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                     External
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       DC power                 CN4

  Line out                       CN2       Power switch             SW1

  RS-232/422                     CN3

                          DIAGNOSTIC LED(S)

    LED        Color       Status               Condition

     MR         Red          On                Power is on

     MR         Red         Off                Power is off

     TR         Red          On             DTR signal is high

     TR         Red         Off             DTR signal is low

     TD         Red       Blinking      Modem is transmitting data

     TD         Red         Off       Modem is not transmitting data

     RD        Amber      Blinking       Modem is receiving data

     RD        Amber        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

                         Proprietary AT Command Set

                        SUPPORTED STANDARD COMMANDS

                             Basic AT Commands

  +++, ‘comma’, A/

  A, B, 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

      S27        Unidentified

      S36              0

      S40             57

      S42              0

                               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