National Instruments SCXI-1161

Chapter 3 Signal Connections

National Instruments Corporation 3-3 SCXI-1161 User Manual

Figure 3-2 shows how to connect a transient voltage suppressor for AC

and DC inductive loads.

Figure 3-2. Arc Suppressor Pad Locations

Table 3-2. Arc Suppressor Placement, COM to NC

COM to NC

Channel Number Transient Voltage Suppressor

Reference Designator

0 VR2

1 VR4

2 VR6

3 VR8

4VR10

5 VR12

6 VR14

7 VR16

COM

VR2

VR1

Relay

Arc Suppressor Pads

Contents

Main Page Important Information Warranty Copyright Trademarks WARNING REGARDING MEDICAL AND CLINICAL USE OF NATIONAL INSTRUMENTS PRODUCTS About This Manual Chapter 1 Introduction Chapter 2 Configuration and Installation Page Tables About This Manual Organization of This Manual Conventions Used in This Manual National Instruments Documentation Related Documentation Customer Communication Introduction About the SCXI-1161 What You Need to Get Started Software Programming Choices National Instruments Application Software NI-DAQ Driver Software Register-Level Programming Optional Equipment Custom Cables Unpacking Page Chapter 2 Configuration and Installation SCXI-1161 User Manual 2-2 Figure 2-1. SCXI-1161 General Parts Locator Diagram National Instruments Corporation Page Page Jumper Use Jumper Configuration Jumper W1 Jumper W2 Using Jumpers W1 and W2 Page Jumpers W3, W4, and W5 Hardware Installation Signal Connections Screw Terminal Connections Contact Protection for Inductive Load Connections Page Page Signal Connection Rear Signal Connector Chapter 3 Signal Connections National Instruments Corporation 3-5 SCXI-1161 User Manual Figure 3-3 shows the pin assignments for the SCXI-1161 rear signal connector. Figure 3-3. SCXI-1161 Rear Signal Connector Pin Assignment Rear Signal Connector Signal Descriptions Digital I/O Signal Connections Chapter 3 Signal Connections SCXI-1161 User Manual 3-8 National Instruments Corporation Table 3-4. SCXIbus to SCXI-1161 Rear Signal Connector to Data Acquisition Board Pin Equivalences Theory of Operation Functional Overview Chapter 4 Theory of Operation Figure 4-1. SCXI-1161 Block Diagram SCXI-1161 User Manual 4-2 National Instruments Corporation Digital Interface Digital Control Circuitry Relay Channels A Specifications Channel Rating Page B Contact Protection Page Page Page Page Page C Customer Communication NI Web Support Online Problem-Solving and Diagnostic Resources Software-Related Resources Worldwide Support Technical Support Form SCXI-1161 Hardware and Software Configuration Form National Instruments Products Other Products Documentation Comment Form Title: Edition Date: Part Number: Mail to: Technical Publications Fax to: Glossary Numbers/Symbols A Page Page R S U V W Index A B C D E H I J L M S T