SYNERGY SOLUTIONS

SS-558

Card Type               Serial card
Chipset Controller      16C554 UART (2)
I/O Options             Serial port (8 serial port connectors on external
                        cable)
Maximum DRAM            N/A

[Image]

                                CONNECTIONS

               Purpose                              Location

  78-pin serial port interface                        CN1
  connector

           BANK A SERIAL PORT INTERRUPT SELECTION (PORTS 1 - 4)

    IRQ        S2/1      S2/2      S2/3      S2/4       S2/5       S2/6

  »    5       Off       Off        Off       On        Off        Off

       2        On       Off        Off       Off       Off        Off

       3       Off        On        Off       Off       Off        Off

       4       Off       Off        On        Off       Off        Off

       6       Off       Off        Off       Off        On        Off

       7       Off       Off        Off       Off       Off         On

           BANK B SERIAL PORT INTERRUPT SELECTION (PORTS 5 - 8)

    IRQ        S4/1      S4/2      S4/3      S4/4       S4/5       S4/6

  »    5       Off       Off        Off       On        Off        Off

       2        On       Off        Off       Off       Off        Off

       3       Off        On        Off       Off       Off        Off

       4       Off       Off        On        Off       Off        Off

       6       Off       Off        Off       Off        On        Off

       7       Off       Off        Off       Off       Off         On

                         SERIAL PORT CONFIGURATION

                   IRQB                                 S4/7

  Single interrupt selected on S2 Bank A                 On
           for all eight ports

    All ports not using same interrupt                  Off

  Note: This switch work in conjunction with the setting of interrupts
  for Bank A (S2) & Bank B (S4).

           BASE I/O ADDRESS SELECTION (BANK A SERIAL PORT 1 - 4)

   Address      S1/1    S1/2     S1/3    S1/4     S1/5    S1/6     S1/7

  »    100h      On      On       On      Off      On      On       On

       120h     Off      On       On      Off      On      On       On

       140h      On      Off      On      Off      On      On       On

       160h     Off      Off      On      Off      On      On       On

       180h      On      On      Off      Off      On      On       On

      0F60h     Off      Off      On      Off     Off      Off      Off

      0F80h      On      On      Off      Off     Off      Off      Off

      0FA0h     Off      On      Off      Off     Off      Off      Off

      0FC0h      On      Off     Off      Off     Off      Off      Off

      0FE0h     Off      Off     Off      Off     Off      Off      Off

       Note: A total of 128 base address settings are available. The
       switches are a binary representation of the decimal memory
       addresses. S1/7 is the Most Significant Bit and switch S1/1 is the
       Least Significant Bit. The switches have the following decimal
       values: S1/7=2048, S1/6=1024, S1/5=512, S1/4=256, S1/3=128,
       S1/2=64, S1/1=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)

           BASE I/O ADDRESS SELECTION (BANK B SERIAL PORT 5 - 8)

   Address      S3/1    S3/2     S3/3    S3/4     S3/5    S3/6     S3/7

  »    120h     Off      On       On      Off      On      On       On

       100h      On      On       On      Off      On      On       On

       140h      On      Off      On      Off      On      On       On

       160h     Off      Off      On      Off      On      On       On

       180h      On      On      Off      Off      On      On       On

      0F60h     Off      Off      On      Off     Off      Off      Off

      0F80h      On      On      Off      Off     Off      Off      Off

      0FA0h     Off      On      Off      Off     Off      Off      Off

      0FC0h      On      Off     Off      Off     Off      Off      Off

      0FE0h     Off      Off     Off      Off     Off      Off      Off

       Note: A total of 128 base address settings are available. The
       switches are a binary representation of the decimal memory
       addresses. S3/7 is the Most Significant Bit and switch S3/1 is the
       Least Significant Bit. The switches have the following decimal
       values: S3/7=2048, S3/6=1024, S3/5=512, S3/4=256, S3/3=128,
       S3/2=64, S3/1=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)

  FACTORY CONFIGURED - DO NOT ALTER

      Switch            Position

       S2/7                Off