National Instruments Data Acquisition Device NI USB-621x - Manual (Page 5)

© National Instruments Corporation v NI USB-621x User Manual
Contents
About This Manual
Conventions ...................................................................................................................xiii
Related Documentation..................................................................................................xiv
Chapter 1
Getting Started
Installing NI-DAQmx ....................................................................................................1-1
Installing Other Software...............................................................................................1-1
Installing the Hardware..................................................................................................1-1
Device Pinouts ...............................................................................................................1-1
Device Specifications ....................................................................................................1-2
Applying Signal Labels to the USB-621x......................................................................1-2
USB Cable Strain Relief ................................................................................................1-3
Mounting the USB-621x ................................................................................................1-4
Desktop Use.....................................................................................................1-4
DIN Rail Mounting..........................................................................................1-4
Panel Mounting ...............................................................................................1-5
Chapter 2
DAQ System Overview
DAQ Hardware ..............................................................................................................2-1
DAQ-STC2......................................................................................................2-2
Calibration Circuitry........................................................................................2-2
Signal Conditioning .......................................................................................................2-3
Sensors and Transducers .................................................................................2-3
Cables and Accessories..................................................................................................2-4
USB-621x Mass Termination Custom Cabling...............................................2-4
Programming Devices in Software ................................................................................2-5
Chapter 3
Connector and LED Information
I/O Connector Signal Descriptions ................................................................................3-1
+5 V Power ....................................................................................................................3-3
+5 V Power as an Output ................................................................................3-3
+5 V Power as an Input ...................................................................................3-3
USB Device Fuse Replacement .....................................................................................3-3
PWR/ACT LED Indicator .............................................................................................3-5