NI Delivers Flexible Baud Rates with 8 High-Performance Serial Interfaces

6/2/2004 - National Instruments announced eight new RS-232/485 serial interfaces that deliver advanced features such as flexible baud rates up to 1 Mb/s and universal PCI, hyperthreading and multiprocessor support. The improved speed and flexibility of the new NI 843x family of serial boards, combined with the recently released LabVIEW 7.1 I/O Assistant, offer increased productivity for serial applications such as machine control, manufacturing test and traditional instrument control.

The NI 843x family of serial boards delivers flexible baud rate capabilities that engineers can use to communicate with devices that operate with non-standard baud rates ranging from 57 b/s to 1 Mb/s. The boards also work with devices such as cell phones that require communication using both standard and non-standard baud rates.

With multiprocessor and hyperthreading support, engineers also can take advantage of the latest PC technology for higher speeds and improved efficiency. The new driver software included with the boards offers better resource allocation and universal PCI support for 3.3 V and 5 V I/O, as well as DMA access for higher throughput with minimal CPU usage. In addition, the NI 843x family of serial boards includes new memory mapping features that engineers can use to connect to more serial devices without resource conflicts.

The NI 843x family of boards offers overall increased productivity and ease of use for serial programming, working with the recently released LabVIEW 7.1 Instrument I/O Assistant and the more than 3,000 instrument drivers available for download at Engineers can use these combined resources to make programming using serial communications faster and more efficient, saving valuable time and resources.

About National Instruments
National Instruments ( is a technology pioneer and leader in virtual instrumentation – a revolutionary concept that has changed the way engineers and scientists approach measurement and automation. Leveraging the PC and its related technologies, virtual instrumentation increases productivity and lowers costs through easy-to-integrate software, such as the NI LabVIEW graphical development environment, and modular hardware, such as PXI modules for data acquisition, instrument control and machine vision. Headquartered in Austin, Texas, NI has more than 3,100 employees and direct operations in 40 countries. In 2003, the company sold products to more than 25,000 companies in 90 countries. For the past five years, FORTUNE magazine named NI one of the 100 best companies to work for in America. Readers may obtain investment information from the company’s investor relations department by calling (512) 683-5090, by sending e-mail to or by visiting

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