
DECISION COMPUTER INTERNATIONAL CO., LTD.

ADVANCE A/D-D/A DIGITAL I/O CARD

Card Type        Data acquisition
Chipset          Signal Processing Technologies HADC674Z
I/O Options      Analog/digital I/O
Data Bus         8-bit ISA

[Image]

                                CONNECTIONS

         Function            Label            Function             Label

  Analog/digital I/O (see      J1      Analog-to-digital            VR3
  pinout below)                        negative bipolar offset
                                       voltage

  Analog/digital I/O (see      J2      Analog-to-digital            VR4
  pinout below)                        positive bipolar offset
                                       voltage

  Unidentified                 T1      Analog-to-digital            VR5
                                       unipolar offset voltage

  Unidentified                 U3      Buffer gain voltage          VR6

  Unidentified                 U4      U3 offset voltage            VR7

  Unidentified                 U5      U4 offset voltage            VR8

  Digital-to-analog           VR1      U5 offset voltage            VR9
  channel 1 voltage

  Digital-to-analog           VR2
  channel 2 voltage

                         J1 PINOUT (SINGLE-ENDED)

          Function             Pin             Function             Pin

  +12V DC power                 1      -12V DC power                 14

  Digital-to-analog channel     2      Digital-to-analog channel     15
  2 output                             1 output

  Ground                        3      Analog-to-digital channel     16
                                       15

  Analog-to-digital channel     4      Analog-to-digital channel     17
  14                                   13

  Analog-to-digital channel     5      Analog-to-digital channel     18
  12                                   11

  Analog-to-digital channel     6      Analog-to-digital channel     19
  10                                   9

  Analog-to-digital channel     7      Analog-to-digital channel     20
  8                                    7

  Analog-to-digital channel     8      Analog-to-digital channel     21
  6                                    5

  Analog-to-digital channel     9      Analog-to-digital channel     22
  4                                    3

  Analog-to-digital channel     10     Analog-to-digital channel     23
  2                                    1

  Analog-to-digital channel     11     Ground                        24
  0

  Ground                        12     -5V DC power                  25

  +5V DC power                  13

                         J1 PINOUT (DIFFERENTIAL)

          Function             Pin             Function             Pin

  +12V DC power                 1      -12V DC power                 14

  Digital-to-analog channel     2      Digital-to-analog channel     15
  2 output                             1 output

  Ground                        3      Analog-to-digital             16
                                       negative channel 7

  Analog-to-digital             4      Analog-to-digital             17
  positive channel 7                   negative channel 6

  Analog-to-digital             5      Analog-to-digital             18
  positive channel 6                   negative channel 5

  Analog-to-digital             6      Analog-to-digital             19
  positive channel 5                   negative channel 4

  Analog-to-digital             7      Analog-to-digital             20
  positive channel 4                   negative channel 3

  Analog-to-digital             8      Analog-to-digital             21
  positive channel 3                   negative channel 2

  Analog-to-digital             9      Analog-to-digital             22
  positive channel 2                   negative channel 1

  Analog-to-digital             10     Analog-to-digital             23
  positive channel 1                   negative channel 0

  Analog-to-digital             11     Ground                        24
  positive channel 0

  Ground                        12     -5V DC power                  25

  +5V DC power                  13

                              J2 PINOUT

         Function            Pin           Function            Pin

  +12V DC power               1     Digital channel 2 bit 1    14

  Ground                      2     Digital channel 2 bit 2    15

  +12V DC power               3     Digital channel 2 bit 3    16

  Ground                      4     Digital channel 2 bit 4    17

  Digital channel 1 bit 0     5     Digital channel 2 bit 5    18

  Digital channel 1 bit 1     6     Digital channel 2 bit 6    19

  Digital channel 1 bit 2     7     Digital channel 2 bit 7    20

  Digital channel 1 bit 3     8     Chip Select 1              21

  Digital channel 1 bit 4     9     Chip Select 2              22

  Digital channel 1 bit 5    10     +5V DC power               23

  Digital channel 1 bit 6    11     Ground                     24

  Digital channel 1 bit 7    12     -12V DC power              25

  Digital channel 2 bit 0    13     Ground                     26

                      ANALOG-TO-DIGITAL VOLTAGE RANGE

      Setting              JP4               JP6               JP7

        0V to 10V       Pins 1 & 2        Pins 1 & 2        Pins 2 & 3
                          closed            closed            closed

        0V to 20V       Pins 1 & 2        Pins 2 & 3        Pins 2 & 3
                          closed            closed            closed

      -10V to 10V      Pins 1 & 2        Pins 1 & 2        Pins 1 & 2
                          closed            closed            closed

       -20V to 20V      Pins 1 & 2        Pins 2 & 3        Pins 1 & 2
                          closed            closed            closed

       Set by VR3 -     Pins 2 & 3           N/A               N/A
           VR5            closed

                    DIGITAL-TO-ANALOG CHANNEL 1 VOLTAGE

         Setting                    JP1                      JP4

           0V to 10V         Pins 3 & 4 closed        Pins 1 & 2 closed

         -10V to 10V        Pins 1 & 2 closed        Pins 1 & 2 closed

          Set by VR1                N/A               Pins 2 & 3 closed

                    DIGITAL-TO-ANALOG CHANNEL 2 VOLTAGE

         Setting                    JP2                      JP4

           0V to 10V         Pins 3 & 4 closed        Pins 1 & 2 closed

         -10V to 10V        Pins 1 & 2 closed        Pins 1 & 2 closed

          Set by VR2                N/A               Pins 2 & 3 closed

                      SINGLE-ENDED/DIFFERENTIAL MODE

       Setting              JP3               JP5               JP8

    Single-ended         Pins 1 & 2        Pins 1 & 2        Pins 2 & 3
                          closed            closed            closed

    Differential         Pins 2 & 3        Pins 2 & 3        Pins 3 & 4
                          closed            closed            closed

                             BASE I/O ADDRESS

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

    000h        On        On         On        On        On         On

    010h        On        On         On        On        On        Off

    020h        On        On         On        On        Off        On

    030h        On        On         On        On        Off       Off

    040h        On        On         On       Off        On         On

    3B0h        Off       Off       Off        On        Off       Off

    3C0h        Off       Off       Off       Off        On         On

    3D0h        Off       Off       Off       Off        On        Off

    3E0h        Off       Off       Off       Off        Off        On

    3F0h        Off       Off       Off       Off        Off       Off

            Note:A total of 64 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 SW1/6
            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. Turn off the switches and add the values
            of the switches that are off to obtain the correct address.
            (Off=1, On=0)

