National Instruments BNC-2140

National Instruments Corporation 4-1 BNC-2140 User Manual

Theory of Operation

This chapter contains a functional overview of the BNC-2140.

UM.book Page 1 Tuesday, July 14, 1998 10:37 AM

Contents

Main Page Important Information Warranty Copyright Trademarks WARNING REGARDING MEDICAL AND CLINICAL USE OF NATIONAL INSTRUMENTS PRODUCTS Contents Page About This Manual Organization of This Manual Conventions Used in This Manual Related Documentation Customer Communication Introduction What You Need to Get Started Unpacking Optional Equipment Custom Cabling Installation and Configuration Installation Device Configuration Page Signal Connections I/O Connectors Page Chapter 3 Signal Connections National Instruments Corporation 3-3 BNC-2140 User Manual Figure3 -1 describes the pin connections on the BNC-2140 68-pin connector. Figure 3-1. BNC-2140 External 68-Pin Analog Connector Page Analog Input Signal Connections Analog Output Signal Connections Page Chapter 4 Theory of Operation National Instruments Corporation BNC-2140 User Manual 4-2 Functional Overview Figure4 -1 is a block diagram of the BNC-2140. Figure 4-1. BNC-2140 Block Diagram Analog Input Circuitry Analog Output A Specifications Analog Input Voltage Input Current Excitation Analog Output Power Requirement (from DSA board) Physical Environment B Customer Communication Electronic Services Bulletin Board Support FTP Support Fax-on-Demand Support Telephone and Fax Support Country Telephone Fax Technical Support Form Documentation Comment Form Title: Edition Date: Part Number: Mail to: Technical Publications Fax to: Technical Publications Glossary Numbers/Symbols A B C D E F G H I K L M N O P R S T U V W Index Numbers A B C E F I M O T U V