UNIDENTIFIED
============

   MULTI I/O PLUS CARD

   Card Type          Multi I/O card                              
   Chipset/Controller Unknown                                     
   I/O Options        Floppy drive interface, game port, parallel 
                      port, serial ports (2)                      
   Maximum DRAM       N/A                                         

<gopher://bitreich.org/I/th99/i/U-Z/50360-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |    Purpose    | Location |       Purpose        | Location |
   |---------------+----------+----------------------+----------|
   | Parallel port |   CN1    | Serial port 1        |   CN4    |
   |---------------+----------+----------------------+----------|
   | Game port     |   CN2    | Floppy drive         |   CN5    |
   |               |          | interface            |          |
   |---------------+----------+----------------------+----------|
   | Serial port 2 |   CN3    |                      |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 SERIAL PORT CONFIGURATION                  |
   |------------------------------------------------------------|
   |        Port 1 (CN4)        |              J1               |
   |----------------------------+-------------------------------|
   |            COM1            |      Pins 13 & 14 closed      |
   |----------------------------+-------------------------------|
   |            COM3            |      Pins 11 & 13 closed      |
   |----------------------------+-------------------------------|
   |          Disabled          |           All open            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 SERIAL PORT CONFIGURATION                  |
   |------------------------------------------------------------|
   |        Port 2 (CN3)        |              J1               |
   |----------------------------+-------------------------------|
   |            COM2            |      Pins 19 & 20 closed      |
   |----------------------------+-------------------------------|
   |            COM4            |      Pins 17 & 19 closed      |
   |----------------------------+-------------------------------|
   |          Disabled          |           All open            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                SERIAL PORT INTERRUPT SELECT                |
   |------------------------------------------------------------|
   |        Port 1 (CN4)        |              J1               |
   |----------------------------+-------------------------------|
   |            IRQ4            |      Pins 10 & 12 closed      |
   |----------------------------+-------------------------------|
   |            IRQ3            |      Pins 9 & 10 closed       |
   |----------------------------+-------------------------------|
   |          Disabled          |           All open            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                SERIAL PORT INTERRUPT SELECT                |
   |------------------------------------------------------------|
   |        Port 2 (CN3)        |              J1               |
   |----------------------------+-------------------------------|
   |            IRQ3            |      Pins 16 & 18 closed      |
   |----------------------------+-------------------------------|
   |            IRQ4            |      Pins 15 & 16 closed      |
   |----------------------------+-------------------------------|
   |          Disabled          |           All open            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                PARALLEL PORT CONFIGURATION                 |
   |------------------------------------------------------------|
   |            LPT             |              J1               |
   |----------------------------+-------------------------------|
   |>> |           1            |       Pins 7 & 8 closed       |
   |---+------------------------+-------------------------------|
   |   |           2            |       Pins 5 & 7 closed       |
   |---+------------------------+-------------------------------|
   |   |        Disabled        |           All open            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  GAME PORT CONFIGURATION                   |
   |------------------------------------------------------------|
   |            Port            |              J1               |
   |----------------------------+-------------------------------|
   |>> |        Enabled         |       Pins 1 & 2 closed       |
   |---+------------------------+-------------------------------|
   |   |        Disabled        |        Pins 1 & 2 open        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    TIMER CONFIGURATION                     |
   |------------------------------------------------------------|
   |           Setting           |              J1              |
   |-----------------------------+------------------------------|
   |       Timer 1 enabled       |      Pins 3 & 4 closed       |
   |-----------------------------+------------------------------|
   |       Timer 2 enabled       |      Pins 4 & 6 closed       |
   |-----------------------------+------------------------------|
   |          Disabled           |           All open           |
   +------------------------------------------------------------+