BOCA RESEARCH, INC.
===================

   IO650

   Card Type          Serial Card                                 
   Chipset/Controller Unidentified                                
   I/O Options        Serial ports (2)                            
   Maximum DRAM       N/A                                         

<gopher://bitreich.org/I/th99/i/A-B/51452-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |      Purpose      | Location |     Purpose      | Location |
   |-------------------+----------+------------------+----------|
   | Serial port 1     |   CN1    | Serial port 2    |   CN2    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                SERIAL PORT 1 CONFIGURATION                 |
   |------------------------------------------------------------|
   |     COM      |       J7/A        |    J7/B    |     J4     |
   |--------------+-------------------+------------+------------|
   |>> |   COM3   | Pins 2 & 3 closed | Pins 1 & 2 | Pins 2 & 3 |
   |   |          |                   |   closed   |   closed   |
   |---+----------+-------------------+------------+------------|
   |   |   COM1   | Pins 1 & 2 closed | Pins 1 & 2 | Pins 2 & 3 |
   |   |          |                   |   closed   |   closed   |
   |---+----------+-------------------+------------+------------|
   |   |   COM2   | Pins 1 & 2 closed | Pins 2 & 3 | Pins 2 & 3 |
   |   |          |                   |   closed   |   closed   |
   |---+----------+-------------------+------------+------------|
   |   |   COM4   | Pins 2 & 3 closed | Pins 2 & 3 | Pins 2 & 3 |
   |   |          |                   |   closed   |   closed   |
   |---+----------+-------------------+------------+------------|
   |   | Disabled |        N/A        |    N/A     | Pins 1 & 2 |
   |   |          |                   |            |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                SERIAL PORT 2 CONFIGURATION                 |
   |------------------------------------------------------------|
   |     COM      |       J6/A        |    J6/B    |     J5     |
   |--------------+-------------------+------------+------------|
   |>> |   COM4   | Pins 2 & 3 closed | Pins 2 & 3 | Pins 2 & 3 |
   |   |          |                   |   closed   |   closed   |
   |---+----------+-------------------+------------+------------|
   |   |   COM3   | Pins 2 & 3 closed | Pins 1 & 2 | Pins 2 & 3 |
   |   |          |                   |   closed   |   closed   |
   |---+----------+-------------------+------------+------------|
   |   |   COM1   | Pins 1 & 2 closed | Pins 1 & 2 | Pins 2 & 3 |
   |   |          |                   |   closed   |   closed   |
   |---+----------+-------------------+------------+------------|
   |   |   COM2   | Pins 1 & 2 closed | Pins 2 & 3 | Pins 2 & 3 |
   |   |          |                   |   closed   |   closed   |
   |---+----------+-------------------+------------+------------|
   |   | Disabled |        N/A        |    N/A     | Pins 1 & 2 |
   |   |          |                   |            |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             SERIAL PORT 1 INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |     IRQ     |   J2/A    |   J2/B    |   J2/C    |   J2/D   |
   |-------------+-----------+-----------+-----------+----------|
   |>> |  IRQ5   |   Open    |   Open    |  Closed   |   Open   |
   |---+---------+-----------+-----------+-----------+----------|
   |   |  IRQ3   |  Closed   |   Open    |   Open    |   Open   |
   |---+---------+-----------+-----------+-----------+----------|
   |   |  IRQ4   |   Open    |  Closed   |   Open    |   Open   |
   |---+---------+-----------+-----------+-----------+----------|
   |   |  IRQ9   |   Open    |   Open    |   Open    |  Closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             SERIAL PORT 2 INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |     IRQ     |   J3/A    |   J3/B    |   J3/C    |   J3/D   |
   |-------------+-----------+-----------+-----------+----------|
   |>> |  IRQ9   |   Open    |   Open    |   Open    |  Closed  |
   |---+---------+-----------+-----------+-----------+----------|
   |   |  IRQ3   |  Closed   |   Open    |   Open    |   Open   |
   |---+---------+-----------+-----------+-----------+----------|
   |   |  IRQ4   |   Open    |  Closed   |   Open    |   Open   |
   |---+---------+-----------+-----------+-----------+----------|
   |   |  IRQ5   |   Open    |   Open    |  Closed   |   Open   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |        SERIAL PORT I/O ADDRESS SELECTION/CLOCK SET         |
   |------------------------------------------------------------|
   |Address Pair | J1/A  | J1/B  | J1/C  | J1/D  | J1/E  | J1/F |
   |-------------+-------+-------+-------+-------+-------+------|
   |>>|2C0h, 2C8h |Closed |Closed | Open  | Open  | Open  | Open |
   |-+-----------+-------+-------+-------+-------+-------+------|
   | |2D0h, 2D8h | Open  | Open  |Closed |Closed | Open  | Open |
   |-+-----------+-------+-------+-------+-------+-------+------|
   | |3C0h, 3C8h | Open  | Open  | Open  | Open  |Closed |Closed|
   +------------------------------------------------------------+