
MULTI-TECH SYSTEMS, INC.

ISI4608PC

Card Type               Serial card
Chip Set                Unidentified
Maximum Onboard Memory  Unidentified
I/O Options             Serial ports (8) via octopus cable
Hard Drives supported   None
Floppy drives supported None
Data Bus                16-bit ISA
Card Size               Three-quarter length, full-height

[Image]

              CONNECTIONS

      Function             Label

  72 pin connector          CN1

                        BASE I/O ADDRESS SELECTION

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

      100h   On      On      On      On      On     Off      On      On

      108h   Off    On       On      On      On     Off      On      On

      110h   On      Off     On      On      On     Off      On      On

      118h   Off     Off     On      On      On     Off      On      On

      120h   On      On      Off     On      On     Off      On      On

      128h   Off     On      Off     On      On     Off      On      On

     200h   On      On      On      On      On      On     Off      On

      3D8h   Off     Off     On      Off    Off     Off     Off      On

      3E0h   On      On      Off     Off    Off     Off     Off      On

      3E8h   Off     On      Off     Off    Off     Off     Off      On

      3F0h   On      Off     Off     Off    Off     Off     Off      On

      3F8h   Off     Off     Off     Off    Off     Off     Off      On

                                   Note:

  A total of 255 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=1024, SW1/7=512,
  SW1/6=256, SW1/5=128, SW1/4=64, SW1/3=32, SW1/2=16, SW1/1=8. Turn off
  the switches and add the values of the switches to obtain the correct
  memory address. (Off=1, On=0)

                      SERIAL PORT INTERRUPT SELECTION

                 IRQ                                  JP1

                    2                          Pins 1 & 2 closed

                   3                          Pins 3 & 4 closed

                    4                          Pins 5 & 6 closed

                    5                          Pins 7 & 8 closed

                    7                          Pins 9 & 10 closed

                    10                        Pins 11 & 12 closed

                    11                        Pins 13 & 14 closed

                    12                        Pins 15 & 16 closed

                    15                        Pins 17 & 18 closed

