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NI (National Instruments) PCI-8431/4 4-Port, PCI, RS485/RS422 Serial Interface Device
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NI (National Instruments) · PCI

PCI-8431/4

The NI PCI-8431/4 is a four-channel PCI serial interface for RS485 and RS422 communication. It has RJ45 front connections and non-isolated channels.

ManufacturerNI (National Instruments)
ModelPCI-8431/4
Part Number778981-01
Product Type4-Port, PCI, RS485/RS422 Serial Interface Device
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30-Day Warrantystandard coverage
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Bus ConnectionPCI
Isolation TypeNone
Number of Serial Channels4
Supported Serial ProtocolsRS485, RS422
Front Connection TypeRJ45
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Overview

Product overview

Key product information and technical features.

The PCI-8431/4 provides four serial channels for communicating with RS485 and RS422 devices through a PCI host connection. Its RJ45 front connections and non-isolated design are important considerations when planning cabling and system integration.

The interface supports DMA transfers, multithreading and multiprocessor operation. Selectable four-wire and two-wire transceiver modes support full-duplex and half-duplex communication.

  • Four serial channels on a PCI interface.
  • Support for RS485 and RS422 serial protocols.
  • RJ45 front connections.
  • DMA transfers with multithreading and multiprocessor support.
  • Selectable four-wire and two-wire transceiver modes for full-duplex and half-duplex communication.
Verified specifications

Technical data

Verified product specifications.

Bus ConnectionPCI
Isolation TypeNone
Number of Serial Channels4
Supported Serial ProtocolsRS485, RS422
Front Connection TypeRJ45
NI part numbers778981-01
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NI

Manufacturer

PCI

Bus Connection

PCI-8431/4

This product

Platform shown as listed by NI. Confirm controller, chassis and software fit for your system with NI before integration.
Manuals & software

Technical resources

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Getting Started (NI)Getting Started · ni.com
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Specifications (NI)Specifications · ni.com
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Product Page (NI)Product Page · ni.com
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FAQ

Product-specific questions

Product-specific answers based on available technical information.

What host interface does the PCI-8431/4 use?

The PCI-8431/4 uses a PCI bus connection.

How many serial channels does it provide?

It provides four serial channels supporting RS485 and RS422 communication.

Are the serial channels isolated?

No. The PCI-8431/4 is listed as having no isolation.

What front connection type does it use?

It uses RJ45 front connections. Check the NI serial hardware documentation for the appropriate serial pinout before connecting equipment.

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