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       # ZOOM TELEPHONICS, INC.
       
          56K INTERNAL V.34
       
          Card Type              Modem, Fax                              
          Chip Set               Unidentified                            
          I/O Options            Line in(RJ-11), line out (RJ-11)        
          Maximum Modem Rate     56.0Kbps                                
          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               8-bit ISA                               
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |        Function        |  Label   |   Function   |  Label  |
          |------------------------------------------------------------|
          | Line out                    |    CN1     | Line in  | CN2  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |          Setting           |   Label   |     Position      |
          |----------------------------+-----------+-------------------|
          | Plug and play enabled      |    J2     | Pins 2 & 3 closed |
          |----------------------------+-----------+-------------------|
          | Plug and play disabled     |    J2     | Pins 1 & 2 closed |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    SERIAL PORT ADDRESS                     |
          |------------------------------------------------------------|
          |      Setting       |                  J3                   |
          |--------------------+---------------------------------------|
          |    COM1 (3F8h)     |       Pins 3 & 5, 4 & 6 closed        |
          |--------------------+---------------------------------------|
          |    COM2 (2F8h)     |       Pins 1 & 3, 4 & 6 closed        |
          |--------------------+---------------------------------------|
          |    COM3 (3E8h)     |        Pins 3& 5, 2 & 4 closed        |
          |--------------------+---------------------------------------|
          |    COM4 (2E8h)     |       Pins 1 & 3, 2 & 4 closed        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         INTERRUPT                          |
          |------------------------------------------------------------|
          | Setting  |    J1/A    |    J1/B    |   J1/C    |   J1/D    |
          |----------+------------+------------+-----------+-----------|
          | IR/FONT> |    Open    |    Open    | Pins 1 &  |   Open    |
          |          |            |            |     2     |           |
          |----------+------------+------------+-----------+-----------|
          |   IRQ3   |    Open    | Pins 1 & 2 |   Open    |   Open    |
          |----------+------------+------------+-----------+-----------|
          |   IRQ4   |    Open    |    Open    |   Open    | Pins 3 &  |
          |          |            |            |           |     4     |
          |----------+------------+------------+-----------+-----------|
          |   IRQ5   |    Open    |    Open    |   Open    | Pins 1 &  |
          |          |            |            |           |     2     |
          |----------+------------+------------+-----------+-----------|
          |  IRQ10   |    Open    | Pins 3 & 4 |   Open    |   Open    |
          |----------+------------+------------+-----------+-----------|
          |  IRQ12   |    Open    |    Open    | Pins 3 &  |   Open    |
          |          |            |            |     4     |           |
          |----------+------------+------------+-----------+-----------|
          |  IRQ15   | Pins 3 & 4 |    Open    |   Open    |   Open    |
          |----------+------------+------------+-----------+-----------|
          | Disabled | Pins 1 & 2 |    Open    |   Open    |   Open    |
          |------------------------------------------------------------|
          | Note: Pins designated are in the closed position           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   SUPPORTED COMMAND SET                    |
          |------------------------------------------------------------|
          |                     Basic AT Commands                      |
          |------------------------------------------------------------|
          | AT, A/                                                     |
          |------------------------------------------------------------|
          | A, B, E, H, M, O, P, Q, T, V, W, X, Y, Z                   |
          |------------------------------------------------------------|
          | &C, &T, &W, &Y, &Z                                         |
          |------------------------------------------------------------|
          |                    Extended AT Commands                    |
          |------------------------------------------------------------|
          | %C, %L, %Q                                                 |
          |------------------------------------------------------------|
          | \A, \B, \G, \L, \N                                         |
          |------------------------------------------------------------|
          | -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. 56K EXTERNAL
                                      V.34.