Measurement Computing USB-2020 - Manual (Page 3)

Table of Contents
Preface
About this User's Guide ....................................................................................................................... 5
What you will learn from this user's guide ......................................................................................................... 5
Conventions in this user's guide ......................................................................................................................... 5
Where to find more information ......................................................................................................................... 5
Chapter 1
Introducing the USB-2020 .................................................................................................................... 6
Functional block diagram ................................................................................................................................... 6
Chapter 2
Installing the USB-2020 ........................................................................................................................ 7
What comes with your USB-2020 shipment? ..................................................................................................... 7
Hardware .......................................................................................................................................................................... 7
Software ............................................................................................................................................................................ 7
Documentation .................................................................................................................................................................. 7
Optional components ........................................................................................................................................................ 7
Unpacking........................................................................................................................................................... 7
Installing the software ........................................................................................................................................ 7
Installing the hardware ....................................................................................................................................... 8
Connecting the external power supply .............................................................................................................................. 8
Calibrating the hardware..................................................................................................................................... 9
Connecting the board for I/O operations ............................................................................................................ 9
Connectors, cables, and accessory products ...................................................................................................................... 9
Cabling ............................................................................................................................................................. 10
Field wiring, signal termination and conditioning ...........................................................................................................10
Chapter 3
Functional Details ............................................................................................................................... 11
Analog input acquisition modes ....................................................................................................................... 11
Software paced .................................................................................................................................................................11
Continuous scan (hardware paced) ..................................................................................................................................11
BURSTIO ........................................................................................................................................................................11
Connectors and LEDs ....................................................................................................................................... 12
BNC connectors ...............................................................................................................................................................12
Status LEDs .....................................................................................................................................................................12
USB connector .................................................................................................................................................................12
External power connector ................................................................................................................................................12
40-pin auxiliary connector (J9) ........................................................................................................................................13
Signal connections ............................................................................................................................................ 14
Analog input ....................................................................................................................................................................14
External clock I/O ............................................................................................................................................................15
Digital I/O ........................................................................................................................................................................15
Trigger input ....................................................................................................................................................................16
Mechanical drawing ......................................................................................................................................... 17
Chapter 4
Specifications ...................................................................................................................................... 18
Analog input ..................................................................................................................................................... 18
Accuracy ..........................................................................................................................................................................19
Noise performance ...........................................................................................................................................................19
Analog input calibration ................................................................................................................................... 19
Digital input/output........................................................................................................................................... 20
External trigger ................................................................................................................................................. 21
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