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NI (National Instruments) PCI-8431/2 2-Port, PCI, RS485/RS422 Serial Interface Device
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NI (National Instruments) · PCI

PCI-8431/2

The NI PCI-8431/2, part number 778980-01, is a two-port PCI serial interface supporting RS485 and RS422. It provides two non-isolated serial channels with D-SUB connections.

ManufacturerNI (National Instruments)
ModelPCI-8431/2
Part Number778980-01
Product Type2-Port, PCI, RS485/RS422 Serial Interface Device
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30-Day Warrantystandard coverage
30-Day Returnspolicy applies
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Bus ConnectionPCI
Isolation TypeNone
Number of Serial Channels2
Supported Serial ProtocolsRS485, RS422
Front Connection TypeD-SUB
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Overview

Product overview

Key product information and technical features.

The PCI-8431/2 adds two RS485/RS422 serial channels to a PCI-based system. Its non-isolated interface uses D-SUB front connections.

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

  • Two serial channels supporting RS485 and RS422.
  • PCI bus interface with D-SUB front connections.
  • Selectable 4-wire and 2-wire transceiver modes for full-duplex and half-duplex communication.
  • DMA transfers, multithreading, and multiprocessor support.
Verified specifications

Technical data

Verified product specifications.

Bus ConnectionPCI
Isolation TypeNone
Number of Serial Channels2
Supported Serial ProtocolsRS485, RS422
Front Connection TypeD-SUB
NI part numbers778980-01
Condition & included items

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NI

Manufacturer

PCI

Bus Connection

PCI-8431/2

This product

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Manuals & software

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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 serial protocols does the PCI-8431/2 support?

It supports RS485 and RS422 across two serial channels.

What host interface does the PCI-8431/2 use?

It uses a PCI bus connection.

Does the PCI-8431/2 provide isolation?

No. The listed isolation type is None.

Which transceiver modes are supported?

Selectable 4-wire and 2-wire modes support full-duplex and half-duplex communication.

What is the listed NI part number?

The supplied verified catalog data identifies part number 778980-01 for the PCI-8431/2.

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