
PRACTICAL PERIPHERALS, INC.

PC PCMCIA 144, PC PCMCIA 144 EZ-PORT

Card Type                    Modem (asynchronous)
Chip Set                     Unidentified
Maximum Modem Rate           14.4Kbps
Maximum Fax Rate             14.4Kbps
Data Modulation Protocol     Bell 103/212A

                             ITU-T V.21, V.22, V.22bis, V.32, V.32bis
Fax Modulation Protocol      ITU-T V.17, V.27ter, V.29
Error Correction/Compression MNP5, V.42, V.42bis
Fax Class                    Class I & II
Data Bus                     PCMCIA

                                                                      54796

                           SUPPORTED COMMAND SET

                             Basic AT Commands

  AT, +++, A/

  A, D, E, F, H, M, V, W, X, Y, Z

  &A, &V, &W, &Y, &Z

                                S Registers

  S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S30,
  S36, S37,

  S38, S46, S48, S82, S86, S95, S99, S108, S109, S110, 201

  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             Originate or answer: handshake only at speed in
                         S37

          N1             Negotiate highest common speed starting in S37

                              CODE MODULATION

  Type:          Immediate

  Format:        AT [cmds] &Un

  Description:   Control trellis code modulation

    Command                              Function

      &U0        Trellis coding enabled

      &U1        Trellis coding disabled

                            COMMUNICATIONS MODE

  Type:          Configuration

  Format:        AT [cmds] &Qn [cmds]

  Description:   Selects communications mode options

    Command                                Mode

      &Q0        Asynchronous mode

      &Q4        Auto-synchronous mode

      &Q5        Error correction mode

      &Q6        Buffered asynchronous mode

      &Q8        MNP mode

      &Q9        V.42bis data compression enabled, MNP5 disabled

                          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 300 or 1200bps

          B1             Bell 212A at 300 or 1200bps

          B15            ITU-T V.21 at 300bps

          B16            Bell 103 at 300bps

                         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 disconnect

                         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 UP MODE

  Type:          Configuration

  Format:        AT [cmds] &Ln [cmds]

  Description:   Sets the dial up mode

    Command                             Line Type

      &L0        Select dial up mode

                           DATA SET READY (DSR)

  Type:          Configuration

  Format:        AT [cmds] &Sn [cmds]

  Description:   Selects DSR options

    Command                              Function

      &S0        DSR forced high

                          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          Hays-compatible settings

       &F1          IBM-compatible settings

       &F2          Macintosh software handshake settings

       &F3          Macintosh hardware handshake settings

                               FLOW CONTROL

  Type:          Configuration

  Format:        AT [cmds] &Kn [cmds]

  Description:   Enables flow control options

    Command                              Function

      &K0        Flow control disabled

      &K1        RTS to CTS flow control enabled

      &K2        XON/XOFF flow control enabled

      &K3        RTS/CTS flow control enabled

      &K4        XON/XOFF flow control enabled

                                GUARD TONE

  Type:           Configuration

  Format:         AT [cmds] &Gn [cmds]

  Description:    Commands the modem to transmit a guard tone in
                  V.22/V.22bis

            Note: Used primarily for international data transmission

    Command                              Function

      &G0         Guard tone disabled

                                   HELP

  Type:          Configuration

  Format:        AT [cmds] $Hn [cmds]

  Description:   Displays the help templates for the $ commands

                                  ON-LINE

  Type:           Immediate

  Format:         AT [cmds] On [cmds]

  Description:    Controls on-line command (data transmission) state
                  options.

            Note: The O command must be placed at the end of the command
            string.

     Command                             Function

       O0         On-line command mode with no retraining enabled

       O1         On-line command mode with retraining enabled

       O3         On-line command mode with rate negotiation

                            REPORT INFORMATION

  Type:          Immediate

  Format:        AT [cmds] In [cmds]

  Description:   Displays information requested

    Command                              Function

       I0        Reports modem product code

       I1        Reports ROM checksum

       I2        Reports OK or ERROR

       I3        Reports modem firmware revision number

       I4        Reports a number series representing feature bit map

       I6        Reports data connection information

                               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        Result code sending in originate mode only

                              SPEAKER VOLUME

  Type:             Configuration

  Format:           AT [cmds] Ln [cmds]

  Description:      Command is included for compatibility only, it
                    performs no function.

                            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           Auto-retrain enabled disconnect if no line
                       improvement over period indicated in S7

                            S(status) -REGISTERS

                                 DCE SPEED

  Type:          Register

  Format         AT [cmds] S43=n [cmds]

  Description:   Displays the current DCE speed

                              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=1          75bps

        S37=2          110bps

        S37=3          300bps

        S37=4          600bps

        S37=5          1200bps

        S37=6          2400bps

        S37=7          4800bps

        S37=8          7200bps

        S37=9          9600bps

       S37=10          12.0Kbps

       S37=11          14.4Kbps

                           CIRCUIT CARRIER LEVEL

  Type:           Register

  Format:        AT [cmds] S63=n [cmds]

  Range:         0-15dBm

  Description:   Private circuit carrier level selection

                         AUTOMODE AND PROBE TIMING

  Type:          Register

  Format:        AT [cmds] S97=n [cmds]

  Default:       30

  Range:         15-70

  Unit:          0.1 seconds

  Description:   V.32 Automode. V.22/V.22bis Probe Timing

                             DISTINCTIVE RING

  Type:          bit map

  Format:        AT [cmds] S101=n [cmds]

  Default:       00

  Range:         0-255

  Unit:          bit map

  Description:   Selects distinctive ring setting

                                PACKET SIZE

  Type:          Register

  Format         AT [cmds] S136=n [cmds]

  Default:       1

  Range:         0-2

  Description:   Selects LAPM packet size







