MC Switch Sense 8/8 User Manual
Switch & Sense 8/8
USB-based
Isolated Input and Relay Output
User's Guide
Document Revision 4, June, 2006
© Copyright 2006, Measurement Computing Corporation™
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HM Switch & Sense 8_8.doc
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Table of Contents
About this User's Guide .......................................................................................................................v
What you will learn from this user's guide .........................................................................................................v
Conventions in this user's guide .........................................................................................................................v
Where to find more information.........................................................................................................................v
Chapter 1
Introducing the Switch & Sense 8/8 ................................................................................................ 1-1
Overview: Switch & Sense 8/8 features ......................................................................................................... 1-1
Switch & Sense 8/8 block diagram................................................................................................................. 1-2
Software features............................................................................................................................................ 1-2
Connecting a Switch & Sense 8/8 to your computer is easy .......................................................................... 1-3
Chapter 2
Installing the Switch & Sense 8/8 .................................................................................................... 2-1
What comes with your Switch & Sense 8/8 shipment? .................................................................................. 2-1
Hardware ....................................................................................................................................................................... 2-1
Additional Documentation............................................................................................................................................. 2-1
Unpacking the Switch & Sense 8/8 ................................................................................................................ 2-2
Installing the software .................................................................................................................................... 2-2
Connecting the external power supply............................................................................................................ 2-2
Installing the Switch & Sense 8/8................................................................................................................... 2-2
Chapter 3
Functional Details ............................................................................................................................. 3-1
External components ...................................................................................................................................... 3-1
Direct current (dc) power connector and +9 V power supply ........................................................................................ 3-1
External power LED ...................................................................................................................................................... 3-2
Status LED..................................................................................................................................................................... 3-2
USB connector............................................................................................................................................................... 3-2
Internal components ....................................................................................................................................... 3-2
Screw terminals and relays ............................................................................................................................................3-2
Main connector and pin out............................................................................................................................ 3-3
Relay contact terminals (NO, C, NC (0) to NO, C, NC (7)) ..........................................................................................3-3
Differential isolated digital input terminals (IP0A to IP7B) ..........................................................................................3-4
Chapter 4
Specifications.................................................................................................................................... 4-1
USB compliance............................................................................................................................................. 4-1
Power consumption ........................................................................................................................................ 4-1
Output specification........................................................................................................................................ 4-1
Isolated inputs................................................................................................................................................. 4-1
Environmental ................................................................................................................................................ 4-2
Mechanical ..................................................................................................................................................... 4-2
Screw terminal................................................................................................................................................ 4-2
Miscellaneous ................................................................................................................................................. 4-2
Screw terminal pinouts ................................................................................................................................... 4-2
iv
About this User’s Guide
What you will learn from this user's guide
This user's guide describes the Measurement Computing Switch & Sense 8/8 data acquisition device and
lists device specifications.
Conventions in this user's guide
For more information
Text presented in a box signifies additional information related to the subject matter.
Caution! Shaded caution statements present information to help you avoid injuring yourself and others,
damaging your hardware, or losing your data.
bold text Bold text is used for the names of objects on a screen, such as buttons, text boxes, and check boxes.
italic text Italic text is used for the names of manuals and help topic titles, an d t o emphasize a word or phrase.
Where to find more informati on
Additional information about Switch & Sense 8/8 hardware is available on our website at
www.mccdaq.com. You can also contact Measurement Computing Corporation with specific questions.
Preface
Knowledgebase: kb.mccdaq.com
Tech support form: www.mccdaq.com/support/support_form.aspx
Email: techsupport@mccdaq.com
Phone: 508-946-5100 and follow the instructions for reaching Tech Support
For international customers, co ntac t your local distributor. Refer to the International Distributors sectio n o n our
website at www.mccdaq.com/International.
v
Chapter 1
Introducing the Switch & Sense 8/8
Overview: Switch & Sense 8/8 features
This user's guide contains all of the information you need to install, configure, and program the Switch & Sense
8/8.
The Switch & Sense 8/8 is a USB 1.1 low-speed device used for data acquisition and control. It is designed for
USB 1.1 ports, and was tested for full compatibility with both USB 1.1 and USB 2.0 ports. The Switch & Sense
8/8 is supported under popular Microsoft
The Switch & Sense 8/8 offers eight single pole double throw (SPDT) Form C relays and eight isolated inputs.
You can configure each of the isolated inputs with an optional input filter. The input filters are enabled and
disabled by software control.
The Switch & Sense 8/8 is shown in Figure 1-1. All I/O connections are made to four sets of screw terminals.
®
Windows® operating systems.
1-1
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