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       # PRACTICAL PERIPHERALS, INC.
       
          PM288HC II V.34
       
          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.32,        
                                 V.32bis, V.34                           
                                                                         
                                 Rockwell V.FC                           
          Fax Modulation         ITU-T V.17, V.27ter, V.29               
          Protocol               
          Error                  MNP5, V.42, V.42bis                     
          Correction/Compression 
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |      Purpose      | Location |     Purpose      | Location |
          |-------------------+----------+------------------+----------|
          | Line out          |   CN1    | Line in          |   CN2    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 BASE I/O ADDRESS SELECTION                 |
          |------------------------------------------------------------|
          |      Address       |        E1         |        E3         |
          |--------------------+-------------------+-------------------|
          |    COM1: (3F8h)    |      Closed       |      Closed       |
          |--------------------+-------------------+-------------------|
          |    COM2: (2F8h)    |       Open        |      Closed       |
          |--------------------+-------------------+-------------------|
          |    COM3: (3E8h)    |      Closed       |       Open        |
          |--------------------+-------------------+-------------------|
          |    COM4: (2E8h)    |       Open        |       Open        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    INTERRUPT SELECTION                     |
          |------------------------------------------------------------|
          |   IRQ   |     E4     |     E5     |     E6     |    E7     |
          |---------+------------+------------+------------+-----------|
          |    2    |    Open    |    Open    |    Open    |  Closed   |
          |---------+------------+------------+------------+-----------|
          |    3    |   Closed   |    Open    |    Open    |   Open    |
          |---------+------------+------------+------------+-----------|
          |    4    |    Open    |   Closed   |    Open    |   Open    |
          |---------+------------+------------+------------+-----------|
          |    5    |    Open    |    Open    |   Closed   |   Open    |
          +------------------------------------------------------------+
       
                            Proprietary AT Command Set
       
          +------------------------------------------------------------+
          |                           REDIAL                           |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] DL                                |
          |--------------+---------------------------------------------|
          | Example:     | AT M1 DL<CR>                                |
          |--------------+---------------------------------------------|
          | Description: | Redials the last number dialed.             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     REPORT INFORMATION                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] In [cmds]                         |
          |--------------+---------------------------------------------|
          | Example:     | AT I1 &W<CR>                                |
          |--------------+---------------------------------------------|
          | Description: | Displays modem properties.                  |
          |--------------+---------------------------------------------|
          | Command      |                  Function                   |
          |--------------+---------------------------------------------|
          |      I0      | Reports modem model and speed.              |
          |--------------+---------------------------------------------|
          |      I1      | Reports checksum number.                    |
          |--------------+---------------------------------------------|
          |      I2      | Reports checksum result.                    |
          |--------------+---------------------------------------------|
          |      I3      | Reports firmware version.                   |
          |--------------+---------------------------------------------|
          |      I4      | Reports current command settings.           |
          +------------------------------------------------------------+