ZOOM TELEPHONICS, INC.
======================



   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        Bell 103A/212A, ITU-T V.21, V.22,       
   Protocol               V.22bis,V.23, V.32, V.32bis, V.34       
   Fax Modulation         V.17, V.21, CH2, V.27ter, V.29, V.33    
   Protocol               
   Error                  MNP5, MNP10, V.42, V.42bis              
   Correction/Compression 
   Fax Class              Class I & II                            
   Data Bus               External                                

<gopher://bitreich.org/I/th99/t/U-Z/54668-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |       Function        |   Label    |   Function   | Label  |
   |------------------------------------------------------------|
   | Power jack                     |   CN1    | Line in  | CN3 |
   |--------------------------------+----------+----------+-----|
   | DTE connector (25-pin serial   |   CN2    | Line out | CN4 |
   | 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