National Instruments SCXI-1121 user manual Contents

© National Instruments Corporation v SCXI-1121 User Manual
Contents
About This Manual
Conventions...................................................................................................................xi
Related Documentation..................................................................................................xii
Chapter 1
Introduction
What Your Kit Should Contain.....................................................................................1-2
Optional Software..........................................................................................................1-2
Optional Equipment.......................................................................................................1-4
Custom Cables.................................................................................................1-5
Unpacking......................................................................................................................1-6
Chapter 2
Configuration and Installation
Module Configuration....................................................................................................2-1
Digital Signal Connections..............................................................................2-3
Jumper W44......................................................................................2-3
Jumper W38......................................................................................2-4
Jumper W32......................................................................................2-4
Using Jumpers W32 and W38..........................................................2-4
Analog Configuration......................................................................................2-6
Grounding, Shielding, and Reference Mode Selection.....................2-6
Input Channel Jumpers......................................................................2-8
Excitation Jumpers............................................................................2-9
Hardware Installation.....................................................................................................2-14
Signal Connections........................................................................................................2-15
Front Connector...............................................................................................2-16
Front Connector Signal Descriptions..............................................................2-18
Analog Input Channels......................................................................2-20
Excitation Channels..........................................................................2-22
Temperature Sensor Connection.......................................................2-22
Connector-and-Shell Assembly........................................................2-22
SCXI-1320, SCXI-1328, and SCXI-1321 Terminal Blocks.............2-24
Rear Signal Connector.....................................................................................2-37
Rear Signal Connector Signal Descriptions ...................................................2-38
Analog Output Signal Connections...................................................2-39
Digital I/O Signal Connections.........................................................2-40
Timing Requirements and Communication Protocol........................2-42
Communication Signals....................................................................2-42