3
Table of Contents
Preface
About this User's Guide ....................................................................................................................... 4
What you will learn from this user's guide ......................................................................................................... 4
Conventions in this user's guide ......................................................................................................................... 4
Where to find more information ......................................................................................................................... 4
Chapter 1
Introducing the USB-DIO24H/37 .......................................................................................................... 5
Overview: USB-DIO24H/37 features ................................................................................................................. 5
Functional block diagram ................................................................................................................................... 5
Chapter 2
Installing the USB-DIO24H/37 .............................................................................................................. 6
Unpacking........................................................................................................................................................... 6
Installing the software ........................................................................................................................................ 6
Installing the hardware ....................................................................................................................................... 6
Connecting the board for I/O operations ............................................................................................................ 6
Connectors and cables....................................................................................................................................................... 6
Field wiring, signal termination and conditioning ............................................................................................................ 7
Chapter 3
Functional Details ................................................................................................................................. 8
Components ........................................................................................................................................................ 8
37-pin I/O connector ......................................................................................................................................................... 8
USB connector .................................................................................................................................................................. 9
LED .................................................................................................................................................................................. 9
Pull-up resistors ................................................................................................................................................................ 9
Power consumption ............................................................................................................................................ 9
Output (source) current limits ..........................................................................................................................................10
Output (sink) current limits ..............................................................................................................................................10
Mechanical Drawings ....................................................................................................................................... 10
Chapter 4
Specifications ...................................................................................................................................... 11
Digital input/output........................................................................................................................................... 11
Counter ............................................................................................................................................................. 12
Data transfer rates ............................................................................................................................................. 12
Power ................................................................................................................................................................ 12
General ............................................................................................................................................................. 13
Environmental .................................................................................................................................................. 13
Mechanical ....................................................................................................................................................... 13
Main connector and pinout ............................................................................................................................... 13
Declaration of Conformity .................................................................................................................. 15