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NI (National Instruments) PCIe-8431/8 PCI Express, 8-Port, RS485/RS422 Serial Interface Device
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NI (National Instruments) · PCI Express

PCIe-8431/8

The NI PCIe-8431/8 is an 8-port RS485/RS422 serial interface device with a PCI Express bus connection. It provides non-isolated serial channels through a VHDCI front connection.

ManufacturerNI (National Instruments)
ModelPCIe-8431/8
Part Number780592-01
Product TypePCI Express, 8-Port, RS485/RS422 Serial Interface Device
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30-Day Warrantystandard coverage
30-Day Returnspolicy applies
Technical Supportmodel & compatibility help
Bus ConnectionPCI Express
Isolation TypeNone
Number of Serial Channels8
Supported Serial ProtocolsRS485, RS422
Front Connection TypeVHDCI
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Overview

Product overview

Key product information and technical features.

The PCIe-8431/8 provides eight serial channels for communication with RS485 and RS422 devices through a PCI Express connection. It belongs to the NI Serial Interface family and uses a VHDCI front connection.

The interface features high-performance DMA transfers, multithreading and multiprocessor support. Selectable 4-wire and 2-wire transceiver modes support full- and half-duplex communication.

  • Eight serial channels on a PCI Express interface.
  • Supports RS485 and RS422 serial protocols.
  • Provides a VHDCI front connection.
  • Includes high-performance DMA transfers, multithreading and multiprocessor support.
  • Supports selectable 4-wire and 2-wire transceiver modes for full- and half-duplex communication.
Verified specifications

Technical data

Verified product specifications.

Bus ConnectionPCI Express
Isolation TypeNone
Number of Serial Channels8
Supported Serial ProtocolsRS485, RS422
Front Connection TypeVHDCI
NI part numbers780592-01
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NI

Manufacturer

PCI Express

Bus Connection

PCIe-8431/8

This product

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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.

How many serial channels does the PCIe-8431/8 have?

The PCIe-8431/8 has eight serial channels supporting RS485 and RS422.

What host interface and front connection does it use?

It uses a PCI Express host bus connection and a VHDCI front connection.

Does the PCIe-8431/8 provide isolation?

No. The specified isolation type for this model is None.

Does it support 2-wire and 4-wire communication?

Yes. It supports selectable 2-wire and 4-wire transceiver modes for half- and full-duplex communication.

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