
ZOOM TELEPHONICS, INC.

PCMCIA 14400

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

                             ITU-T V.21, V.22, V.22bis, V.23, V.32,
                             V.32bis
Fax Modulation Protocol      ITU-T V.17, V.21CH2, V.27ter, V.29
Error Correction/Compression MNP10, V.42bis

                                                                      V1920

                         Proprietary AT Command Set

                 AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD

  Type:          Configuration

  Format:        AT [cmds] %En [cmds]

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

    Command                              Function

      %E0        Auto-retrain disabled

      %E1        Auto-retrain enabled

      %E2        Auto-fallback/fall-forward enabled

      %E3        Auto-retrain enabled with fast hang-up

      BIT MAPPED REGISTERS

    Register        Default

      S14        Unidentified

      S16        Unidentified

      S21        Unidentified

      S22        Unidentified

      S23        Unidentified

      S27        Unidentified

      S28        Unidentified

      S31        Unidentified

      S40        Unidentified

      S41        Unidentified

                                BREAK SEND

  Type:          Configuration

  Format:        AT [cmds] \Bn [cmds]

  Default:       3

  Range:         1-9

  Unit:          .1 second

  Description:   Sends break to modem

                                BREAK TYPE

  Type:          Configuration

  Format:        AT [cmds] \Kn [cmds]

  Description:   Configures action of break signal

                                COMPRESSION

  Type:          Configuration

  Format:        AT [cmds] %Cn [cmds]

  Description:   Selects data compression

    Command                              Function

      %C0        Data compression disabled

      %C1        MNP5 enabled

      %C2        V.42bis enabled

      %C3        MNP5 and V.42bis 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        Direct mode enabled

      \N2        Reliable mode enabled

      \N3        Auto-reliable mode enabled

      \N4        LAP-M error correcting only enabled

      \N5        MNP error correcting only enabled

                                   DIAL

  Type:                   Immediate

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

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

        Modifier                             Function

           L              Redials last number

           P              Pulse dialing enabled

           T              Tone dialing enabled

           W              Dialing resumed following dial tone detection

           ,              Dialing paused for amount of time specified in
                          S8 register

           @              Modem waits for a ring-back signal followed by
                          silence up to 5 second prior to executing the
                          rest of the dial string.

           R              Command recognized and not initiated

           ;              Modem returned to command mode after dialing.

           !              Flash function initiated. Goes on-hook for
                          amount of time specified in S29 register

        S=(0-3)           Number in memory location &Zn dialed

           ^              Calling tone enabled, data mode only.

                               FLOW CONTROL

  Type:          Configuration

  Format:        AT [cmds] \Gn [cmds]

  Description:   Selects modem port flow control

    Command                              Function

      \G0        Flow control disabled

      \G1        Flow control enabled

                               FLOW CONTROL

  Type:          Register

  Format:        AT [cmds] S39=n [cmds]

  Description:   Select the type of flow control used

    Command                              Function

     S39=0        Flow control disabled

     S39=3        Hardware flow control enabled

     S39=4        Software flow control enabled

     S39=5        Transparent software flow control enabled

     S39=6        Both hardware and software flow control enabled

                             LINE SIGNAL LEVEL

  Type:             Immediate

  Format:           AT [cmds] %L [cmds]

  Description:      Returns a value which indicates the received line
                    signal level (-dBm)

                            LINE SIGNAL QUALITY

  Type:          Immediate

  Format:        AT [cmds] %Q [cmds]

  Description:   Returns a value which indicates line signal quality

                    MAXIMUM BLOCK SIZE FOR TRANSMISSION

  Type:          Configuration

  Format:        AT [cmds] \An [cmds]

  Description:   Sets the maximum transmittable block size

    Command                              Function

      \A0        MNP block size is 64 characters

      \A1        MNP block size is 128 characters

      \A2        MNP block size is 192 characters

      \A3        MNP block size is 256 characters

                          MNP - STREAM/BLOCK MODE

  Type:          Configuration

  Format:        AT [cmds] \Ln [cmds]

  Description:   Selects the transfer mode for MNP link

    Command                              Function

      \L0        Stream mode for MNP enabled

      \L1        Block mode for MNP enabled

                         MNP10 - EXTENDED SERVICES

  Type:          Configuration

  Format:        AT [cmds] -Kn [cmds]

  Description:   Selects MNP10 extended services

    Command                              Function

      -K0        MNP10 disabled

      -K1        MNP10 enabled

      -K2        MNP10 enabled on originate mode only

                             MNP10 - FALLBACK

  Type:          Configuration

  Format:        AT [cmds] -Qn [cmds]

  Description:   Allows MNP10 to fall back to speeds slower than 4800bps

    Command                              Function

      -Q0        MNP10 at 2400 and 1200bps disabled

      -Q1        MNP10 at 2400 and 1200bps enabled

                         MNP10 - LINK NEGOTIATION

  Type:          Configuration

  Format:        AT [cmds] *Hn [cmds]

  Description:   Sets the speed at which MNP10 link negotiation will
                 occur

    Command                              Function

      *H0        Link will be negotiated at highest possible speed

      *H1        Link will be negotiated at 1200bps

      *H2        Link will be negotiated at 4800bps

                        MNP10 - POWER LEVEL ADJUST

  Type:                Configuration

  Format:              AT [cmds] )Mn [cmds]

  Description:         Controls automatic transmit power level adjustment
                       during MNP 10 link negotiation

       Command                              Function

         )M0           Power level adjustment disabled

         )M1           Power level adjustment enabled

                       TRANSMISSION LEVEL - CELLULAR

  Type:           Configuration

  Format:         AT [cmds] @Mn [cmds]

  Default:        0

  Range:          11-31

  Unit:           -1 dBm

  Description:    Sets the signal level for transmission while in
                  cellular mode

    Command                              Function

      @M0         -26 dBm

      @M1         -30 dBm

    @M2-@M10      -10 dBm

                        V.32 - COMPROMISE EQUALIZER

  Type:          Configuration

  Format:        AT [cmds] :En [cmds]

  Description:   Controls V.32 compromise equalizer

    Command                              Function

      :E0        Equalizer disabled

      :E1        Equalizer enabled

