
SYNAPSE COMMUNICATIONS

SDLC ADAPTER

Card Type   Digital I/O card
I/O Options Serial port
Data Bus    8-bit ISA
Card Size   Half-length

[Image]

              CONNECTIONS

      Function             Label

  RS-232 connector          CN1

                        USER CONFIGURABLE SETTINGS

                Function                    Label           Position

     Factory configured - do not alter      JP2       Pins 1 & 2 closed

                        BASE I/O ADDRESS SELECTION

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

   210h     Off      On      On      On      On     Off      On      On

   218h     Off      On      On      On      On     Off     Off      On

   220h     Off      On      On      On     Off      On      On      On

   228h     Off      On      On      On     Off      On     Off      On

   230h     Off      On      On      On     Off     Off      On      On

   3A8h     Off     Off     Off      On     Off      On     Off      On

   3C0h     Off     Off     Off     Off      On      On      On      On

   3C8h     Off     Off     Off     Off      On      On     Off      On

   3E0h     Off     Off     Off     Off     Off      On      On      On

   3E8h     Off     Off     Off     Off     Off      On     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=32768, SW1/7=16384,
  SW1/6=8192, SW1/5=4096, SW1/4=2048, SW1/3=1024, SW1/2=512, SW1/1=256.
  Turn off the switches and add the values of the switches to obtain the
  correct memory address. (Off=1, On=0)

                            INTERRUPT SELECTION

                  IRQ                                   JP1

                      2                        Pins 1 & 2 are closed

                     3                        Pins 3 & 4 are closed

                      4                        Pins 5 & 6 are closed

                      5                        Pins 7 & 8 are closed

                      7                       Pins 9 & 10 are closed

