NI SCXI-1193

Description

Product Overview

The NI SCXI-1193 is a high-bandwidth multiplexer switch module from National Instruments (NI), designed for high-frequency signal routing in the SCXI (Signal Conditioning eXtensions for Industry) modular data acquisition system. Engineered to handle signals up to 500 MHz, this 32-channel module enables precise switching between multiple signal sources, making it ideal for applications requiring high-frequency signal conditioning, such as RF testing, vibration analysis, or communication equipment validation. The SCXI-1193 features 机电式闭锁继电器 (electromechanical latching relays) for reliable signal integrity and supports configurable topologies, including 4×8:1 or 2×16:1 multiplexing, to adapt to diverse measurement needs. As part of the SCXI ecosystem, it integrates seamlessly with NI’s DAQ devices and LabVIEW software, providing a robust solution for automated testing and high-speed data acquisition.

Technical Specifications

NI SCXI-1193

Main Features and Advantages

High-Frequency Signal Handling: The NI SCXI-1193 supports signals up to 500 MHz, making it suitable for RF and high-speed digital applications. Its >900 MHz bandwidth ensures minimal signal degradation, preserving integrity for precise measurements in communications testing or microwave component validation.
Configurable Topology: The module allows flexible configuration as the 多路复用器 (multiplexer) or sparse matrix, enabling users to optimize signal routing for specific needs. This adaptability is crucial for complex setups requiring dynamic channel switching, such as multi-point vibration monitoring in aerospace testing.
Reliable Relay Design: 机电式闭锁继电器 (Electromechanical latching relays) offer low contact resistance and high durability, ensuring consistent performance over millions of operations. Unlike solid-state switches, they minimize signal distortion and support high-voltage signals up to 200 V.
Modular SCXI Integration: As a SCXI module, the SCXI-1193 mounts in the SCXI-1000 chassis alongside other signal conditioning components, enabling seamless integration with amplifiers, filters, or DAQ devices. This modularity simplifies system expansion for evolving measurement requirements.
LabVIEW Compatibility: The module integrates tightly with NI’s LabVIEW software, allowing users to automate channel switching, create custom test sequences, and visualize real-time data. This reduces programming complexity and accelerates test system deployment.

Application Field

The NI SCXI-1193 is essential in high-frequency testing environments, such as RF circuit debugging for wireless communication devices. It enables engineers to switch between multiple antennas or test points, streamlining performance validation for 5G base stations or satellite communications. In aerospace, the module supports vibration analysis of aircraft components by multiplexing signals from accelerometers across different test points, ensuring comprehensive structural health monitoring.

For academic research, the SCXI-1193 facilitates high-speed data acquisition in physics experiments, such as measuring electromagnetic field interactions or high-frequency signal propagation. In automotive R&D, it supports multiplexing of sensor signals during engine dynamometer testing, enabling simultaneous analysis of multiple parameters like exhaust emissions or combustion pressure. Additionally, the module is used in semiconductor manufacturing for wafer testing, where it routes high-frequency signals to probe stations for device characterization.

NI SCXI-1193

Related Products

SCXI-1000: A modular chassis that houses the SCXI-1193, providing power and mechanical support for multi-module setups.
PXI-5404: A high-frequency function generator compatible with the SCXI-1193, ideal for generating test signals in RF applications.
PXI-5112: A high-speed digitizer that pairs with the SCXI-1193 for capturing transient signals in communications testing.
SCXI-1324: A terminal block for the SCXI-1193, enabling secure field wiring for sensor connections.
MCX-BNC Cables: Cables that interface with the SCXI-1193’s MCX connectors, ensuring low-loss signal transmission for high-frequency applications.

Installation and Maintenance

Pre-installation preparation: Install the NI SCXI-1193 in a SCXI-1000 chassis with compatible power supplies (+5 V, ±18.5–25 V). Use 50-ohm MCX cables to connect high-frequency signals, ensuring proper shielding to minimize EMI. For trigger inputs, use SMB cables to synchronize switching with external devices. Refer to NI’s documentation to configure the module’s topology (e.g., 8×1 multiplexer) via software or hardware jumpers.
Maintenance recommendations: Avoid exceeding the SCXI-1193’s voltage ratings (200 V max) to prevent relay damage. Periodically inspect MCX connectors for wear or corrosion, replacing damaged cables to maintain signal integrity. If switching errors occur, reset the module via the SCXI chassis or software. Note that NI has discontinued the SCXI-1193; consult authorized service providers for repairs or replacement parts.

Product Guarantee

The NI SCXI-1193 was backed by NI’s standard 3-year warranty during production. While now discontinued, existing units may still be serviced through NI’s repair channels. Technical support for software integration (e.g., LabVIEW drivers) remains available via NI’s online resources, ensuring compatibility with legacy systems. Users are advised to stock spare modules or transition to NI’s modern PXIe switching solutions for long-term support. This guarantee reflects NI’s commitment to legacy product reliability, even as technology evolves.