MULTI-TECH SYSTEMS, INC.

ISI1508PC

Card Type          Serial controller
Chipset/Controller Unidentified
I/O Options        Serial ports (8)
Maximum DRAM       N/A

[Image]

             CONNECTIONS

      Purpose           Location

  DB-78 connector         CN1

                      I/O ADDRESS SELECT (REVISION A)

  Address    SW1/1  SW1/2   SW1/3   SW1/4   SW1/5   SW1/6   SW1/7   SW1/8

  »   200h   Off     Off     Off     Off     Off    Off     Off      On

      100h   Off     Off     Off     Off     Off    Off      On      Off

      108h   Off     On      Off     Off     Off    Off     Off      Off

      110h   Off     Off     On      Off     Off    Off      On      Off

      118h   Off     On      On      Off     Off    Off      On      Off

      120h   Off     Off     Off     On      Off    Off      On      Off

      3D8h   Off     On      On      Off     On      On      On      On

      3E0h    On     On      On      Off     Off    Off     Off      Off

      3E8h   Off     On      Off     On      On      On      On      On

      3F0h   Off     Off     On      On      On      On      On      On

      3F8h   Off     On      On      On      On      On      On      On

       Note:A total of 96 address settings are available. The switches
       are a binary representation of the decimal addresses. Switch 1 is
       the Least Significant bit and switch 8 is the Most Significant
       bit. The switches have the following decimal values: switch 1=1,
       2=2, 3=4, 4=8, 5=16, 6=32, 7=64, 8=128. Turn Off the switches and
       add the values of the Off switches to obtain the correct address.

                      I/O ADDRESS SELECT (REVISION B)

  Address    SW1/1  SW1/2   SW1/3   SW1/4   SW1/5   SW1/6   SW1/7   SW1/8

  »   200h   Off     Off     Off     Off     Off    Off      On      Off

      100h   Off     Off     Off     Off     Off     On     Off      Off

      108h    On     Off     Off     Off     Off     On     Off      Off

      110h   Off     On      Off     Off     Off     On     Off      Off

      118h    On     On      Off     Off     Off     On     Off      Off

      120h   Off     Off     On      Off     Off     On     Off      Off

      3D8h    On     On      Off     On      On      On      On      Off

      3E0h   Off     Off     On      On      On      On      On      Off

      3E8h    On     Off     On      On      On      On      On      Off

      3F0h   Off     On      On      On      On      On      On      Off

      3F8h    On     On      On      On      On      On      On      Off

       Note:A total of 96 address settings are available. The switches
       are a binary representation of the decimal addresses. Switch 1 is
       the Least Significant bit and switch 8 is the Most Significant
       bit. The switches have the following decimal values: switch 1=1,
       2=2, 3=4, 4=8, 5=16, 6=32, 7=64, 8=128. Turn Off the switches and
       add the values of the Off switches to obtain the correct address.

                             INTERRUPT SELECT

     IRQ       J1/A       J1/B      J1/C      J1/D      J1/E       J1/F

  »   IRQ3     Open      Closed     Open      Open      Open       Open

      IRQ2    Closed      Open      Open      Open      Open       Open

      IRQ4     Open       Open     Closed     Open      Open       Open

      IRQ5     Open       Open      Open     Closed     Open       Open

      IRQ6     Open       Open      Open      Open     Closed      Open

      IRQ7     Open       Open      Open      Open      Open      Closed