Table Of Contents - Measurement Computing USB-1408FS User Manual

Table of Contents

Preface
About this User's Guide ....................................................................................................................... 7
What you will learn from this user's guide ......................................................................................................... 7
Conventions in this user's guide ......................................................................................................................... 7
Where to find more information ......................................................................................................................... 7
Chapter 1
Introducing the USB-1408FS................................................................................................................ 8
USB-1408FS block diagram ............................................................................................................................... 9
Software features ................................................................................................................................................ 9
Connecting a USB-1408FS to your computer is easy....................................................................................... 10
Chapter 2
Installing the USB-1408FS .................................................................................................................. 11
What comes with your USB-1408FS shipment? .............................................................................................. 11
Hardware .........................................................................................................................................................................11
Additional documentation ................................................................................................................................................11
Unpacking the USB-1408FS ............................................................................................................................ 12
Installing the software ...................................................................................................................................... 12
Installing the hardware ..................................................................................................................................... 12
Calibrating the USB-1408FS ............................................................................................................................ 13
Chapter 3
Functional Details ............................................................................................................................... 14
Theory of operation - analog input acquisition modes ..................................................................................... 14
Software paced mode .......................................................................................................................................................14
Continuous scan mode .....................................................................................................................................................14
External components ........................................................................................................................................ 14
USB connector .................................................................................................................................................................15
LED .................................................................................................................................................................................15
Screw terminal wiring ......................................................................................................................................................15
Main connector and pin out .............................................................................................................................................16
Analog input terminals (CH0 IN - CH7 IN).....................................................................................................................16
Analog output terminals (D/A OUT 0 and D/A OUT 1) ..................................................................................................19
Digital I/O terminals (Port A0 to A7, and Port B0 to B7) ................................................................................................19
Power terminals ...............................................................................................................................................................20
External trigger terminal ..................................................................................................................................................20
Counter terminal ..............................................................................................................................................................20
+2.5VREF terminal ..........................................................................................................................................................21
SYNC terminal ................................................................................................................................................................21
Ground terminals .............................................................................................................................................................21
Accuracy ........................................................................................................................................................... 21
USB-1408FS channel gain queue feature ......................................................................................................... 24
Synchronizing multiple units ............................................................................................................................ 24
Chapter 4
Specifications ...................................................................................................................................... 26
Analog input ..................................................................................................................................................... 26
Analog output ................................................................................................................................................... 28
Digital input/output........................................................................................................................................... 28
External trigger ................................................................................................................................................. 29
External clock input/output............................................................................................................................... 29
Counter section ................................................................................................................................................. 29
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