National Instruments SCXI-1161 user manual - page 5

Table of Contents
SCXI-1161 User Manual vi
© National Instruments Corporation
Chapter 3
Signal Connections
Screw Terminal Connections....................................................................................... 3-1
Contact Protection for Inductive Load Connections.................................................... 3-1
Signal Connection..........................................................................................3-4
Rear Signal Connector..................................................................................................3-4
Rear Signal Connector Signal Descriptions................................................................. 3-6
Digital I/O Signal Connections......................................................................3-7
Chapter 4
Theory of Operation
Functional Overview....................................................................................................4-1
Digital Interface............................................................................................................4-3
Digital Control Circuitry..............................................................................................4-4
Relay Channels.............................................................................................................4-5
Appendix A
Specifications
Appendix B
Contact Protection
Appendix C
Customer Communication
Glossary
Index
Figures
Figure 1-1. The Relationship between the Programming Environment,
NI-DAQ,and Your Hardware ...............................................................1-4
Figure 2-1. SCXI-1161 General Parts Locator Diagram......................................... 2-2
Figure 3-1. Contact Protection Using a Flyback Diode for DC Inductive Loads... 3-2
Figure 3-2. Arc Suppressor Pad Locations.............................................................. 3-3