COMTROL CORPORATION

HOSTESS 554 QUADCABLE, HOSTESS 554 OCTACABLE

Card Type           Serial
Chipset             16554
I/O Options         Serial ports (4 for Quadcable, 8 for Octacable)
Data Bus            16-bit ISA
Card Size           Full-height, half-length

[Image]

                                CONNECTIONS

               Function                               Label

  Serial ports via DB-78 port                          J1

            Note:Standard serial ports are available on an included
            adapter cable.

                        USER CONFIGURABLE SETTINGS

                      Setting                        Label     Position

  Interrupt mask enabled                             SW2/1        On

  Interrupt mask disabled                            SW2/1       Off

                        BASE I/O ADDRESS SELECTION

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

      0000h   On      On      On      On      On      On      On      On

      0020h   Off     On      On      On      On      On      On      On

      0040h   On      Off     On      On      On      On      On      On

      0060h   Off     Off     On      On      On      On      On      On

      0080h   On      On      Off     On      On      On      On      On

  »   0280h   On      On      Off     On     Off      On      On      On

      1F60h   Off     Off     On      Off    Off     Off     Off     Off

      1F80h   On      On      Off     Off    Off     Off     Off     Off

      1FA0h   Off     On      Off     Off    Off     Off     Off     Off

      1FC0h   On      Off     Off     Off    Off     Off     Off     Off

      1FE0h   Off     Off     Off     Off    Off     Off     Off     Off

            Note: A total of 512 base address settings are available. The
            switches are a binary representation of the decimal memory
            addresses. SW1/8 is the Most Significant Bit and switch SW1/1
            is the Least Significant Bit. The switches have the following
            decimal values: SW1/8=4096, SW1/7=2048, SW1/6=1024, SW1/5=512,
            SW1/4=256, SW1/3=128, SW1/2=64, SW1/1=32. Turn off the
            switches and add the values of the switches that are off to
            obtain the correct memory address. (Off=1, On=0)

            SW1/1 must be off on the Octacable card.

                            INTERRUPT SELECTION

  Setting   JP1    SW2/2   SW2/3   SW2/4   SW2/5    SW2/6   SW2/7   SW2/8

    2       Pins    On      Off     Off     Off     Off     Off      Off
            1 &
             2

    3       Pins    Off     On      Off     Off     Off     Off      Off
            1 &
             2

    4       Pins    Off     Off     On      Off     Off     Off      Off
            1 &
             2

    5       Pins    Off     Off     Off     On      Off     Off      Off
            1 &
             2

    7       Pins    Off     Off     Off     Off      On     Off      Off
            1 &
             2

    10      Pins    Off     Off     Off     Off     Off      On      Off
            1 &
             2

    11      Pins    Off     Off     Off     Off     Off     Off      On
            1 &
             2

    12      Pins    Off     Off     Off     Off     Off     Off      Off
            2 &
             3

            Note:Pins designated are in the closed position.