SDL COMMUNICATIONS, INC.

RISCOM/SI, RISCOM/E1

Card Type                  Serial
Processor                  80C186
Processor Speed            16MHz
Chip Set                   Cirrus Logic CD2401
Maximum Onboard Memory     1MB
I/O Options                Serial ports (number and type depend on daughter
                           board installed)
Data Bus                   16-bit ISA

[Image]

                  CONNECTIONS

        Function                 Label

  Daughterboard header            CN1

                        USER CONFIGURABLE SETTINGS

                  Function                      Label        Position

  »   Factory configured - do not alter          S1/7           N/A

  »   Card uses 8-bit data bus                   S1/8           Off

      Card uses 16-bit data bus                  S1/8           On

                                 INTERRUPT

            J1 is used to set the interrupt. Exact settings are
            unidentified. Interrupts 3, 4, 5, 9, 10, 11, 12, and 15 are
            available.

                             BASE I/O ADDRESS

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

       100h      On        On        On         On       Off        On

       110h      Off       On        On         On       Off        On

       120h      On        Off       On         On       Off        On

       130h      Off       Off       On         On       Off        On

       140h      On        On        Off        On       Off        On

  »    300h      On        On        On         On       Off        Off

       3B0h      Off       Off       On        Off       Off        Off

       3C0h      On        On        Off       Off       Off        Off

       3D0h      Off       On        Off       Off       Off        Off

       3E0h      On        Off       Off       Off       Off        Off

       3F0h      Off       Off       Off       Off       Off        Off

            Note: A total of 48 base address settings are available. The
            switches are a binary representation of the decimal memory
            addresses. SW1/6 is the Most Significant Bit and switch SW1/1
            is the Least Significant Bit. The switches have the following
            decimal values: SW1/6=512, SW1/5=256, SW1/4=128, SW1/3=64,
            SW1/2=32, SW1/1=16. Turn off the switches and add the values
            of the switches to obtain the correct memory address. (Off=1,
            On=0)

                          DIAGNOSTIC LED(S)

            The functions and colors of the LEDs are unidentified.