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

   V.34 I

   Modem Type             Data (synchronous/asynchronous)/Fax     
   Maximum Data Rate      28.8Kbps                                
   Maximum Fax Rate       14.4Kbps                                
   Data Bus               8-bit ISA                               
   Fax Class              Class I & II                            
   Data Modulation        Bell 103A/212A                          
   Protocol                                                       
                          ITU-T V.21, V.22, V.22bis, V.23, V.32,  
                          V.32bis, V.34                           
                                                                  
                          Rockwell V.FC                           
   Fax Modulation         ITU-T V.17, V.21CH2, V.27ter, V.29      
   Protocol               
   Error                  MNP5, V.42, V.42bis                     
   Correction/Compression 

<gopher://bitreich.org/I/th99/t/U-Z/51401-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |    Purpose    | Location |       Purpose        | Location |
   |---------------+----------+----------------------+----------|
   | Line out      |   CN1    | Diagnostic connector |   CN3    |
   |---------------+----------+----------------------+----------|
   | Line in       |   CN2    | Speaker              |   CN4    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 BASE I/O ADDRESS SELECTION                 |
   |------------------------------------------------------------|
   |     Port     | IRQ |            J1            |     J2     |
   |--------------+-----+--------------------------+------------|
   | COM1: (3F8h) |  4  | Pins 2 & 3, 5 & 6 closed | Pins 4 & 5 |
   |              |     |                          |   closed   |
   |--------------+-----+--------------------------+------------|
   | COM2: (3E8h) |  3  | Pins 1 & 2, 5 & 6 closed | Pins 1 & 2 |
   |              |     |                          |   closed   |
   |--------------+-----+--------------------------+------------|
   | COM3: (2F8h) |  4  | Pins 2 & 3, 4 & 5 closed | Pins 4 & 5 |
   |              |     |                          |   closed   |
   |--------------+-----+--------------------------+------------|
   | COM4: (2E8h) |  3  | Pins 1 & 2, 4 & 5 closed | Pins 1 & 2 |
   |              |     |                          |   closed   |
   |--------------+-----+--------------------------+------------|
   | COM3: (2F8h) |  2  | Pins 2 & 3, 4 & 5 closed | Pins 2 & 3 |
   |              |     |                          |   closed   |
   |--------------+-----+--------------------------+------------|
   | COM4: (2E8h) |  2  | Pins 1 & 2, 4 & 5 closed | Pins 2 & 3 |
   |              |     |                          |   closed   |
   |--------------+-----+--------------------------+------------|
   | COM3: (3E8h) |  5  | Pins 2 & 3, 4 & 5 closed | Pins 5 & 6 |
   |              |     |                          |   closed   |
   |--------------+-----+--------------------------+------------|
   | COM4: (2E8h) |  5  | Pins 1 & 2, 4 & 5 closed | Pins 5 & 6 |
   |              |     |                          |   closed   |
   +------------------------------------------------------------+

                     Proprietary AT Command Set

           See document V1397 for a full command summary.