COMPUTER PERIPHERALS, INC.
==========================

   VIVA DATA/FAX INTERNAL

   Modem Type                   Data (asynchronous)/Fax           
   Maximum Data Rate            2400bps                           
   Maximum Fax Rate             9600bps                           
   Data Bus                     8-bit ISA                         
   Fax Class                    Class I                           
   Data Modulation Protocol     Bell 103A/212A                    
                                                                  
                                ITU-T V.21, V.22, V.22bis         
   Fax Modulation Protocol      ITU-T V.27ter, V.29               
   Error Correction/Compression MNP5, V.42bis                     

<gopher://bitreich.org/I/th99/t/C-D/51610-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |      Purpose      | Location |     Purpose      | Location |
   |-------------------+----------+------------------+----------|
   | Line out          |   CN1    | Line in          |   CN2    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |           BASE I/O ADDRESS & INTERRUPT SELECTION           |
   |------------------------------------------------------------|
   |       Port       |        JP2         |        JP3         |
   |------------------+--------------------+--------------------|
   |   COM1: (3F8h)   | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |   COM2: (2F8h)   | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |   COM3: (3E8h)   | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |>> COM4: (2E8h)   | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    INTERRUPT SELECTION                     |
   |------------------------------------------------------------|
   |            IRQ             |              JP1              |
   |----------------------------+-------------------------------|
   |>> 3                        |       Pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |             4              |       Pins 3 & 4 closed       |
   |----------------------------+-------------------------------|
   |             5              |       Pins 5 & 6 closed       |
   |----------------------------+-------------------------------|
   |             7              |       Pins 7 & 8 closed       |
   +------------------------------------------------------------+

                     Proprietary AT Command Set

   +------------------------------------------------------------+
   |                    BIT-MAPPED REGISTERS                    |
   |------------------------------------------------------------|
   |           Register           |           Default           |
   |------------------------------+-----------------------------|
   |             S14              |             170             |
   |------------------------------+-----------------------------|
   |             S16              |              0              |
   |------------------------------+-----------------------------|
   |             S21              |              0              |
   |------------------------------+-----------------------------|
   |             S22              |             118             |
   |------------------------------+-----------------------------|
   |             S23              |              7              |
   |------------------------------+-----------------------------|
   |             S27              |             64              |
   |------------------------------+-----------------------------|
   |             S28              |              0              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      DTMF ATTENUATION                      |
   |------------------------------------------------------------|
   | Type:        | Configuration                               |
   |--------------+---------------------------------------------|
   | Format:      | AT [cmds] %Dn [cmds]                        |
   |--------------+---------------------------------------------|
   | Example:     | AT%D1<CR>                                   |
   |--------------+---------------------------------------------|
   | Default:     | Unidentified                                |
   |--------------+---------------------------------------------|
   | Range:       | Unidentified                                |
   |--------------+---------------------------------------------|
   | Unit:        | 2dB                                         |
   |--------------+---------------------------------------------|
   | Description: | Sets the DTMF level.                        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   SMT LEVEL ATTENTUATION                   |
   |------------------------------------------------------------|
   | Type:        | Configuration                               |
   |--------------+---------------------------------------------|
   | Format:      | AT [cmds] %Ln [cmds]                        |
   |--------------+---------------------------------------------|
   | Example:     | AT%L2<CR>                                   |
   |--------------+---------------------------------------------|
   | Default:     | Unidentified                                |
   |--------------+---------------------------------------------|
   | Range:       | Unidentified                                |
   |--------------+---------------------------------------------|
   | Unit:        | 2dB                                         |
   |--------------+---------------------------------------------|
   | Description: | Sets the SMT level.                         |
   +------------------------------------------------------------+