
MAXTECH CORPORATION

PCM 336C

Card Type                    Modem/Fax card
Chip Set                     Unidentified
Maximum Modem Rate           33.6Kbps
Maximum Fax Rate             14.4Kbps
Data Modulation Protocol     Bell 103/212A

                             ITU-T V.22bis, V.22, V.23, V.32, V.32bis,
                             V.34, V34+, V.21
Fax Modulation Protocol      ITU-T V.27ter, V.29
Error Correction/Compression MNP5, V.42bis, V.42
Fax Class                    Class I
Data Bus                     PCMCIA

                                                                      54707

                           SUPPORTED COMMAND SET

                             Basic AT Commands

  AT, +++, A/

  A, E, H, M, O, P, Q, T, V, X, Y, Z

  &C, &F, &G, &W, &Y, &Z

                           Extended AT Commands

  \A, \B, \C, \G, \J, \K, \O, \U, \X, \Y, \Z

  %A

  "H

  -J

                             Special Commands

  +MS

                                S Registers

  S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S14, S16, S18,
  S21, S22, S23, S25

  S27, S30, S31, S33, S37

  Note: See MHI Help File for full command documentation.

                         PROPRIETARY AT COMMAND SET

                            AUTO-MODE DETECTION

  Type:                  Configuration

  Format:                AT [cmds] Nn [cmds]

  Description:           Selects various options for the automatic
                         detection and negotiation of protocols during
                         the handshake process if the modem is
                         communicating with a remote modem of dissimilar
                         speed.

        Command                              Function

          N0             Auto-mode detection disabled

          N1             Auto-mode detection enabled

                              AUXILIARY RELAY

  Type:          Configuration

  Format:        AT [cmds] &Jn [cmds]

  Description:   Controls auxiliary relay operations

    Command                              Function

      &J0        Auxiliary relay disabled

      &J1        Auxiliary relay enabled when modem is off hook



                          COMMUNICATION PROTOCOLS

  Type:          Configuration

  Format:        AT [cmds] Bn [cmds]

  Description:   Selects the communication protocol for data calls

    Command                              Protocol

       B0        CCITT mode

       B1        Bell mode

       B2        ITU-T V.23 originate mode; 1200bps receive, 75bps
                 transmit

       B3        ITU-T V.23 originate mode; 75bps receive, 1200bps
                 transmit

                            COMMUNICATIONS MODE

  Type:          Configuration

  Format:        AT [cmds] &Mn [cmds]

  Description:   Selects communications mode

    Command                                Mode

      &M0        Asynchronous mode

                            COMMUNICATIONS MODE

  Type:           Configuration

  Format:         AT [cmds] &Qn [cmds]

  Description:    Selects communications mode options

    Command                                Mode

      &Q0         Asynchronous mode, serial port speed follows connect
                  speed.

                          CONFIGURATION PROFILES

  Type:          Immediate

  Format:        AT [cmds] &V [cmds]

  Description:   Displays active and stored configuration profiles

    Command                              Function

      &V0        Displays active and stored profile 0

      &V1        Displays active and stored profile 1

                           DATA SET READY (DSR)

  Type:          Configuration

  Format:        AT [cmds] &Sn [cmds]

  Description:   Selects DSR options

    Command                              Function

      &S0        DSR forced high

      &S1        DSR high only while modem is handshaking or connected



                         DATA TERMINAL READY (DTR)

  Type:          Configuration

  Format:        AT [cmds] &Dn [cmds]

  Description:   Selects modem response to DTR

    Command                              Function

      &D0        DTR override

      &D1        DTR toggle causes online command mode

      &D2        Normal DTR operations

      &D3        Resets on receipt of DTR

                                   DIAL

  Type:                  Immediate

  Format:                AT [cmds] D<#> [cmds]

  Description:           Dials telephone number according to any
                         modifiers included in the string

  Note:                  Any combination of modifiers can be used to
                         produce the desired dial functions in sequence.

        Command                              Function

          DP             Pulse dialing enabled

          DR             Answer mode enabled; originate mode disabled
                         following handshake initiation.

         DS=n            Dial stored telephone number n

          DT             Tone dialing enabled/Pulse dialing disabled

          DW             Dialing resumed following dial tone detection

          D,             Dialing paused for amount of time specified in
                         S8 register

          D!             Flash function initiated. Modem commanded to go
                         off-hook for specified time before returning
                         on-hook.

          D@             Wait for Quite 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.

                                       EXTENDED RESULT CODES

  Type:               Configuration

  Format:             AT [cmds] Wn [cmds]

  Description:        Enables selection of additional result codes

      Command                                           Function

         W0           Modem reports DTE response codes

         W1           Modem reports DTE response codes

         W2           Modem reports DCE response codes

         W3           Modem reports DTE speed, modulation mode, error control, data compression,
                      and DCE speed

         W4           Modem reports DTE protocol, data compression, and DTE speed



                               FLOW CONTROL

  Type:          Configuration

  Format:        AT [cmds] &Kn [cmds]

  Description:   Enables flow control options

    Command                              Function

      &K0        Flow control disabled

      &K3        RTS/CTS flow control enabled

      &K4        XON/XOFF flow control enabled

                            PULSE DIALING RATIO

  Type:          Configuration

  Format:        AT [cmds] &Pn [cmds]

  Description:   Selects pulse dial make/break ratio

    Command                              Function

      &P0        39/61ms at 10pps (North America)

      &P1        33/67ms at 10pps (Europe)

                            REPORT INFORMATION

  Type:          Immediate

  Format:        AT [cmds] In [cmds]

  Description:   Displays information requested

    Command                              Function

       I0        Reports four digit product code

       I1        Reports ROM checksum

       I2        Reports internal memory test

       I3        Reports device ID

       I4        Reports internal ID

       I5        Reports modem chip hardware configuration

       I6        Reports country code

       I7        Reports board manufacturer firmware version

       I8        Reports modem firmware version

      I10        Reports modem board configuration

                              SPEAKER VOLUME

  Type:          Configuration

  Format:        AT [cmds] Ln [cmds]

  Description:   Controls speaker volume

    Command                              Function

       L0        Low volume setting

       L1        Low volume setting

       L2        Medium volume setting

       L3        Highest volume setting



                                TEST MODES

  Type:          Immediate

  Format:        AT [cmds] &Tn

  Description:   Selects test options

    Command                              Function

      &T0        End current test

      &T1        Begin local analog loopback test

      &T4        Grant remote digital loopback request

      &T5        Deny remote digital loopback request

      &T6        Request remote digital loopback

      &T7        Request remote digital loopback and self-test

      &T8        Begin local analog loopback and self-test

                              TRELLIS CODING

  Type:          Configuration

  Format:        AT [cmds] &Un [cmds]

  Description:   Enables/disables trellis coding

    Command                              Function

      &U0        V.32 trellis coding enabled

      &U1        V.32 trellis coding disabled

                          EXTENDED AT COMMAND SET

                        AUTO-FALLBACK/FALL-FORWARD

  Type:          Configuration

  Format:        AT [cmds] %Gn [cmds]

  Description:   Selects auto-fallback/fall-forward

    Command                              Function

      %G0        Auto-fallback/fall-forward enabled

      %G1        Auto-fallback/fall-forward disabled

                               AUTO-RETRAIN

  Type:          Configuration

  Format:        AT [cmds] %En [cmds]

  Description:   Controls auto-retrain mode and fallback/fall-forward

    Command                              Function

      %E0        Auto-retrain disabled

      %E1        Auto-retrain enabled



                               CALLING TONE

  Type:                  Configuration

  Format:                AT [cmds] -Cn [cmds]

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

        Command                              Function

          -C0            Calling tone disabled

          -C1            1300hz calling tone enabled

          -C2            V.8 and 1300hz calling tone enabled

                                COMPRESSION

  Type:          Configuration

  Format:        AT [cmds] %Cn [cmds]

  Description:   Selects data compression

    Command                              Function

      %C0        Data compression disabled

      %C1        MNP5 enabled

                               CONNECT MODE

  Type:          Configuration

  Format:        AT [cmds] \Nn [cmds]

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

    Command                              Function

      \N0        Normal mode enabled

      \N1        Normal mode enabled

      \N2        Reliable mode enabled

      \N3        Auto-reliable mode enabled

      \N4        V.42 reliable mode enabled

                             FLOW CONTROL TYPE

  Type:          Configuration

  Format:        AT [cmds] \Qn [cmds]

  Description:   Sets type of flow control used by modem

    Command                              Function

      \Q0        Flow control disabled

      \Q1        Bi-directional XON/XOFF flow control enabled

      \Q2        CTS flow control by DCE enabled

      \Q3        Bi-directional RTS/CTS flow control enabled



                             INACTIVITY TIMER

  Type:                  Configuration

  Format:                AT [cmds] \Tn [cmds]

  Range:                 0-90

  Unit:                  1 second

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

                      V.42bis - MAXIMUM STRING LENGTH

  Type:          Immediate

  Format:        AT [cmds] "On [cmds]

  Range:         6-250

  Unit:          Characters

  Description:   Selects string size for V.42bis compression

