National Instruments BNC-9920 Operating Instructions And Specifications

National Instruments BNC-9920 Operating Instructions And Specifications Manual pdf 1 page image

OPERATING INSTRUCTIONS AND SPECIFICATIONSBNC-9920Connector Accessory for C Series ModulesThis document describes how to install, configure, and use the BNC-9920 accessory with C Seriesmodules. This document also contains accessory specifications.The BNC-9920 has the following features:• Eight BNC connectors for analog input (AI) connection• Onboard temperature reference• Thermocouple connector• Resistor measurement screw terminals• Two BNC connectors for analog output (AO) connection• Eight screw terminals with state indicators for digital I/O (DIO) connection• 12 screw terminals for additional DIO connection• One BNC connector for DIO connection• Two user-defined BNC connectors• A function generator with the following outputs:– Frequency-adjustable, TTL-compatible square wave– Frequency- and amplitude-adjustable sine wave or triangle wave• Quadrature encoder• A 68-pin I/O connector that connects to three C Series modules using the BNC-9920 cable• Can be used on a desktop or mounted on a DIN railContentsConventions ......................................................................................................................................... 2What You Need to Get Started ............................................................................................................ 2Installing the BNC-9920...................................................................................................................... 2Connecting Analog Input Signals ........................................................................................................ 4Connecting Differential Analog Input Signals ............................................................................ 4Measuring Floating Signals ................................................................................................. 5Measuring Ground-Referenced Signals............................................................................... 5Measuring Temperature............................................................................................................... 6Measuring Resistance .................................................................................................................. 6Connecting Analog Output Signals ..................................................................................................... 7Using the Function Generator.............................................................................................................. 7Connecting User-Defined Signals ....................................................................................................... 7Connecting Digital I/O Signals............................................................................................................ 8Using the Quadrature Encoder..................................................................................................... 8Specifications....................................................................................................................................... 9Environmental Management........................................................................................................ 12Where to Go for Support ..................................................................................................................... 13