Introduction
The 12 bit data acquisition card is a high precision data conversion/acquisition system for PC/XT, PC/AT, PC/386, Pentium or compatibles.  It contains 16 analog to digital channels with unipolar or bipolar input and 4 digital I/O channels with 8 bit line for each channel. The on board 8254 chip provides programmable interval timer/counter functions to trig A/D conversion. The 12 bit data acquisition card also provides interrupt driven for convention A/D input.

The features of the 12 bit data acquisition adapter are:
Provides 16 A/D channels and the resolution is 12 bits.
Unipolar or bipolar selectable.
Input voltage range from 0 to 10V or 0 to 20V for unipolar, and from -5V to 5V or -10V to 10V for bipolar.
Provides 4 digital input/digital output channels and the resolution is 8 bits.
Provides three independent 16 bits counter to trig A/D conversion.
I/O port address selectable.
ISA bus interrupt programmable (IRQ3 to IRQ15).
Gain control factor selectable from 1 to 8.

Unpacking Information
12 bit data acquisition adapter.
User manual.
Software utilities.
Warranty form.

System requirements
Before installing your 12 bit data acquisition adapter, make sure that:
The host computer is an IBM PC/AT, PC/386, PC/486, and Pentium compatibles.


The five jumpers' blocks are correctly configured to coincide with the operating system you are using.

Hardware Installation
Your 12 bit data acquisition adapter is designed to be inserted in any available slot in your PC/AT, PC/386, PC/486, Pentium or compatibles. In order to gain access to the expansion slots, follow the steps listed below:


Turn off all power to your computer and all peripheral devices before installing your 12 bit data acquisition adapter.
Remove the cover of the computer.


Insert the pre-configured 12 bit data acquisition adapter into any available slot. Make sure the adapter is firmly seated in the chosen slot.
Replace the cover of the computer.

Note:
1.
You must adjust the A/D full scalar reference voltage by screwing the VR resistor.  (see R Full Scalar Adjustment).
2.
You must setup everything including the connection of the analog input into the DB25 channel input before turning on the PC power, otherwise it may damage the card

Hardware Configuration

Introduction
Configuration for Jumper
I/O Address Specification
VR Full Scalar Adjustment
Pin Assignments

I/O port Control

Input Programming
Output Programming
Programming Examples

APPENDIX
APPENDIX A


Catalog
Manual
Schematic
Converter
Drivice Driver
Test Tool & Sample Code
Measurement & Applications