LAVA COMPUTER MANUFACTURING, INC.
=================================

   LAVA SSERIAL-550

   Card Type               Serial card                            
   Chip Set                Unidentified                           
   Maximum Onboard Memory  N/A                                    
   I/O Options             Serial port                            
   Hard Drives supported   None                                   
   Floppy drives supported None                                   
   Data Bus                8-bit ISA                              
   Card Size               Half-length, half-height               

<gopher://bitreich.org/I/th99/i/I-L/53082-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |        Function        | Label |     Function      | Label |
   |------------------------+-------+-------------------+-------|
   | 25-pin serial port     |  CN1  |                   |       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   SERIAL PORT SELECTION                    |
   |------------------------------------------------------------|
   | Setting | JP1/pins 1  | JP1/pins 2 | JP1/pins 4 | JP1/pins |
   |         |     & 2     |    & 3     |    & 5     |  5 & 6   |
   |---------+-------------+------------+------------+----------|
   |  COM1   |   Closed    |    Open    |    Open    |   Open   |
   |---------+-------------+------------+------------+----------|
   |  COM2   |    Open     |   Closed   |    Open    |   Open   |
   |---------+-------------+------------+------------+----------|
   |  COM3   |    Open     |    Open    |   Closed   |   Open   |
   |---------+-------------+------------+------------+----------|
   |  COM4   |    Open     |    Open    |    Open    |  Closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    INTERRUPT SELECTION                     |
   |------------------------------------------------------------|
   | Setting | JP2/pins 1  | JP2/pins 2 | JP2/pins 4 | JP2/pins |
   |         |     & 2     |    & 3     |    & 5     |  5 & 6   |
   |---------+-------------+------------+------------+----------|
   |  IRQ3   |    Open     |   Closed   |    Open    |   Open   |
   |---------+-------------+------------+------------+----------|
   |  IRQ4   |   Closed    |    Open    |    Open    |   Open   |
   |---------+-------------+------------+------------+----------|
   |  IRQ5   |    Open     |    Open    |   Closed   |   Open   |
   |---------+-------------+------------+------------+----------|
   |  IRQ7   |    Open     |    Open    |    Open    |  Closed  |
   +------------------------------------------------------------+