
PRACTICAL PERIPHERALS, INC.

PM2400EFX

Card Type                    Modem (asynchronous)
Chip Set                     Unidentified
Maximum Modem Rate           2400bps
Maximum Fax Rate             9600bps
Data Modulation Protocol     Bell 103/212A, ITU-T V.22, V.22bis
Fax Modulation Protocol      ITU-T V.21CH2, V.27ter, V.29
Error Correction/Compression V.42bis, V.42, MNP5, MNP 10
Fax Class                    Class I & II
Data Bus                     Unidentified
Card Size                    Unidentified

[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)        On            Off

  COM3 (3E8h)       Off            On

  COM4 (2E8h)       Off            Off

                           SUPPORTED COMMAND SET

                             Basic AT Commands

  AT, +++, A/

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

  &T, &V, &W, &Y, &Z

                                S Registers

  S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S30,
  S38, S46

  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

                            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.

      &Q5         V.42 error correction mode

      &Q6         Buffered asynchronous mode

      &Q8         MNP operational mode

      &Q9         LAPM negotiation enabled

                         DATA CARRIER DETECT (DCD)

  Type:          Configuration

  Format:        AT [cmds] &Cn [cmds]

  Description:   Selects whether the DCD option is enabled or disabled

    Command                              Function

      &C0        DCD enabled

      &C1        DCD enabled after carrier signal detected

      &C2        DCD on except during the disconnect process

                         DATA TERMINAL READY (DTR)

  Type:                  Configuration

  Format:                AT [cmds] &Dn [cmds]

  Description:           Selects modem response to DTR

            Note: The action each variant of &D causes depends on the
            setting of &Q

        Command                              Function

          &D0            Modem does not respond to DTR

          &D1            Modem goes to command mode after DTR goes is off

          &D2            Modem goes to command mode and disconnects
                         (hangs up) after DTR goes off; Auto-Answer is
                         disabled.

          &D3            Modem is initialized after DTR goes off

                                   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

          DL             Re-dial last number

          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$             Wait for prompt tone detection function enabled.
                         Waits for prompt tone for amount of time
                         specified by the S7 command.

          D;             Modem returned to idle state after dialing. The
                         semicolon can only be placed at the end of the
                         dial command.

                                DSR OPTIONS

  Type:                  Configuration

  Format:                AT [cmds] &Sn [cmds]

  Description:           Set DSR options

        Command                                Mode

          &S0            Force DSR on

          &S1            Assert DSR during handshaking, turn off DSR in
                         test mode or idle. DSR off on disconnect.

                          FACTORY DEFAULT PROFILE

  Type:             Configuration

  Format:           AT [cmds] &F [cmds]

  Description:      Sets values in active profile to values found in the
                    default profile

     Command                              Function

       &F0          Hayes-compatible settings

       &F1          IBM-compatible settings

                               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

      &K5        Transparent XON/XOFF flow control enabled

                                GUARD TONE

  Type:           Configuration

  Format:         AT [cmds] &Gn [cmds]

  Description:    Command is included for compatibility and performs no
                  function

                                 JACK TYPE

  Type:           Configuration

  Format:         AT [cmds] &Jn [cmds]

  Description:    Command is included for compatibility and performs no
                  function

                                 LINE TYPE

  Type:           Configuration

  Format:         AT [cmds] &Ln [cmds]

  Description:    Command is included for compatibility and performs no
                  function

                            REPORT INFORMATION

  Type:          Immediate

  Format:        AT [cmds] In [cmds]

  Description:   Displays information requested

    Command                              Function

       I1        Reports ROM checksum

       I2        Tests and reports ROM checksum

       I3        Reports firmware revision number

       I4        Reports modem feature availability

                               RESULT CODES

  Type:                  Configuration

  Format:                AT [cmds] Qn [cmds]

  Description:           Enables modem to send result codes to the DTE

        Command                              Function

           Q0            Result code sending enabled

           Q1            Result code sending disabled

           Q2            Modem returns result codes when originating a
                         call, but does not return result codes when
                         answering a call.

                                  RTS/CTS

  Type:           Configuration

  Format:         AT [cmds] &Rn [cmds]

  Description:    Command is included for compatibility and performs no
                  function

                              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

                         TRANSMIT CLOCK SELECTION

  Type:           Configuration

  Format:         AT [cmds] &Xn [cmds]

  Description:    Command is included for compatibility and performs no
                  function

                            S(status) -REGISTERS

                       ERROR CORRECTION NEGOTIATION

  Type:                 Register

  Format                AT [cmds] S36=n [cmds]

  Description:          Selects the action of the modem if it fails to
                        connect with the error-correction protocol set in
                        &Q.

        Command                             Function

         S36=0          Hang up

         S36=1          Attempt a direct connection

         S36=3          Attempt a buffered connection

         S36=4          Attempt a connection at MNP2-4; if that fails,
                        hang up.

         S36=5          Attempt a connection at MNP2-4; if that fails,
                        attempt a direct connection.

         S36=7          Attempt a connection at MNP2-4; if that fails,
                        attempt a buffered connection.

                              DCE LINE SPEED

  Type:                Register

  Format               AT [cmds] S37=n [cmds]

  Description:         Sets the maximum allowable data exchange rate
                       attempted during handshake process.

       Command                              Function

        S37=0          Speed of last connection

        S37=3          300bps

        S37=5          1200bps

        S37=6          2400bps

        S37=7          75/1200bps

                        FEATURE NEGOTIATION OPTIONS

  Type:           Register

  Format:         AT [cmds] S48=n [cmds]

  Description:    Selects active error correction and compression
                  protocols

    Command                              Function

     S48=0        Detection negotiation disabled, XID negotiation
                  disabled

     S48=7        Detection negotiation and XID negotiation enabled

    S48=128       Fall-back to options set in S36

                               BREAK OPTIONS

  Type:                Register

  Format               AT [cmds] S82=n [cmds]

  Description:         Sets the method for break transmission during
                       error-control and ASB connections.

       Command                              Function

        S82=3          In-sequence signaling, timed break sent in
                       sequence with transmitted data

        S82=7          Destructive signaling, buffers cleared,
                       immediately send timed break

       S82=128         In-sequence signaling, timed break sent in
                       sequence with transmitted data

                         CONNECTION FAILURE CODES

  Type:               Register

  Format              AT [cmds] S86? [cmds]

  Description:        Reports codes which correspond to the possible
                      causes of a connection failure

       Value                                Meaning

         0            Normal hang up

         4            Carrier signal lost

         5            No error-control detected for remote modem during
                      feature negotiation

         9            No common protocol found

         12           No failure - remote modem disconnected normally

         13           Remote modem failed to respond after 10
                      re-transmissions same message

         14           Violation of negotiated protocol caused failure

                           EXTENDED RESULT CODES

  Type:                  Register

  Format                 AT [cmds] S95=n [cmds]

  Default:               0

  Range:                 0-255

  Unit:                  Bit-mapped

  Description:           Works in combination with the Wn command to
                         enable extended result codes. Features enabled
                         by S95 take precedence over the options selected
                         by Wn.

         Value                               Meaning

           0             Extended messages disabled

           1             Use DCE speed rather than DTE speed when
                         reporting CONNECT messages

           2             Append /ARQ to CONNECT result message when an EC
                         connection is established

           4             Enable CARRIER messages

           8             Enable PROTOCOL messages

           32            Enable COMPRESSION messages

                          SIGNAL QUALITY OPTIONS

  Type:                  Register

  Format                 AT [cmds] S101=n [cmds]

  Description:           Sets the required signal quality for the fastest
                         speed at which handshaking can occur, as set in
                         S109, when using the V.32bis and V.FC protocols.
                         If the signal quality is below that set by S108,
                         then the modem attempts to connect at the next
                         highest speed selected in S109.

            Note: ATN0 command is used, only the speed set in S37 is used
            during handshaking.

        Command                              Function

           0             MNP level 10 service disabled

           1             MNP level 10 service enabled. Transmit level
                         fixed at -10dBn. Negotiation occurs at
                         mutually-agreed line speed

           3             MNP level 10 service enabled. Transmit level
                         adjusted during retrain/speed shift. Negotiation
                         occurs at mutually-agreed line speed

           5             MNP level 10 services enabled. Transmit level
                         fixed at -10dBm. Negotiation occurs at 1200bps.

           7             MNP level 10 services enabled. Transmit level
                         adjusted during retrain/speed shift. Negotiation
                         occurs at 1200bps.











