National Instruments SCXI-1121 - Manual (Page 4)

© 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