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National Instruments NI PXI-7831R Physical, Maximum Working Voltage, Environmental, Safety

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Appendix A Specifications

© National Instruments Corporation A-7 NI PXI-7831R User Manual

Physical

Dimensions

(not including connectors).................... 16.0 by 10.0 cm (6.3 by 3.9 in.)

I/O connectors

NIPXI-7831R .................................Three 68-pin female high-density

VHDCI type

Maximum Working Voltage

Maximum working voltage refers to the signal voltage plus the

common-mode voltage.

Channel-to-earth.....................................±12 V, Installation Category I

Channel-to-channel................................ ±24 V, Installation Category I

Environmental

Operating temperature............................– 40 to 70 °C

Storage temperature............................... –55 to 85 °C

Humidity................................................ 10 to 90% RH, noncondensing

Maximum altitude..................................2,000 meters

Pollution Degree (indoor use only)........ 2

Safety

The NIPXI-783 1R devices meet the requirements of the following

standards for safety and electrical equipment for measurement, control, and

laboratory use:

• IEC 61010-1, EN 61010-1

• UL 3111-1

• CAN/CSA C22.2 No. 1010.1

Note For UL and other safety certifications, refer to the product label or to ni.com.

Contents

Main Page Important Information Warranty Copyright Trademarks Patents Compliance FCC/Canada Radio Frequency Interference Compliance Determining FCC Class FCC/DOC Warnings Class A Contents About This Manual Chapter 1 Introduction Chapter 2 Hardware Overview of the NI PXI-7831R Page About This Manual Conventions Reconfigurable I/O Documentation Related Documentation Introduction About the Reconfigurable I/O Devices Using PXI with CompactPCI What You Need to Get Started Getting Started with Windows 2000/XP Getting Started with the RT Module Overview of Reconfigurable I/O Reconfigurable I/O Concept Flexible Functionality User-Defined I/O Resources Device-Embedded Logic and Processing Reconfigurable I/O Architecture Page Reconfigurable I/O Applications Software Development FPGA Module RT Module Cables and Optional Equipment Custom Cabling Unpacking Safety Information Page Page National Instruments Corporation 2-1 NI PXI-7831R User Manual Hardware Overview of the NI PXI-7831R PXI/CompactPCI Bus Figure 2-1. NIPXI-7831R Block Diagram + Calibration DACs Analog Input Input Modes Input Range Connecting Analog Input Signals Types of Signal Sources Floating Signal Sources Ground-Referenced Signal Sources Input Modes Figure 2-4. Summary of Analog Input Connections Differential Connection Considerations (DIFF Input Mode) Differential Connections for Ground-Referenced Signal Sources Differential Connections for Nonreferenced or Floating Signal Sources Page Single-Ended Connection Considerations Single-Ended Connections for Floating Signal Sources (RSE Input Mode) Single-Ended Connections for Grounded Signal Sources (NRSE Input Mode) Common-Mode Signal Rejection Considerations Analog Output Connecting Analog Output Signals Digital I/O Connecting Digital I/O Signals Page Page PXI Trigger Bus PXI Local Bus Switch Settings Power Connections Field Wiring Considerations Page Calibration Loading Calibration Constants Internal Calibration External Calibration A Specifications Analog Input Input Characteristics Accuracy Information DC Transfer Characteristics Dynamic Characteristics Analog Output Output Characteristics Accuracy Information DC Transfer Characteristics Voltage Output Dynamic Characteristics Digital I/O Reconfigurable FPGA Calibration Bus Interface Power Requirement Physical Maximum Working Voltage Environmental Safety Electromagnetic Compatibility CE Compliance B Connecting I/O Signals Page Appendix B Connecting I/O Signals National Instruments Corporation B-3 NI PXI-7831R User Manual Figure B-2. NIPXI-7831R I/O Connector Pin Assignments DIO Connector Pin Assignment MIO Connector Pin Assignment Caution Connections that exceed any of the maximum ratings of input or output signals Table B-1. I/O Connector Signal Descriptions Connecting to 5B and SSR Signal Conditioning Table B-2. NIPXI-7831R I/O Signal Summary Page Figure B-3. Connector Pinouts When Using NSC68-262650 Cable AO 07 Connector AI 07 Connector DIO 015 Connector Figure B-4. Connector Pinouts When Using the NSC68-5050 Cable DIO 023 Connector DIO 2439 Connector C Using the SCB-68 Shielded Connector Block Appendix C Using the SCB-68 ShieldedConnector Block NI PXI-7831R User Manual C-2 ni.com Quick Reference Label S5 S4 S1 Figure C-2. SCB-68 Quick Reference Label for the NIPXI-7831R Technical Support and Professional Services Page Glossary Numbers/Symbols A B C D Page I L M N O P R S T V W