Measurement PCI-COM422485 User Manual

PC104-DO48H

User's Guide

Revision 3

September, 2000

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Table of Contents

1.0 INTRODUCTION ...................................

2.0 SOFTWARE INSTALLATION ........................

3.0 HARDWARE SETUP ................................

4.0 HARDWARE INSTALLATION .......................

5.0 CONTROL & DATA REGISTERS .....................

6.0 SPECIFICATIONS ..................................

1
2
2

23.1 BASE ADDRESS ..................................

5

54.1 CABLING TO THE DO48 CONNECTOR ...............

54.2 SIGNAL CONNECTION ............................

54.3 CONNECTOR DIAGRAM ..........................

7
8

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1.0 INTRODUCTION

The PC104-DO48H is a digital output board.

The ‘H’ designation indicates that these boards are capable of ‘High Drive’. High
Drive TTL is capable of higher currents than standard TTL. A High Drive output is
capable of supplying 15 mA and sinking 64 mA.

There is no control register to set the port direction from input to output. The
PC104-DO48H boards are output only.

The PC104-DO48H conforms to the 50-pin connector pin specification of all
CIO-DIO family of digital boards, so can be used in place of one another without
changing cabling or connectors.

The board is supported by Universal Library programming library.

1