Introduction
The 12 bit A/D-D/A card is a high precision data conversion system for PC/486, Pentium, or compatibles. It contains one 12 bits digital to analog channel (setting jumper 2 for selecting unipolar or bipolar) and sixteen 12 bits analog to digital channels (setting jumper 3 for selecting unipolar or bipolar).

The features of the 12 bit A/D-D/A board are:
D/A:
Support one 12 bits channel. 
Output voltage. (adjust by VR)
unipolar: 0V to 9V.
bipolar:  -9V to 9V.  
Unipolar or bipolar selectable, 
Current setting time 500nsec. 
Nonlinearity 0.2%.

A/D:
Support sixteen 12 bits channels. 
Input voltage. (adjust by VR)
unipolar: 0V to 9V.
bipolar:  -9V to 9V. 
Unipolar or bipolar selectable. 
Successive approximation method. 
Conversion time 60usec. (each channel) 
I/O port address: &H278-27F or &H2F8-2FF selectable.

Unpacking Information
Check that your 12 bit A/D-D/A package includes the following items:
12 bit A/D-D/A board.
Demo Program.
Data Capture Software Manual with Disk.
User manual.
Warranty form.


HARDWARE INSTALLATION
Your 12 bit A/D-D/A card is designed to be inserted in any available slot in your 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 industry card.
Remove the cover of the computer.
Insert the 12 BIT AD/DA CARD into any available slot. Make sure the adapter is firmly seated in the chosen slot.
Replace the cover of the computer.
Connects the expansion cable to 25 pin connectors.
Turn on the power of your computer.

HARDWARE CONFIGURATION
Before you use the A/D-D/A card, you must ensure that the port address and jumper are set correctly, the proper settings for the A/D-D/A card are described in the following:

I/O Port Address
Jumper Settong
D Type Connector Pin Assignment

SOFTWARE DIAGNOSTIC
Diagnostic Test
Programming Techniques Under MS/DOS
BASIC Test Program

APPENDIX
APPENDIX A


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