LAVA COMPUTER MFG, INC.
=======================

   LAVA DSERIAL-DB9

   Card Type          Serial                                      
   Chipset Controller 16450/16550 UART                            
   I/O Options        Serial port (2)                             
   Maximum Dram       N/A                                         

<gopher://bitreich.org/I/th99/i/I-L/50640-1.png>
   

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

   +------------------------------------------------------------+
   |                SERIAL PORT 1 CONFIGURATION                 |
   |------------------------------------------------------------|
   |       COM        |       JP1/A        |       JP1/B        |
   |------------------+--------------------+--------------------|
   |       COM1       | Pins 1 & 2 closed  |      All open      |
   |------------------+--------------------+--------------------|
   |       COM2       | Pins 2 & 3 closed  |      All open      |
   |------------------+--------------------+--------------------|
   |       COM3       |      All open      | Pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |       COM4       |      All open      | Pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                SERIAL PORT 2 CONFIGURATION                 |
   |------------------------------------------------------------|
   |      COM       |        JP2/A        |        JP2/B        |
   |----------------+---------------------+---------------------|
   |      COM1      |  Pins 1 & 2 closed  |      All open       |
   |----------------+---------------------+---------------------|
   |      COM2      |  Pins 2 & 3 closed  |      All open       |
   |----------------+---------------------+---------------------|
   |      COM3      |      All open       |  Pins 1 & 2 closed  |
   |----------------+---------------------+---------------------|
   |      COM4      |      All open       |  Pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               SERIAL PORT 1 INTERRUPT SELECT               |
   |------------------------------------------------------------|
   |  IRQ  |     JP3     |    JP4     |    JP5     |    JP6     |
   |-------+-------------+------------+------------+------------|
   | IRQ13 | Pins 1 & 2  |  All open  |  All open  |  All open  |
   |       |   closed    |            |            |            |
   |-------+-------------+------------+------------+------------|
   | IRQ12 |  All open   | Pins 1 & 2 |  All open  |  All open  |
   |       |             |   closed   |            |            |
   |-------+-------------+------------+------------+------------|
   | IRQ11 |  All open   |  All open  | Pins 1 & 2 |  All open  |
   |       |             |            |   closed   |            |
   |-------+-------------+------------+------------+------------|
   | IRQ10 |  All open   |  All open  |  All open  | Pins 1 & 2 |
   |       |             |            |            |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               SERIAL PORT 1 INTERRUPT SELECT               |
   |------------------------------------------------------------|
   | IRQ  |     JP7      |    JP8     |    JP9     |    JP10    |
   |------+--------------+------------+------------+------------|
   | IRQ5 |  Pins 1 & 2  |  All open  |  All open  |  All open  |
   |      |    closed    |            |            |            |
   |------+--------------+------------+------------+------------|
   | IRQ2 |   All open   | Pins 1 & 2 |  All open  |  All open  |
   |      |              |   closed   |            |            |
   |------+--------------+------------+------------+------------|
   | IRQ3 |   All open   |  All open  | Pins 1 & 2 |  All open  |
   |      |              |            |   closed   |            |
   |------+--------------+------------+------------+------------|
   | IRQ4 |   All open   |  All open  |  All open  | Pins 1 & 2 |
   |      |              |            |            |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               SERIAL PORT 2 INTERRUPT SELECT               |
   |------------------------------------------------------------|
   |  IRQ  |     JP3     |    JP4     |    JP5     |    JP6     |
   |-------+-------------+------------+------------+------------|
   | IRQ13 | Pins 2 & 3  |  All open  |  All open  |  All open  |
   |       |   closed    |            |            |            |
   |-------+-------------+------------+------------+------------|
   | IRQ12 |  All open   | Pins 2 & 3 |  All open  |  All open  |
   |       |             |   closed   |            |            |
   |-------+-------------+------------+------------+------------|
   | IRQ11 |  All open   |  All open  | Pins 2 & 3 |  All open  |
   |       |             |            |   closed   |            |
   |-------+-------------+------------+------------+------------|
   | IRQ10 |  All open   |  All open  |  All open  | Pins 2 & 3 |
   |       |             |            |            |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               SERIAL PORT 2 INTERRUPT SELECT               |
   |------------------------------------------------------------|
   | IRQ  |     JP7      |    JP8     |    JP9     |    JP10    |
   |------+--------------+------------+------------+------------|
   | IRQ5 |  Pins 2 & 3  |  All open  |  All open  |  All open  |
   |      |    closed    |            |            |            |
   |------+--------------+------------+------------+------------|
   | IRQ2 |   All open   | Pins 2 & 3 |  All open  |  All open  |
   |      |              |   closed   |            |            |
   |------+--------------+------------+------------+------------|
   | IRQ3 |   All open   |  All open  | Pins 2 & 3 |  All open  |
   |      |              |            |   closed   |            |
   |------+--------------+------------+------------+------------|
   | IRQ4 |   All open   |  All open  |  All open  | Pins 2 & 3 |
   |      |              |            |            |   closed   |
   +------------------------------------------------------------+