
COMPUTER MODULES, INC.

BLASTRONIX 232/422/485

Card Type   Serial
Chipset     16C552
I/O Options Serial ports (2)
Data Bus    16-bit ISA
Card Size   Full height, half length

[Image]

                                CONNECTIONS

        Function             Label            Function            Label

  RS-232, RS-422, or          CN1      RS-232, RS-422, or          CN2
  RS-485 serial port 1                 RS-485 serial port 2

                        USER CONFIGURABLE SETTINGS

                  Setting                     Label         Position

      Serial line is not terminated            RN1        Not installed

      Serial line is terminated                RN1          Installed

     Serial port 1 enabled                   SW1/1            On

      Serial port 1 disabled                  SW1/1            Off

     Serial port 2 enabled                   SW2/1            On

      Serial port 2 disabled                  SW2/1            Off

     Status register enabled                 SW3/1            On

      Status register disabled                SW3/1            Off

                      SERIAL PORT INTERRUPT SELECTION

  Setting     J2/A       J2/B      J2/C       J2/D      J2/E       J2/F

    2/9       Open       Open      Open       Open      Open      Closed

     3       Closed      Open      Open       Open      Open       Open

     4        Open      Closed     Open       Open      Open       Open

     5        Open       Open     Closed      Open      Open       Open

     6        Open       Open      Open      Closed     Open       Open

     7        Open       Open      Open       Open     Closed      Open

    10        Open       Open      Open       Open      Open       Open

    11        Open       Open      Open       Open      Open       Open

    12        Open       Open      Open       Open      Open       Open

    14        Open       Open      Open       Open      Open       Open

    15        Open       Open      Open       Open      Open       Open

                  SERIAL PORT INTERRUPT SELECTION (CON'T)

   Setting       J2/G        J2/H         J2/I        J2/J        J2/K

     2/9         Open        Open         Open        Open        Open

      3          Open        Open         Open        Open        Open

      4          Open        Open         Open        Open        Open

      5          Open        Open         Open        Open        Open

      6          Open        Open         Open        Open        Open

      7          Open        Open         Open        Open        Open

     10         Closed       Open         Open        Open        Open

     11          Open       Closed        Open        Open        Open

     12          Open        Open        Closed       Open        Open

     14          Open        Open         Open       Closed       Open

     15          Open        Open         Open        Open       Closed

            Note:The settings for jumper J3 are identical to those for
            J2. J2 sets the interrupt for port 1, and J3 sets the
            interrupt for port 2.

                        SHARED INTERRUPT SELECTION

  Setting     J1/A       J1/B      J1/C       J1/D      J1/E       J1/F

    2/9       Open       Open      Open       Open      Open      Closed

     3       Closed      Open      Open       Open      Open       Open

     4        Open      Closed     Open       Open      Open       Open

     5        Open       Open     Closed      Open      Open       Open

     6        Open       Open      Open      Closed     Open       Open

     7        Open       Open      Open       Open     Closed      Open

    10        Open       Open      Open       Open      Open       Open

    11        Open       Open      Open       Open      Open       Open

    12        Open       Open      Open       Open      Open       Open

    14        Open       Open      Open       Open      Open       Open

    15        Open       Open      Open       Open      Open       Open

                    SHARED INTERRUPT SELECTION (CON'T)

   Setting       J1/G        J1/H         J1/I        J1/J        J1/K

     2/9         Open        Open         Open        Open        Open

      3          Open        Open         Open        Open        Open

      4          Open        Open         Open        Open        Open

      5          Open        Open         Open        Open        Open

      6          Open        Open         Open        Open        Open

      7          Open        Open         Open        Open        Open

     10         Closed       Open         Open        Open        Open

     11          Open       Closed        Open        Open        Open

     12          Open        Open        Closed       Open        Open

     14          Open        Open         Open       Closed       Open

     15          Open        Open         Open        Open       Closed

            Note:To use interrupt sharing, both ports should be set to
            the same interrupt as is set with this table.

                     STATUS REGISTER ADDRESS SELECTION

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

      000h     Off      Off     Off      Off      Off      Off      Off

      008h     On       Off     Off      Off      Off      Off      Off

      010h     Off      On      Off      Off      Off      Off      Off

      018h     On       On      Off      Off      Off      Off      Off

      020h     Off      Off      On      Off      Off      Off      Off

     300h     Off      Off     Off      Off      Off       On       On

      3D8h     On       On      Off       On       On       On       On

      3E0h     Off      Off      On       On       On       On       On

      3E8h     On       Off      On       On       On       On       On

      3F0h     Off      On       On       On       On       On       On

      3F8h     On       On       On       On       On       On       On

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

                      SERIAL PORT 1 ADDRESS SELECTION

    Setting       SW2/2   SW2/3   SW2/4    SW2/5   SW2/6   SW2/7    SW2/8

        000h      Off     Off      Off     Off      Off     Off     Off

        008h       On     Off      Off     Off      Off     Off     Off

        010h      Off      On      Off     Off      Off     Off     Off

        018h       On      On      Off     Off      Off     Off     Off

        020h      Off     Off      On      Off      Off     Off     Off

        2E8h       On     Off      On       On      On      Off      On
      (COM4:)

        2F8h       On      On      On       On      On      Off      On
      (COM2:)

        3D8h       On      On      Off      On      On      On       On

        3E0h      Off     Off      On       On      On      On       On

        3E8h       On     Off      On       On      On      On       On
      (COM3:)

        3F0h      Off      On      On       On      On      On       On

       3F8h       On      On      On       On      On      On       On
      (COM1:)

            Note: A total of 128 base address settings are available. The
            switches are a binary representation of the decimal memory
            addresses. SW2/8 is the Most Significant Bit and switch SW2/2
            is the Least Significant Bit. The switches have the following
            decimal values: SW2/8=512, SW2/7=256, SW2/6=128, SW2/5=64,
            SW2/4=32, SW2/3=16, SW2/2=8. Turn on the switches and add the
            values of the switches that are on to obtain the correct
            memory address. (Off=0, On=1)

                      SERIAL PORT 2 ADDRESS SELECTION

    Setting       SW3/2   SW3/3   SW3/4    SW3/5   SW3/6   SW3/7    SW3/8

        000h      Off     Off      Off     Off      Off     Off     Off

        008h       On     Off      Off     Off      Off     Off     Off

        010h      Off      On      Off     Off      Off     Off     Off

        018h       On      On      Off     Off      Off     Off     Off

        020h      Off     Off      On      Off      Off     Off     Off

        2E8h       On     Off      On       On      On      Off      On
      (COM4:)

       2F8h       On      On      On       On      On      Off      On
      (COM2:)

        3D8h       On      On      Off      On      On      On       On

        3E0h      Off     Off      On       On      On      On       On

        3E8h       On     Off      On       On      On      On       On
      (COM3:)

        3F0h      Off      On      On       On      On      On       On

        3F8h       On      On      On       On      On      On       On
      (COM1:)

            Note: A total of 128 base address settings are available. The
            switches are a binary representation of the decimal memory
            addresses. SW3/8 is the Most Significant Bit and switch SW3/2
            is the Least Significant Bit. The switches have the following
            decimal values: SW3/8=512, SW3/7=256, SW3/6=128, SW3/5=64,
            SW3/4=32, SW3/3=16, SW3/2=8. Turn on the switches and add the
            values of the switches that are on to obtain the correct
            memory address. (Off=0, On=1)

                       SERIAL PORT 1 TYPE SELECTION

  Setting   JP4/G   JP4/H    SW4/1   SW4/2   SW4/3   SW4/4   SW4/5   SW4/6

  RS-232    Open     Open     On      On      On      On      On      On

  RS-422    Open     Open     Off     Off     Off    Off     Off     Off

  RS-485    Closed  Closed    Off     Off     Off    Off     Off     Off

                        SERIAL PORT 1 TYPE SELECTION (CON'T)

  Setting   SW4/7  SW4/8   SW4/9   SW4/10   SW4/11   SW4/12   SW5/1   SW5/2   SW5/3

  RS-232     On     On      On       On       On      On       On      On      On

  RS-422    Off     Off     Off     Off      Off      Off     Off     Off     Off

  RS-485    Off     Off     Off     Off      Off      Off     Off     Off     Off

                        SERIAL PORT 1 TYPE SELECTION (CON'T)

  Setting   SW5/4  SW5/5   SW5/6   SW5/7   SW5/8   SW5/9   SW5/10   SW5/11   SW5/12

  RS-232     On     On      On      On      On      On      On       On       On

  RS-422    Off     Off     Off     Off     Off    Off      Off      Off      Off

  RS-485    Off     Off     Off     Off     Off    Off      Off      Off      Off

                       SERIAL PORT 2 TYPE SELECTION

  Setting   JP5/G   JP5/H    SW6/1   SW6/2   SW6/3   SW6/4   SW6/5   SW6/6

  RS-232    Open     Open     On      On      On      On      On      On

  RS-422    Open     Open     Off     Off     Off    Off     Off     Off

  RS-485    Closed  Closed    Off     Off     Off    Off     Off     Off

                        SERIAL PORT 2 TYPE SELECTION (CON'T)

  Setting   SW6/7  SW6/8   SW6/9   SW6/10   SW6/11   SW6/12   SW7/1   SW7/2   SW7/3

  RS-232     On     On      On       On       On      On       On      On      On

  RS-422    Off     Off     Off     Off      Off      Off     Off     Off     Off

  RS-485    Off     Off     Off     Off      Off      Off     Off     Off     Off

                        SERIAL PORT 2 TYPE SELECTION (CON'T)

  Setting   SW7/4  SW7/5   SW7/6   SW7/7   SW7/8   SW7/9   SW7/10   SW7/11   SW7/12

  RS-232     On     On      On      On      On      On      On       On       On

  RS-422    Off     Off     Off     Off     Off    Off      Off      Off      Off

  RS-485    Off     Off     Off     Off     Off    Off      Off      Off      Off

                        SERIAL PORT 1 CONFIGURATION

          Setting                                 J6

            DTE               Pins 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11
                                         & 12, 13 & 14 closed

            DCE               Pins 1 & 3, 2 & 4, 5 & 7, 6 & 8, 9 & 11, 10
                                             & 12 closed

                        SERIAL PORT 2 CONFIGURATION

          Setting                                 J7

            DTE               Pins 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11
                                         & 12, 13 & 14 closed

            DCE               Pins 1 & 3, 2 & 4, 5 & 7, 6 & 8, 9 & 11, 10
                                             & 12 closed

                         PORT 1 RS-422/485 DRIVER CONFIGURATION

     Setting        J4/A     J4/B     J4/C     J4/D    J4/E     J4/F     J4/I     J4/J

      Transmit    Closed   Closed    Open     Open    Open     Open     Open     Open
      and receive
        drivers
        always
       enabled

       Transmit     Open     Open    Closed   Closed   Open     Open     Open     Open
       enabled,
        receive
      disabled on
       high RTS

       Transmit     Open     Open     Open     Open    Closed   Closed   Open     Open
      and receive
        drivers
      controlled
      by software

       Transmit     Open     Open     Open     Open    Open     Open     Closed   Closed
       enabled,
        receive
       disabled
       when port
      attempts to
       transmit

            Note:The drivers may not be always enabled in RS-485 mode.

                         PORT 2 RS-422/485 DRIVER CONFIGURATION

     Setting        J5/A     J5/B     J5/C     J5/D    J5/E     J5/F     J5/I     J5/J

      Transmit    Closed   Closed    Open     Open    Open     Open     Open     Open
      and receive
        drivers
        always
       enabled

       Transmit     Open     Open    Closed   Closed   Open     Open     Open     Open
       enabled,
        receive
      disabled on
       high RTS

       Transmit     Open     Open     Open     Open    Closed   Closed   Open     Open
      and receive
        drivers
      controlled
      by software

       Transmit     Open     Open     Open     Open    Open     Open     Closed   Closed
       enabled,
        receive
       disabled
       when port
      attempts to
       transmit

            Note:The drivers may not be always enabled in RS-485 mode.

