
BOCA RESEARCH, INC.

SUPER MODEM 2400 (EXT.)

Modem Type             Data (synchronous/asynchronous)
Maximum Data Rate      2400bps
Data Bus               External
Data Modulation        Bell 103A/212A
Protocol
                       ITU-T V.21, V.22, V.22bis

[Image]

                                CONNECTIONS

         Purpose             Location          Purpose           Location

  Line out                     CN1       DC power                  CN4

  Line in                      CN2       Power switch              SW1

  RS-232/422                   CN3

                              SMART/DUMB MODE

               Setting                                JP1

   Smart mode                                       Closed

  Dumb mode                                           Open

  Note: Manufacturers documentation does not specify pin assignments
  corresponding to dumb/smart mode settings.

                          DIAGNOSTIC LED(S)

    LED        Color       Status               Condition

     HS         Red          On         Modem connected at 2400bps

     HS         Red         Off       Modem not connected at 2400bps

     AA         Red          On            Auto-answer enabled

     AA         Red         Off            Auto-answer disabled

     AA         Red       Blinking           Phone is ringing

     CD         Red          On          Carrier signal detected

     CD         Red         Off        Carrier signal not detected

     OH         Red          On             Modem is off-hook

     OH         Red         Off              Modem is on-hook

     RD         Red          On          Modem is receiving data

     RD         Red         Off        Modem is not receiving data

     SD         Red          On         Modem is transmitting data

     SD         Red         Off       Modem is not transmitting data

     TR         Red          On             DTR signal is high

     TR         Red         Off             DTR signal is low

     MR         Red          On                Power is on

     MR         Red         Off                Power is off

                         Proprietary AT Command Set

                          BIT-MAPPED REGISTER S14

  Format                    AT [cmds] S14=n [cmds]

  Example:                  ATS14=138<CR>

  Default:                  138

  Range:                    0-190

  Unit:                     Bit-mapped

  Description:              Controls echo, result codes, result code
                            display, smart/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          Display result codes in numeric format.

                     1        Display result codes in verbose format.

        4            0        Smart mode.

                    1          Dumb mode

        5            0        Tone dial enabled.

                    1          Pulse dial enabled.

        6           0          Not used.

        7           0          Answer mode enabled.

                     1        Originate mode enabled.

  Note: Bit 4 is not used, in the Internal Super Modem 2400.

                          BIT-MAPPED REGISTER S21

  Format                     AT [cmds] S21=n [cmds]

  Example:                   ATS21=56<CR>

  Default:                   56

  Range:                     0 - 189

  Unit:                      Bit-mapped

  Description:               Selects jack type, CTS signal, low DTR
                             action, DCD 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 follows RTS.

                     1          CTS forced high.

       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          Not used.

         7            0        Long Space Disconnect function disabled.

                     1          Long Space Disconnect function enabled.

  Note: Bit 2 is not used, in the Internal Super Modem 2400.

                          BIT-MAPPED REGISTER S22

  Format                    AT [cmds] S22=n [cmds]

  Example:                  ATS22=5<CR>

  Default:                  5

  Range:                    0-126

  Unit:                     Bit-mapped

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

       Bit          Value                       Function

       1, 0         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       Basic result codes only enabled.

                    100         Basic and connection speed result codes
                                enabled.
                    101
                                Basic and connection speed result codes
                    110         and dialtone detection enabled.

                    111         All result codes except dialtone
                                detection enabled.

                                All result codes enabled.

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

                    1           33/67ms at 10pps (Europe)

                          BIT-MAPPED REGISTER S23

  Format                    AT [cmds] S23=n [cmds]

  Example:                  ATS23=54<CR>

  Default:                  54

  Range:                    0-183

  Unit:                     Bit-mapped

  Description:              Grants/denies remote digital loopback,
                            controls DTE rate and parity, and sets guard
                            tone.

       Bit          Value                       Function

        0            0         Remote digital loopback denied.

                    1           Remote digital loopback allowed.

       2, 1         00          Sets serial port speed to 0-300bps.

                    10          Sets serial port speed to 1200bps.

                     11        Sets serial port speed to 2400bps.

        3           0           Not used.

       5,4          00          Parity even.

                    01          Space parity.

                    10          Parity odd.

                     11        No Parity.

       7, 6          00        Guard tone disabled.

                    01          Guard tone disabled.

                    10          Guard tone 1800Hz enabled.

                          BIT-MAPPED REGISTER S27

  Format                  AT [cmds] S27=n [cmds]

  Example:                AT S27=64 <CR>

  Default:                64

  Range:                  0 - 103

  Unit:                   Bit-mapped

  Description:            Selects sync/async mode, Line type, internal
                          clock, and ITU-T/Bell modes.

      Bit        Value                         Function

     1, 0         00        Asynchronous mode.

                 01          Synchronous command mode and synchronous
                             connect mode.
                 10
                             Synchronous command mode and synchronous
                 11          connect mode, DTR dialing enabled.

                             Manual originating a synchronous call.

       2          0         Dial up line.

                 1           Leased line.

       3         0           Not used.

     5, 4         00        Internal DTE transmit clock source.

                 01          External DTE transmit clock source.

                 10          Slave DTE transmit clock source.

       6         0           CCITT mode.

                  1         Bell mode.

                                TEST MODES

  Format                  AT [cmds] S16=n [cmds]

  Example:                ATS16=0<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.

