
DIGI INTERNATIONAL, INC.

PC/4

Card Type               Serial card
Chip Set                Unidentified
Maximum Onboard Memory  Unidentified
I/O Options             Serial ports (4 RS-232),
Hard Drives supported   None
Floppy drives supported None
Data Bus                8-bit ISA
Card Size               Full-length

[Image]

                                CONNECTIONS

         Function             Label            Function            Label

  78-pin cable connector       CN1     Daisy chain cable            P2
                                       connector

  Daisy chain cable            P1
  connector

  Note: Pins 2 & 3 of connectors P1 & P2 are closed when in single board
  configuration.

                        USER CONFIGURABLE SETTINGS

                  Function                      Label         Position

     Factory configured - do not alter         DS1/8            On

     Factory configured - do not alter         DS1/9            On

      Interrupt status register enabled         DS1/10           On

      Interrupt status register disabled        DS1/10          Off

                          PORT ENABLING SELECTION

                      Port                         Label      Position

                 Port 1 enabled                    DS2/8         On

                 Port 1 disabled                   DS2/8        Off

                 Port 2 enabled                    DS3/8         On

                 Port 2 disabled                   DS3/8        Off

                 Port 3 enabled                    DS4/8         On

                 Port 3 disabled                   DS4/8        Off

                 Port 4 enabled                    DS5/8         On

                 Port 4 disabled                   DS5/8        Off

                      BOARD INDENTIFICATION SELECTION

            ID                        J9                     J10

           Board 0           Pins 2 & 3 closed       Pins 2 & 3 closed

            Board 1           Pins 2 & 3 closed       Pins 1 & 2 closed

            Board 2           Pins 1 & 2 closed       Pins 2 & 3 closed

            Board 3           Pins 1 & 2 closed       Pins 1 & 2 closed

  Note: The primary board in the daisy chain must remain on the default
  setting.

           INTTERRUPT STATUS REGISTER BASE I/O ADDRESS SELECTION

  Setting    DS1/1    DS1/2    DS1/3    DS1/4    DS1/5    DS1/6    DS1/7

   000h       On       On       On       On       On       On        On

   008h       On       On       On       On       On       On       Off

   010h       On       On       On       On       On       Off       On

   018h       On       On       On       On       On       Off      Off

   020h       On       On       On       On       Off      On        On

   3D8h       Off      Off      Off      Off      On       Off      Off

   3E0h       Off      Off      Off      Off      Off      On        On

   3E8h       Off      Off      Off      Off      Off      On       Off

   3F0h       Off      Off      Off      Off      Off      Off       On

   3F8h       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. DS1/1 is
  the Most Significant Bit and switch DS1/7 is the Least Significant Bit.
  The switches have the following decimal values:DS1/1=512, DS1/2=256,
  DS1/3=128, DS1/4=64, DS1/5=32, DS1/6=16, DS1/7=8. Turn off the switches
  and add the values of the switches to obtain the correct memory
  address. (Off=1, On=0)

                     PORT 1 BASE I/O ADDRESS SELECTION

  Setting    DS2/1    DS2/2    DS2/3    DS2/4    DS2/5    DS2/6    DS2/7

   000h       On       On       On       On       On       On        On

   008h       On       On       On       On       On       On       Off

   010h       On       On       On       On       On       Off       On

   018h       On       On       On       On       On       Off      Off

   020h       On       On       On       On       Off      On        On

   3D8h       Off      Off      Off      Off      On       Off      Off

   3E0h       Off      Off      Off      Off      Off      On        On

   3E8h       Off      Off      Off      Off      Off      On       Off

   3F0h       Off      Off      Off      Off      Off      Off       On

   3F8h       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. DS2/1 is
  the Most Significant Bit and switch DS2/7 is the Least Significant Bit.
  The switches have the following decimal values:DS2/1=512, DS2/2=256,
  DS2/3=128, DS2/4=64, DS2/5=32, DS2/6=16, DS2/7=8. Turn off the switches
  and add the values of the switches to obtain the correct memory
  address. (Off=1, On=0)

                     PORT 2 BASE I/O ADDRESS SELECTION

  Setting    DS3/1    DS3/2    DS3/3    DS3/4    DS3/5    DS3/6    DS3/7

   000h       On       On       On       On       On       On        On

   008h       On       On       On       On       On       On       Off

   010h       On       On       On       On       On       Off       On

   018h       On       On       On       On       On       Off      Off

   020h       On       On       On       On       Off      On        On

   3D8h       Off      Off      Off      Off      On       Off      Off

   3E0h       Off      Off      Off      Off      Off      On        On

   3E8h       Off      Off      Off      Off      Off      On       Off

   3F0h       Off      Off      Off      Off      Off      Off       On

   3F8h       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. DS3/1 is
  the Most Significant Bit and switch DS3/7 is the Least Significant Bit.
  The switches have the following decimal values:DS3/1=512, DS3/2=256,
  DS3/3=128, DS3/4=64, DS3/5=32, DS3/6=16, DS3/7=8. Turn off the switches
  and add the values of the switches to obtain the correct memory
  address. (Off=1, On=0)

                     PORT 3 BASE I/O ADDRESS SELECTION

  Setting    DS4/1    DS4/2    DS4/3    DS4/4    DS4/5    DS4/6    DS4/7

   000h       On       On       On       On       On       On        On

   008h       On       On       On       On       On       On       Off

   010h       On       On       On       On       On       Off       On

   018h       On       On       On       On       On       Off      Off

   020h       On       On       On       On       Off      On        On

   3D8h       Off      Off      Off      Off      On       Off      Off

   3E0h       Off      Off      Off      Off      Off      On        On

   3E8h       Off      Off      Off      Off      Off      On       Off

   3F0h       Off      Off      Off      Off      Off      Off       On

   3F8h       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. DS4/1 is
  the Most Significant Bit and switch DS4/7 is the Least Significant Bit.
  The switches have the following decimal values:DS4/1=512, DS4/2=256,
  DS4/3=128, DS4/4=64, DS4/5=32, DS4/6=16, DS4/7=8. Turn off the switches
  and add the values of the switches to obtain the correct memory
  address. (Off=1, On=0)

                     PORT 4 BASE I/O ADDRESS SELECTION

  Setting    DS5/1    DS5/2    DS5/3    DS5/4    DS5/5    DS5/6    DS5/7

   000h       On       On       On       On       On       On        On

   008h       On       On       On       On       On       On       Off

   010h       On       On       On       On       On       Off       On

   018h       On       On       On       On       On       Off      Off

   020h       On       On       On       On       Off      On        On

   3D8h       Off      Off      Off      Off      On       Off      Off

   3E0h       Off      Off      Off      Off      Off      On        On

   3E8h       Off      Off      Off      Off      Off      On       Off

   3F0h       Off      Off      Off      Off      Off      Off       On

   3F8h       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. DS5/1 is
  the Most Significant Bit and switch DS5/7 is the Least Significant Bit.
  The switches have the following decimal values:DS5/1=512, DS5/2=256,
  DS5/3=128, DS5/4=64, DS5/5=32, DS5/6=16, DS5/7=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       J85        J86       J87        J88       J89        J90

   IRQ2       Open       Open      Open       Open      Open      Closed

   IRQ3      Closed      Open      Open       Open      Open       Open

   IRQ4       Open       Open      Open       Open     Closed      Open

   IRQ5       Open      Closed     Open       Open      Open       Open

   IRQ6       Open       Open      Open      Closed     Open       Open

   IRQ7       Open       Open     Closed      Open      Open       Open

  Note: Ports 1-4 must be set to accept either an odd or even interrupt.
  J1-J4 corresponds to ports 1-4. Place jumper on pins 1 & 2 for an odd
  interrupt or pins 2 & 3 for an even interrupt.

