ZOOM TELEPHONICS, INC.

33.6K EXTERNAL V.34

Card Type                       Modem, Fax
Chip Set                        Unidentified
I/O Options                     Line in (RJ-11), line out (RJ-11), DTE
                                (25-pin serial connector)
Maximum Modem Rate              33.6Kbps
Maximum Fax Rate                14.4Kbps
Data Modulation Protocol        Bell 103A/212A, ITU-T V.21, V.22,
                                V.22bis,V.23, V.32, V.32bis, V.34
Fax Modulation Protocol         V.17, V.21, CH2, V.27ter, V.29, V.33
Error Correction/Compression    MNP5, MNP10, V.42, V.42bis
Fax Class                       Class I & II
Data Bus                        External

[Image]

                                CONNECTIONS

        Function           Label             Function             Label

  Power jack                     CN1       Line in                 CN3

  DTE connector (25-pin          CN2       Line out                CN4
  serial connector)

                             DIAGNOSTIC LED(S)

   LED         Color          Status                 Condition

    OH      Unidentified        On               Modem is off-hook

    OH      Unidentified       Off               Modem is on-hook

    AA      Unidentified        On              Auto-answer enabled

    AA      Unidentified       Off             Auto-answer disabled

    AA      Unidentified     Blinking            Phone is ringing

    RD      Unidentified        On            Modem is receiving data

    RD      Unidentified       Off          Modem is not receiving data

    TD      Unidentified        On          Modem is transmitting data

    TD      Unidentified       Off        Modem is not transmitting data

    TR      Unidentified        On              DTR signal is high

    TR      Unidentified       Off               DTR signal is low

    CD      Unidentified        On            Carrier signal detected

    CD      Unidentified       Off          Carrier signal not detected

    CS      Unidentified        On              CTS signal is high

    CS      Unidentified       Off               CTS signal is low

    EC      Unidentified        On           Error correction enabled

    EC      Unidentified       Off           Error correction disabled

    DC      Unidentified        On           Data compression enabled

    DC      Unidentified       Off           Data compression disabled

   14.4     Unidentified        On          Modem connected at 14.4Kbps

   14.4     Unidentified       Off        Modem not connected at 14.4Kbps

   V.34     Unidentified        On          Modem not connected in V.34
                                                       mode

   V.34     Unidentified       Off         Modem connected in V.34 mode

   FAX      Unidentified        On        Fax connection has been made to
                                                 remote fax modem

   FAX      Unidentified       Off          Fax connection has not been
                                             made to remote fax modem

   MSG      Unidentified        On               Faxes are waiting

   MSG      Unidentified       Off             Faxes are not waiting

    MR      Unidentified        On                  Power is on

    MR      Unidentified       Off                 Power is off

    MR      Unidentified     Blinking       Modem is in self-test mode

                           SUPPORTED COMMAND SET

                             Basic AT Commands

  AT, A/

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

  &C, &K, &M, &T, &V, &W, &Y, &Z

                           Extended AT Commands

  %C, %L, %Q

  \A, \B, \G, \L, \N

  )M

  *H

  -K, -Q

  :E

  +MS

                                S Registers

  S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S14, S16, S18,
  S21, S22, S23, S24

  S25, S26, S27, S28, S29, S31, S32, S33, S38, S40, S41



  Note: See MHI Help File for full command documentation.

 For a full command summary, see ZOOM TELEPHONICS, INC. 28.8K EXTERNAL V.34