Description

The NI PXIE-8861 is a high-performance, quad-core embedded controller engineered specifically for the PXI Express platform, serving as the central computing and system management hub for sophisticated automated test, measurement, and control systems. Manufactured by National Instruments (NI), this powerful controller is designed to be installed in the system slot of a PXIe chassis, where it provides the processing power, operating system, and high-speed communication pathways necessary to coordinate all modules within the rack. The NI PXIE-8861 effectively transforms a modular PXIe system into a fully integrated, stand-alone solution, eliminating the need for an external PC and thus enhancing system reliability, compactness, and performance.

Equipped with a powerful Intel Core i7 multi-core processor and advanced memory architecture, the NI PXIE-8861 is built to handle computationally intensive tasks such as real-time signal processing, complex data analysis, and advanced control algorithms. It seamlessly integrates with NI’s industry-standard LabVIEW and FlexRIO software ecosystems, providing engineers with a familiar and powerful environment for rapid application development. By centralizing control and data processing within the chassis, the NI PXIE-8861 minimizes latency and maximizes data throughput, making it an indispensable component for high-speed production test, military and aerospace validation, and advanced research and development applications. Its robust design ensures reliable operation in demanding environments, solidifying its role as the intelligent core of mission-critical systems.

NI PXIE-8861

Technical Specifications

Main Features and Advantages

The NI PXIE-8861 delivers exceptional system performance, largely due to its powerful Intel Core i7 quad-core processor. This processing muscle is critical for handling complex algorithms, real-time data analysis, and managing multiple tasks concurrently without introducing bottlenecks. The high-speed PXI Express Gen 2.0 interface provides an x8 link to the chassis backplane, ensuring maximum data throughput between the NI PXIE-8861 and other high-speed instrumentation modules, which is essential for applications involving high-bandwidth data acquisition or waveform generation.

Software and Hardware Integration: A key advantage of the NI PXIE-8861 is its seamless integration with the NI software ecosystem, including LabVIEW and LabWindows/CVI. This tight integration drastically reduces system development time and complexity. The onboard SSD provides fast boot times and reliable, shock-resistant storage for the operating system and applications, which is a significant benefit in mobile or vibration-prone environments. Furthermore, the inclusion of both USB 3.0 and Gigabit Ethernet ports offers flexible connectivity for peripherals, external storage, and network communication.

Ruggedness and Reliability: Designed for deployment in challenging industrial and military environments, the NI PXIE-8861 benefits from the inherent robustness of the PXI platform. By consolidating the computing core within the chassis, it reduces cable connections and external component failures, enhancing overall system mean time between failures (MTBF). Its support for NI Linux Real-Time offers a deterministic option for applications requiring strict timing and reliability, making the NI PXIE-8861 a versatile and dependable choice for 24/7 operational systems.

Application Field

The NI PXIE-8861 is a cornerstone in fields that demand high-speed, reliable, and integrated computing for test and measurement. In automated test equipment (ATE), it serves as the central controller for complex production line testing of electronics, semiconductors, and wireless devices, where its processing power enables rapid execution of test sequences and data logging. For research and development engineers, the NI PXIE-8861 is instrumental in prototyping and validating new designs, particularly in the aerospace and defense sectors for testing radar, satellite communication systems, and electronic warfare components, where its high-throughput capabilities are essential.

In the automotive industry, the NI PXIE-8861 is deployed in hardware-in-the-loop (HIL) simulation systems to test and validate electronic control units (ECUs) under real-time simulated vehicle conditions. Its deterministic performance when running a real-time OS is critical for these applications. Additionally, the controller is widely used in high-channel-count data acquisition systems for structural test and monitoring, where it aggregates and processes data from hundreds of sensors. Any application that requires a compact, rugged, and high-performance computer at the heart of a modular instrumentation system is an ideal use case for the NI PXIE-8861.

Related Products

NI PXIe-8880: A higher-performance successor to the NI PXIE-8861 featuring a more modern Intel Xeon processor.

NI PXIe-1085: A high-performance 18-slot PXIe chassis that is an ideal enclosure for the NI PXIE-8861.

NI PXI-8108: An earlier generation PXI (not Express) embedded controller for legacy systems.

NI PXIe-8135: Another high-performance PXIe embedded controller based on an Intel Core i7 processor, offering a different performance tier.

NI TB-2706: A termination block for digital I/O, representing the type of peripheral module the NI PXIE-8861 can control.

NI PXIe-7842R: A reconfigurable I/O module (FlexRIO) that pairs powerfully with the NI PXIE-8861 for custom hardware processing.

NI PXIe-4309: A high-speed analog input module, exemplifying the data acquisition hardware that the NI PXIE-8861 can manage.

NI 1466: A development kit or accessory pack that may include controllers and modules.

NI PXIE-8861

Installation and Maintenance

Pre-installation preparation: Before installing the NI PXIE-8861, ensure the PXIe chassis is powered off and disconnected from all power sources. Confirm that the chassis has a compatible system slot and that its firmware is up to date. Have the necessary operating system drivers and NI application software (like LabVIEW) ready for installation on the controller’s SSD. It is critical to use an appropriate anti-static wrist strap and handle the NI PXIE-8861 only by its edges to prevent damage from electrostatic discharge.

Maintenance recommendations: For optimal long-term performance of the NI PXIE-8861, ensure the chassis cooling system is functioning correctly and that air vents are not obstructed. Periodically check for and install any recommended software updates or security patches from National Instruments. Regularly back up the system configuration and critical application files from the onboard SSD. Monitoring the system’s health and temperature through software utilities provided by NI can help in proactive maintenance. If the NI PXIE-8861 requires servicing, it should be performed by qualified personnel in accordance with NI’s guidelines.