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       # BEST UNION ELECTRONICS CO., LTD.
       
          MM AUDIO TELEPHONY 3100
       
          Card Type       Sound card                                     
          Chip Set        Unidentified                                   
          Maximum Onboard None                                           
          Memory          
          I/O Options     Game/MIDI port, line in, line out, microphone, 
                          telephone                                      
          Data Bus        16-bit ISA                                     
          Floppy drives   None                                           
          supported       
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |      Function       | Label  |      Function      | Label  |
          |---------------------+--------+--------------------+--------|
          | 4-pin connector     |  CN1   | Game/MIDI port     |  CN7   |
          |---------------------+--------+--------------------+--------|
          | 4-pin connector     |  CN2   | Telephone          |   J1   |
          |---------------------+--------+--------------------+--------|
          | 4-pin connector     |  CN3   | Line in            |   J2   |
          |---------------------+--------+--------------------+--------|
          | 4-pin connector     |  CN4   | Microphone         |   J3   |
          |---------------------+--------+--------------------+--------|
          | 3-pin connector     |  CN5   | Line out           |   J4   |
          |---------------------+--------+--------------------+--------|
          | 4-pin connector     |  CN6   |                    |        |
          |------------------------------------------------------------|
          | Note: The exact function & purpose of CN1 - CN6 is         |
          | unidentified.                                              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Label  |  Position  |
          |--------------------------------------+--------+------------|
          | » | I/O port address is 220h - 22Fh  | JMPBO  | Pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | I/O port address is 240h - 24Fh  | JMPBO  | Pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | EEPROM hardware settings enabled | JMPCFG | Pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | EEPROM hardware settings         | JMPCFG | Pins 2 & 3 |
          |   | disabled                         |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Condenser microphone select      |  JX1   | Pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Carbon microphone select         |  JX1   | Pins 2 & 3 |
          |   |                                  |        |   closed   |
          +------------------------------------------------------------+