SOUTH MOUNTAIN TELECOMMUNICATIONS

SM-5743

Card Type                    Fax, Modem (asynchronous)
Chip Set                     Unidentified
Maximum Modem Rate           14.4Kbps
Maximum Fax Rate             14.4Kbps
Data Bus                     8-bit ISA
Fax Class                    Class I & II
Data Modulation Protocol     Bell 103A/212A

                             ITU-T V.21,V.22, V.22bis, V.32, V.32bis
Fax Modulation Protocol      ITU-T V.17, V.21 ch2, V.27ter, V.29
Error Correction/Compression MNP2-5, V.42, V.42bis
Boot ROM                     Not available

[Image]

                                CONNECTIONS

         Function            Label            Function             Label

  Line in                         CN1       Line out                CN2

            SERIAL PORT ADDRESS

    Setting        SW1/1          SW1/2

  COM1 (3F8h)        On            On

  COM2 (2F8h)       Off            On

  COM3 (3E8h)        On            Off

  COM4 (2E8h)       Off            Off

           INTERRUPT

  Setting    SW1/3      SW1/4

     2         On        Off

     3        Off        On

     4         On        On

     5        Off        Off

                         Proprietary AT Command Set

                        SUPPORTED STANDARD COMMANDS

                             Basic AT Commands

  +++, ‘comma’, A/

  A, D, H, L, M, N, O, Q, V, W, X, Z

  &D, &F, &G, &J, &K, &V, &W, &Y, &Z

                           Extended AT Commands

  \A, \B, \G, \K, \V, \X, %A, %C, %E, %L, %Q

                                S-Registers

  S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S26,
  S46, S48

            Note: See MHI documentation for complete information.

  UNIDENTIFIED COMMANDS

   Command      Default

     S37           0

     S42           0

                          COMMUNICATION PROTOCOLS

  Type:                  Configuration

  Format:                AT [cmds] Bn [cmds]

  Description:           Selects the communication protocol for data
                         calls

            Note: The B command allows the simultaneous selection of more
            than one suffix, enabling multiple protocols.

        Command                              Protocol

          B0             ITU-T V.22 at 1200bps

          B1             Bell 212A at 1200bps

          B2             V.23- originate mode receive at 1200bps, send at
                         75bps; answer mode receive at 75bps, send at
                         1200bps

          B3             V.23- originate mode receive at 75bps, send at
                         1200bps; answer mode receive at 1200bps, send at
                         75bps

                               CONNECT MODE

  Type:          Immediate

  Format:        AT [cmds] \Nn [cmds]

  Description:   Controls the type of connection the modem will operate
                 in

    Command                              Function

      \N0         Normal mode enabled

      \N1         Direct mode enabled

      \N2         MNP reliable mode enabled

      \N4         Auto-reliable mode enabled

                            DISPLAY INFORMATION

  Type:          Immediate

  Format:        AT [cmds] In [cmds]

  Description:   Displays information requested about the modem.

    Command                              Function

       I0        Displays product identification code.

       I1        Displays ROM checksum.

       I3        Displays firmware revision.

       I4        Displays product features.

                             INACTIVITY TIMER

  Type:                  Register

  Format                 AT [cmds] S30=n [cmds]

  Default:               0

  Range:                 0-90

  Unit:                  1 minute

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

  Note:                  S30=0 disables the timer and allows indefinite
                         inactivity.

                            V.32 - AUTO-RETRAIN

  Type:            Configuration

  Format:          AT [cmds] &Bn [cmds]

  Description:     Controls auto-retrain function if poor line quality is
                   detected

     Command                             Function

       &B0         Auto-retrain disabled modem hangs-up

       &B1         Auto-retrain enabled if line quality is poor

       &B2         No hang-up, no auto-retrain