
DIGI INTERNATIONAL, INC.

DIGICHANNEL PC/4

Card Type   Serial
Chip Set    Unidentified
I/O Options Serial ports (4)
Data Bus    8-bit ISA

[Image]

                                CONNECTIONS

          Function             Label           Function           Label

  Odd-interrupt daisy chain     P2       Serial ports via           P4
  connector                              DB-78 connector

  Even-interrupt daisy          P3
  chain connector

            Note:Standard DB-25 or RJ-45 serial ports are provided on an
            included adapter cable.

            See the daisy chain configuration table for more information
            about P2 and P3.

                        USER CONFIGURABLE SETTINGS

                   Setting                      Label        Position

     Port 1 uses interrupt table 1 (odd          J1         Pins 1 & 2
      interrupts)                                             closed

      Port 1 uses interrupt table 2 (even         J1         Pins 2 & 3
      interrupts)                                             closed

     Port 2 uses interrupt table 1               J2         Pins 1 & 2
                                                              closed

      Port 2 uses interrupt table 2               J2         Pins 2 & 3
                                                              closed

     Port 3 uses interrupt table 1               J3         Pins 1 & 2
                                                              closed

      Port 3 uses interrupt table 2               J3         Pins 2 & 3
                                                              closed

     Port 4 uses interrupt table 1               J4         Pins 1 & 2
                                                              closed

      Port 4 uses interrupt table 2               J4         Pins 2 & 3
                                                              closed

     Factory configured - do not alter         SW1/8           On

     Factory configured - do not alter         SW1/9           On

     Port 1 enabled                            SW2/8           On

      Port 1 disabled                           SW2/8           Off

     Port 2 enabled                            SW3/8           On

      Port 2 disabled                           SW3/8           Off

     Port 3 enabled                            SW4/8           On

      Port 3 disabled                           SW4/8           Off

     Port 4 enabled                            SW5/8           On

      Port 4 disabled                           SW5/8           Off

                         BOARD NUMBER

       Setting                J9                  J10

          0            Pins 2 & 3 closed   Pins 2 & 3 closed

          1            Pins 2 & 3 closed   Pins 1 & 2 closed

          2            Pins 1 & 2 closed   Pins 2 & 3 closed

          3            Pins 1 & 2 closed   Pins 1 & 2 closed

                          STATUS REGISTER ADDRESS

  Setting    SW1/1  SW1/2   SW1/3   SW1/4   SW1/5   SW1/6   SW1/7   SW1/10

   000h       On     On      On      On      On      On      On      On

   008h       On     On      On      On      On      On     Off      On

   010h       On     On      On      On      On     Off      On      On

   018h       On     On      On      On      On     Off     Off      On

   020h       On     On      On      On      Off     On      On      On

   3D8h      Off     Off     Off     Off     On     Off     Off      On

   3E0h      Off     Off     Off     Off     Off     On      On      On

   3E8h      Off     Off     Off     Off     Off     On     Off      On

   3F0h      Off     Off     Off     Off     Off    Off      On      On

   3F8h      Off     Off     Off     Off     Off    Off     Off      On

  Disabled   Off     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. SW1/1 is the Most Significant Bit and switch SW1/7
            is the Least Significant Bit. The switches have the following
            decimal values: SW1/1=512, SW1/2=256, SW1/3=128, SW1/4=64,
            SW1/5=32, SW1/6=16, SW1/7=8. Turn off the switches and add the
            values of the switches that are off to obtain the correct
            memory address. (Off=1, On=0) SW1/10 must always be on.

                              PORT ADDRESSES

  Setting    SW2/1    SW2/2    SW2/3    SW2/4    SW2/5    SW2/6    SW2/7

   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:The function of switches SW3-SW5 are identical to the
            function of SW2. The function of SW2 is to configure port 1.
            The functions of switches SW3 through SW5 are to configure
            ports 2 through 4 respectively.

            A total of 128 base address settings are available. The
            switches are a binary representation of the decimal memory
            addresses. SWx/1 is the Most Significant Bit and switch SWx/7
            is the Least Significant Bit. The switches have the following
            decimal values: SWx/1=512, SWx/2=256, SWx/3=128, SWx/4=64,
            SWx/5=32, SWx/6=16, SWx/7=8. Turn off the switches and add
            the values of the switches that are off to obtain the correct
            memory address. (Off=1, On=0)

                            INTERRUPT (TABLE 1)

  Setting       J85        J86        J87        J88      J89       J90

    IRQ3      Closed       Open       Open      Open      Open     Open

    IRQ5       Open       Closed      Open      Open      Open     Open

    IRQ7       Open        Open      Closed     Open      Open     Open

  Disabled     Open        Open       Open      Open      Open     Open

                            INTERRUPT (TABLE 2)

  Setting      J85      J86      J87        J88        J89         J90

    IRQ2      Open      Open     Open      Open        Open      Closed

    IRQ4      Open      Open     Open      Open       Closed      Open

    IRQ6      Open      Open     Open     Closed       Open       Open

  Disabled    Open      Open     Open      Open        Open       Open

                         DAISY CHAIN CONFIGURATION

         Setting                    P2                       P3

     No daisy chain          Pins 2 & 3 closed       Pins 2 & 3 closed

   Board is set to odd       Connected to P2 on      Pins 2 & 3 closed
        interrupt               next board

   Board is set to even      Pins 2 & 3 closed       Connected to P3 on
        interrupt                                        next board

            Note:When using the daisy-chain connectors, the board may
            only use one interrupt. Up to four boards may be
            daisy-chained. Daisy-chaining boards to operate as one unit
            will only function under MS-DOS and compatible operating
            systems.

