
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

[Image]

                            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

