National Instruments 1191, 1192, SCXI-1190

Chapter2 Usingthe SCXI-119X

SCXI-1190/1191/1192User Manual 2-2 ni.com

Figure 2-1 illustrates the keyfunction alcomp onents of the

SCXI-1190/1191 multiplexer modules.

Figure2-1. SCXI-1190/1191Modules Block Diagram

3AcomA 2A 1A 0A 3BcomB 2B 1B 0B 3CcomC 2C 1C 0C 3DcomD 2D 1D 0D

RearSignal

Connector

SCXIbus

RelayController

and

Drivers

RelayControl Bus

Contents

Main Page Important Information Warranty Copyright Trademarks WARNINGREGARDING USE OF NATIONAL INSTRUMENTS PRODUCTS Compliance FCC/Canada Radio Frequency Interference Compliance* Determining FCC Class FCC/DOC Warnings Class A European Union - Compliance to EEC Directives Conventions Contents Page Installing and Configuring the SCXI-119X About the SCXI-119X Installing the Software Safety Instructions Installing the Hardware Unpacking Installing the SCXI-119XModule into an SCXI Chassis Page Connecting the SCXI-119Xto a DAQ Device or Computer-Based Instrument Page Connecting the SCXI-119Xto a DAQ Device in a PXI Combination Chassis Configuring and Self-Testing the SCXI-119X Auto-Detecting Modules Manually Adding Modules Self-TestVerification TroubleshootingSelf-Test Verification Page Removing the SCXI-119X Removing the SCXI-119Xfrom an SCXI Chassis Removing the SCXI-119Xfrom Measurement & Automation Explorer Using the SCXI-119X Functional Overview Page RF Switching Precautions Contact Protection Connecting Signals Multiplexing to RF Sources Figure2-4. Connectingthe SCXI-1190/1191 Figure2-5. Connecting the SCXI-1192 Expanding the RF Multiplexer Figure2-6. Expandingthe SCXI-1190/1191 Note Cascadingmultiplexers increases insertion loss, creates propagation delays, and can haveother RF effects. Chapter2 Usingthe SCXI-119X haveother RF effects. A Specifications SCXI-1190 Page Page Page SCXI-1191 Page Safety Certifications and Compliances CE Mark Compliance SCXI-1192 Page Safety B Common Questions Page C Technical Support Resources Web Support NI Developer Zone Customer Education System Integration Worldwide Support Glossary Symbols A C D H I M Page Page Index A B C D M N P Q R T V W