NI-Serial 2023 Q2 for Linux/x86 64-bit Architecture Readme

April 2023

This file contains installation instructions and compatibility information for NI-Serial 2023 Q2.

You can find more release information on ni.com.


System Requirements

Installation Instructions

Supported Hardware

Behavior Changes

Accessing the Documentation

Finding Examples


System Requirements

NI-Serial software for the Linux/x86 64-bit architecture has been tested on the following distributions:

  • openSUSE Leap 15.4
  • openSUSE Leap 15.3
  • Red Hat Enterprise Linux 9
  • Red Hat Enterprise Linux 8
  • Ubuntu 22.04
  • Ubuntu 20.04

NI-Serial requires a 64-bit distribution.

Installation Instructions

NI provides a repository add-on for all supported drivers that you can install using your Linux distribution's native package manager.

  1. Visit ni.com/info and enter the Info Code LinuxRepository.
  2. Download the installer for the repository add-on for your Linux distribution.
  3. Install the repository add-on using the rpm command.
  4. Select and install the following NI-Serial driver packages through your Linux distribution's package manager:
    • ni-serial

After the driver package(s) are installed, you must rebuild the new packages for the system kernel. NI recommends that you run the command 'dkms autoinstall' after installation, and before rebooting the system, to install the latest revision of all modules that have been installed for other kernel revisions. After doing so, the installed device drivers will function immediately on the next system start.

Supported Hardware

Visit NI Hardware and Operating System Compatibility to view driver, desktop operating system, and real-time operating system support for individual hardware devices.

To view information for your device:

  • Select your hardware model in the dropdown list on the page to view compatibility information for your device.
  • Type your hardware model number in the dropdown list on the web page to filter the list of available devices.

Note: Some compatibility information may only be available in the archive attached to the NI Hardware and Operating System Compatibility page. For historic driver and OS support information, refer to the readme for the relevant driver version.

Additional Hardware Support Information

PCI Interfaces Standard Number of Ports Isolated Max Baud (kbaud)
PCI-8430/2 RS-232 2 No 1000.0
PCI-8430/4 RS-232 4 No 1000.0
PCI-8430/8 RS-232 8 No 1000.0
PCI-8430/16 RS-232 16 No 1000.0
PCI-8431/2 RS-485/RS-422 2 No 3000.01
PCI-8431/4 RS-485/RS-422 4 No 3000.01
PCI-8431/8 RS-485/RS-422 8 No 3000.01
PCI-8432/2 RS-232 2 Yes 1000.0
PCI-8432/4 RS-232 4 Yes 1000.0
PCI-8433/2 RS-485/RS-422 2 Yes 3000.01
PCI-8433/4 RS-485/RS-422 4 Yes 3000.01

PCI Express Interfaces Standard Number of Ports Isolated Max Baud (kbaud)
PCIe-8430/2 RS-232 2 No 1000.0
PCIe-8430/8 RS-232 8 No 1000.0
PCIe-8430/16 RS-232 16 No 1000.0
PCIe-8431/2 RS-485/RS-422 2 No 3000.01
PCIe-8431/8 RS-485/RS-422 8 No 3000.01
PCIe-8431/16 RS-485/RS-422 16 No 3000.01
PCIe-8432/2 RS-232 2 Yes 1000.01
PCIe-8433/2 RS-485/RS-422 2 Yes 1000.01

PXI Interfaces Standard Number of Ports Isolated Max Baud (kbaud)
PXI-8430/2 RS-232 2 No 1000.0
PXI-8430/4 RS-232 4 No 1000.0
PXI-8430/8 RS-232 8 No 1000.0
PXI-8430/16 RS-232 16 No 1000.0
PXI-8431/2 RS-485/RS-422 2 No 3000.01
PXI-8431/4 RS-485/RS-422 4 No 3000.01
PXI-8431/8 RS-485/RS-422 8 No 3000.01
PXI-8432/2 RS-232 2 Yes 1000.0
PXI-8432/4 RS-232 4 Yes 1000.0
PXI-8433/2 RS-485/RS-422 2 Yes 3000.01
PXI-8433/4 RS-485/RS-422 4 Yes 3000.01

PXI Express Interfaces Standard Number of Ports Isolated Max Baud (kbaud)
PXIe-8430/8 RS-232 8 No 1000.0
PXIe-8430/16 RS-232 16 No 1000.0
PXIe-8431/8 RS-485/RS-422 8 No 3000.01,2
PXIe-8431/16 RS-485/RS-422 16 No 3000.01,2

1The two-wire auto control mode for RS-485 transceiver control has a maximum baud rate of 2 Mbaud.

2For possible use with higher baud rates, refer to ni.com/kb and search for KnowledgeBase 58KEI82F.

Behavior Changes

The following RS-485 transceiver modes are no longer supported, beginning with kernel version 5.15.79:

  • 2-Wire DTR
  • 2-Wire DTR with echo.

Accessing the Documentation

Use a web browser to view the NI-Serial documentation at ni.com/docs.

Finding Examples

This release includes examples showing the use of NI-Serial in LabVIEW.

The LabVIEW examples are located in the LabVIEW examples directory.

Be sure to run the device configuration utility (described in the Installation section) before running examples.