ATTACHMATE CORPORATION

SDLC ADAPTER (NEW)

Card Type Serial card
Chip Set  Unidentified
Data Bus  8-bit ISA

[Image]

                CONNECTIONS

       Function               Label

  25-pin serial port           CN1

                    DMA CHANNEL SELECTION

       Channel               JP2                  JP4

          1            Pins 7 & 8 closed   Pins 1 & 2 closed

          2            Pins 5 & 6 closed   Pins 3 & 4 closed

          3            Pins 3 & 4 closed   Pins 5 & 6 closed

        None           Pins 1 & 2 closed   Pins 7 & 8 closed

                        BASE I/O ADDRESS SELECTION

    Setting        SW1/1      SW1/2       SW1/3       SW1/4       SW1/5

         0h         On          On          On          On         On

        20h         On          On          On          On         Off

        40h         On          On          On         Off         On

        60h         On          On          On         Off         Off

        80h         On          On         Off          On         On

  »     300h        Off        Off          On          On         On

        360h        Off        Off          On         Off         Off

        380h        Off        Off         Off          On         On

        3A0h        Off        Off         Off          On         Off

        3C0h        Off        Off         Off         Off         On

        3E0h        Off        Off         Off         Off         Off

            Note: A total of 32 base address settings are available. The
            switches are a binary representation of the decimal memory
            addresses. SW1/10 is the Most Significant Bit and switch
            SW1/5 is the Least Significant Bit. The switches have the
            following decimal values: SW1/5=512, SW1/4=256, SW1/3=128,
            SW1/2=64, SW1/1=326. Turn off the switches and add the values
            of the switches to 512 and convert to hexadecimal to obtain
            the correct memory address. (Off=1, On=0)

     SERIAL PORT INTERRUPT SELECTION

         IRQ                 JP3

        IRQ2          Pins 1 & 2 closed

        IRQ3          Pins 3 & 4 closed

        IRQ4          Pins 5 & 6 closed

        IRQ5          Pins 7 & 8 closed