high.

                        1        DSR normal.

         7            0         Long Space Disconnect function disabled.

                        1        Long Space Disconnect function enabled.

                          BIT-MAPPED REGISTER S22

  Format                    AT [cmds] S22? [cmds]

  Example:                  ATS22?<CR>

  Default:                  Read only

  Range:                    0-255

  Unit:                     Bit-mapped

  Description:              Displays speaker volume and controls, and
                            limits results codes.

       Bit           Value                      Function

       1, 0            00       Not used.

                       01       On volume.

                     10        Medium level volume.

                       11       High level volume.

       3, 2            00       Speaker off.

                     01        Speaker off on carrier.

                       10       Speaker always on.

                       11       Speaker on during handshake.

     6, 5, 4           000      Busy and dialtone detection disabled,
                                result codes 0-4 enabled.
                       100
                                Busy and dialtone detection disabled,
                       101      result codes 0-5, 10 enabled.

                       110      Busy tone detection disabled, dialtone
                                detection enabled, result codes 0-6, 10
                     111       enabled.

                                Busy tone detection enabled, dialtone
                                detection disabled, result codes 0-5, 7,
                                10 enabled.

                                Busy and dialtone detection enabled,
                                result codes 0-7, 10 enabled.

        7            0         39/61ms at 10pps (North America)

                       1        33/67ms at 10pps (Europe)

                          BIT-MAPPED REGISTER S23

  Format                   AT [cmds] S23? [cmds]

  Example:                 ATS23?<CR>

  Default:                 Read only

  Range:                   0-255

  Unit:                    Bit-mapped

  Description:             Displays remote digital loopback status, DTE
                           rate and parity, and guard tone.

       Bit            Value                     Function

        0               0       Remote digital loopback denied.

                     1         Remote digital loopback allowed.

     3, 2, 1           000      Sets serial port speed to 0-300bps.

                       001      Sets serial port speed to 1200bps.

                       010      Sets serial port speed to 2400bps.

                       011      Sets serial port speed to 4800bps.

                       100      Sets serial port speed to 7200bps.

                       101      Sets serial port speed to 9600bps.

                       110      Sets serial port speed to 38400bps.

       5,4           00        Parity even.

                        01      No Parity.

                        10      Parity odd.

                       11       Mark.

       7, 6          00        Guard tone disabled.

                        01      Guard tone 550Hz enabled.

                       10       Guard tone 1800Hz enabled.

                          BIT-MAPPED REGISTER S27

  Format                   AT [cmds] S27=n [cmds]

  Example:                 ATS27=64<CR>

  Default:                 64

  Range:                   0 - 255

  Unit:                    Bit-mapped

  Description:             Controls communications mode, line type, and
                           protocol type.

  Note:                    Be aware that bits 2 and 3 are out of order.

       Bit           Value                      Function

     3, 1, 0         0        Asynchronous mode, serial port speed
                               follows connect speed.

        2            0        Switched line.

                       1       Lease line.

       5, 4          0        Modem generates clock source.

        6              0       Select CCITT protocols.

                     1        Select Bell protocols.

                                BREAK SEND

  Type:          Configuration

  Format:        AT [cmds] \Bn [cmds]

  Example:       AT \B3 &W<CR>

  Default:       3

  Range:         1-9

  Unit:          .1 second

  Description:   Sends break to modem.

                                   BREAK TYPE

  Type:                   Configuration

  Format:                 AT [cmds] \Kn [cmds]

  Example:                AT \K1 <CR>

  Description:            Configures action of break signal.

   Command      Break from DTE     Break from         Modem        Break from
                                       DTE        receives \B    remote modem
                Reliable/Normal
                     mode         Direct mode

     \K0        Enter command     Send break to   Buffers        Buffers
                mode, do not      remote modem    cleared and    cleared and
                send break to     immediately,    break sent to  break sent to
                remote modem.     then enter      remote modem.  DTE.
                                  command mode.

     \K1        Buffers cleared   Send break to   Buffers        Buffers
                and break sent    remote modem    cleared and    cleared and
                to remote         immediately.    break sent to  break sent to
                modem.                            remote modem.  DTE.

     \K2        Enter command     Send break to   Send break to  Send break to
                mode, do not      remote modem    remote modem   DTE
                send break to     immediately,    immediately.   immediately.
                remote modem.     then enter
                                  command mode.

     \K3        Send break to     Send break to   Send break to  Send break to
                remote modem      remote modem    remote modem   DTE
                immediately.      immediately.    immediately.   immediately.

     \K4        Enter command     Send break to   Send break to  Break sent
                mode, do not      remote modem    remote modem   with received
                send break to     immediately,    with           data to the
                remote modem.     then enter      transmitted    DTE.
                                  command mode.   data.

   \K5         Send break with   Send break to   Send break to  Break sent
                transmitted       remote modem    remote modem   with received
                data.             immediately.    with           data to the
                                                  transmitted    DTE.
                                                  data.

                                COMPRESSION

  Type:          Configuration

  Format:        AT %Cn

  Example:       AT *EC0 %C1 *AP0<CR>

  Description:   Selects data compression.

    Command                              Function

      %C0        Data compression disabled.

   %C1          Data compression enabled.

                             DTE SPEED OPTION

  Type:          Configuration

  Format:        AT [cmds] \Jn [cmds]

  Example:       AT \J0 &W<CR>

  Description:   Controls the speed of the DTE.

    Command                              Function

   \J0          DCE and DTE rates are independent.

      \J1        DTE rate adjusts to DCE rate after connection.

                               CALLING TONE

  Type:             Configuration

  Format:           AT [cmds] -Cn [cmds]

  Example:          AT -C0 &W<CR>

  Description:      Controls whether the DTE will allow the modem to send
                    a 1300Hz calling tone when originating.

      Command                             Function

   -C0             Disable calling tone.

        -C1         Enable calling tone.

                               CONNECT MODE

  Type:          Configuration

  Format:        AT [cmds] \Nn [cmds]

  Example:       AT \N1 DT555-1212<CR>

  Description:   Sets connect mode.

    Command                              Function

      \N0        Normal mode enabled.

      \N1        Direct mode enabled

      \N2        Reliable mode enabled.

      \N3        Auto-reliable mode enabled.

      \N4        LAPM mode enabled.

                         CONVERT TO RELIABLE MODE

  Type:          Immediate

  Format:        AT [cmds] \Y [cmds]

  Example:       AT \Y<CR>

  Description:   Initiates reliable mode link.

                               FLOW CONTROL

  Type:          Configuration

  Format:        AT [cmds] \Gn [cmds]

  Example:       AT \G1 &K3<CR>

  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]

  Example:       AT \Q0 A <CR>

  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 to DTE enabled.

      \Q3        RTS/CTS flow control enabled.

                             INACTIVITY TIMER

  Type:                Immediate

  Format:              AT [cmds] S90=n [cmds]

  Example:             ATS90=20<CR>

  Default:             0

  Range:               0-255

  Unit:                1 minute

  Description:         Sets the length of time that the modem does not
                       receive information before it disconnects. S90=0
                       will disable.

                             INACTIVITY TIMER

  Type:            Configuration

  Format:          AT [cmds] \Tn [cmds]

  Example:         AT\T20<CR>

  Default:         0

  Range:           0-90

  Unit:            1 minute

  Description:     Sets the length of time that the modem does not
                   receive information before it disconnects.

                   \T0 will disable.

                           REPORT SIGNAL QUALITY

  Type:           Immediate

  Format:         AT [cmds] %Q [cmds]

  Example:        AT %Q<CR>

  Description:    Reports signal quality. If the value is greater than 7,
                  the modem will retrain.

                    MAXIMUM BLOCK SIZE FOR TRANSMISSION

  Type:          Configuration

  Format:        AT [cmds] \An [cmds]

  Example:       AT \A3 %C1<CR>

  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.

                         ON-LINE IN RELIABLE MODE

  Type:          Immediate

  Format:        AT [cmds] \O

  Example:       AT \O <CR>

  Description:   Returns to on-line and requests reliable mode
                 connection.

                            REPORT INFORMATION

  Type:          Immediate

  Format:        AT [cmds] In [cmds]

  Example:       AT I1 &W<CR>

  Description:   Displays modem properties.

    Command                              Function

       I0        Reports product code.

       I1        Reports firmware version number.

       I2        Reports ROM checksum.

       I3        Reports device set name.

       I4        Reports current configuration (see rows below, default
                 is 31).

                   Bit      Value                   Meaning

                    0          0       Hayes escape sequence.

                            1         TIES escape sequence.

                    1          0       No error corection firmware.

                            1         Error corection firmware.

                    2          0       Serial host interface.

                            1         Parallel host interface.

                    3          0       No external static RAM present.

                            1         External static RAM present.

                    4          0       8K x 8 static RAM present.

                            1         32K x 8 static RAM present.

                            RESULT CODE FORMAT

  Type:          Configuration

  Format:        AT [cmds] \Vn [cmds]

  Example:       AT \V0 Q0<CR>

  Description:   Selects which type of response codes are supported.

    Command                              Function

      \V0        Enables codes selected by ATV command.

      \V1        Enables Modified MNP codes.

      \V2        Enables Modified V.42 codes.

                            RETRAIN SENSITIVITY

  Type:          Register

  Format:        AT [cmds] S108=n [cmds]

  Example:       AT S108=1 &W<CR>

  Description:   Controls the quality of retraining.

    Command                              Function

     S108=0      Retrain disabled.

   S108=1       Low quality retrain.

     S108=2      Medium quality retrain.

     S108=3      High quality retrain.

                                SRAM BUFFER

  Type:          Configuration

  Format:        AT [cmds] Kn [cmds]

  Example:       AT K1 &W<CR>

  Description:   Controls SRAM buffer for voice and fax mode.

    Command                              Function

       K0        Disables SRAM.

       K1        Enables SRAM.

                            SWITCH TO MNP MODE

  Type:          Immediate

  Format:        AT [cmds] \Z [cmds]

  Example:       AT \Z &W<CR>

  Description:   Switches to normal mode from MNP mode.

                                TEST MODES

  Format                  AT [cmds] S16=n [cmds]

  Example:                ATS16=40<CR>

  Default:                0

  Range:                  0-125

  Unit:                   Bit-mapped

  Description:            Controls loopback tests, analog, digital,
                          remote digital, and self tests.

      Bit         Value                        Function

       0          0         Local analog loopback not in progress.

                    1        Local analog loopback in progress.

       1          0         Not used.

       2          0         Local digital loopback not in progress.

                    1        Local digital loopback in progress.

       3          0         Modem not in remote digital loopback.

                    1        Remote digital loopback in progress.

       4          0         Remote digital loopback not requested.

                    1        Remote digital loopback requested.

       5          0         Remote digital loopback w/ self-test not in
                             progress.
                    1
                             Remote digital loopback w/ self-test in
                             progress.

       6          0         Local analog loopback w/ self-test not in
                             progress.
                    1
                             Local analog loopback w/ self-test in
                             progress.

                           V.42 DETECTION PHASE

  Type:          Configuration

  Format:        AT [cmds] -Jn [cmds]

  Example:       AT -J1 &W<CR>

  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]

  Example:       AT "H3 &W<CR>

  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.

                       V.42bis MAXIMUM STRING LENGTH

  Type:          Configuration

  Format:        AT [cmds] "On [cmds]

  Example:       AT "O32 <CR>

  Default:       32

  Range:         6 - 250

  Unit:          Characters

  Description:   Selects string size for V.42bis compression.

                           XON/XOFF PASS-THROUGH

  Type:          Configuration

  Format:        AT [cmds] \Xn [cmds]

  Example:       AT \X7 O<CR>

  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.

