(TXT) View Source
       
       # LAVA COMPUTER MANUFACTURING, INC.
       
          LAVA RS422-550
       
          Card Type               Multi-I/O card                         
          Chip Set                Unidentified                           
          Maximum Onboard Memory  Unidentified                           
          I/O Options             Serial ports (2 RS-422)                
          Hard Drives supported   None                                   
          Floppy drives supported None                                   
          Data Bus                8-bit ISA                              
          Card Size               Half-length                            
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |       Function       | Label |      Function       | Label |
          |----------------------+-------+---------------------+-------|
          | 9-pin serial port A  |  CN1  | 9-pin serial port B |  CN2  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              SERIAL PORT A ADDRESS SELECTION               |
          |------------------------------------------------------------|
          |          Setting           |              JP3              |
          |----------------------------+-------------------------------|
          |        COM1 (3F8h)         |       Pins 1 & 2 closed       |
          |----------------------------+-------------------------------|
          |        COM2 (2F8h)         |       Pins 2 & 3 closed       |
          |----------------------------+-------------------------------|
          |        COM3 (3E8h)         |       Pins 4 & 5 closed       |
          |----------------------------+-------------------------------|
          |        COM4 (2E8h)         |       Pins 5 & 6 closed       |
          |----------------------------+-------------------------------|
          |          Disabled          |             Open              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              SERIAL PORT B ADDRESS SELECTION               |
          |------------------------------------------------------------|
          |          Setting           |              JP2              |
          |----------------------------+-------------------------------|
          |        COM1 (3F8h)         |       Pins 1 & 2 closed       |
          |----------------------------+-------------------------------|
          |        COM2 (2F8h)         |       Pins 2 & 3 closed       |
          |----------------------------+-------------------------------|
          |        COM3 (3E8h)         |       Pins 4 & 5 closed       |
          |----------------------------+-------------------------------|
          |        COM4 (2E8h)         |       Pins 5 & 6 closed       |
          |----------------------------+-------------------------------|
          |          Disabled          |             Open              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             SERIAL PORT A INTERRUPT SELECTION              |
          |------------------------------------------------------------|
          |            IRQ             |              JP1              |
          |----------------------------+-------------------------------|
          |            IRQ4            |       Pins 1 & 2 closed       |
          |----------------------------+-------------------------------|
          |            IRQ3            |       Pins 2 & 3 closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             SERIAL PORT B INTERRUPT SELECTION              |
          |------------------------------------------------------------|
          |            IRQ             |              JP1              |
          |----------------------------+-------------------------------|
          |            IRQ3            |       Pins 3 & 4 closed       |
          |----------------------------+-------------------------------|
          |            IRQ4            |       Pins 4 & 5 closed       |
          +------------------------------------------------------------+