NI SCXI-1193

Description

NI SCXI – 1193 Product Description

Detailed Parameter Table

NI SCXI-1193

Product Introduction

The NI SCXI – 1193 is a high – density, 32 – channel RF multiplexer switch module, designed as a key component in high – frequency signal routing and control scenarios. It is an integral part of NI’s Signal Conditioning Extensions for Instrumentation (SCXI) series, catering to applications that demand precise handling of radio – frequency signals.

With its 32 – channel architecture, the SCXI – 1193 offers a wide range of configuration options. It can be set up as an unterminated multiplexer, an externally terminated multiplexer, or a dimensionally versatile sparse matrix. This flexibility allows it to adapt to different system requirements, whether in a simple signal – routing setup or a complex matrix – based configuration. Each configuration is capable of withstanding signal frequencies from DC to well over 500 MHz, making it suitable for a broad spectrum of high – frequency applications.

Core Advantages and Technical Highlights

High – Density Channel Count and Flexible Topologies: The 32 – channel design of the NI SCXI – 1193 enables large – scale signal routing and control. The ability to configure it into multiple topologies, such as quad 8×1 multiplexers, dual 16×1 multiplexers, and more, provides unparalleled flexibility. For example, in a multi – antenna wireless communication testbed, the different topologies can be used to selectively route signals from various antennas to the appropriate receivers or transmitters. This flexibility ensures that the module can be tailored to the specific needs of different applications, optimizing system performance and functionality.

Broad Frequency Range and Excellent RF Performance: With a frequency range spanning from DC to over 500 MHz (and a typical bandwidth > 900 MHz), the SCXI – 1193 is well – equipped to handle high – frequency signals. It can maintain RF signal integrity across a wide range of frequencies, making it suitable for applications like radar systems, where precise high – frequency signal processing is crucial. The module’s relays, made of silver palladium and gold, contribute to its low insertion loss, high isolation, and overall high – stability performance. This ensures that the signals are accurately routed and processed without significant degradation, even in demanding high – frequency environments.

Reliable Connector Design: The use of 36 high – density push – on MCX connectors for I/O and 2 SMB jacks for triggering connectors in the SCXI – 1193 ensures discrete yet manageable cabling. The MCX connectors are known for their reliable signal transmission, which is essential for maintaining the integrity of high – frequency signals. This design not only simplifies the wiring process but also reduces the risk of signal interference or loss, making it easier to integrate the module into complex systems. Whether in a laboratory setting or an industrial environment, the connector design of the SCXI – 1193 ensures stable and efficient signal transfer.

Software Programmability and Compatibility: The SCXI – 1193 is fully software – configurable. It can be programmed using NI – Switch software, allowing users to easily set up and control the module’s various topologies. This programmability makes it highly adaptable to different application requirements. It is also designed to integrate seamlessly with other high – frequency NI devices, such as the PXI – 5404 frequency generator and the PXI – 5112 high – speed digitizer. This compatibility within the NI ecosystem simplifies system integration and development, enabling engineers to build comprehensive high – frequency measurement and control systems with relative ease.

Typical Application Scenarios

Wireless Communication Testing and Development: In the wireless communication industry, the NI SCXI – 1193 is extensively used for testing and developing wireless devices. It can be used to switch and route RF signals between different components of a wireless transceiver, such as antennas, filters, and amplifiers. For instance, during the testing of a 5G base station, the module can be configured to simulate different signal paths, allowing engineers to test the performance of the base station under various conditions. The high – density channel count and flexible topologies enable the simultaneous testing of multiple components or signal paths, significantly accelerating the development and testing process.

Radar Systems and Defense Applications: Radar systems rely on precise high – frequency signal processing. The SCXI – 1193 plays a crucial role in radar applications, where it can be used to route signals between different radar components, such as transmitters, receivers, and antennas. In military defense applications, it can be used in electronic warfare systems to quickly switch and route RF signals, enabling the detection, analysis, and jamming of enemy radar signals. The module’s ability to handle high – frequency signals with low loss and high isolation is essential for ensuring the accuracy and effectiveness of radar – based defense systems.

Radio Monitoring and Spectrum Analysis: For radio monitoring and spectrum analysis applications, the SCXI – 1193 can be used to connect different radio receivers or antennas to a spectrum analyzer. This allows for the simultaneous monitoring of multiple frequency bands. In a radio monitoring station, the module can be configured to route signals from various antennas to the appropriate receivers, enabling the detection and analysis of unauthorized radio transmissions or the monitoring of spectrum usage in a given area. The broad frequency range of the module ensures that it can cover a wide spectrum of radio frequencies, making it a valuable tool for spectrum management and radio surveillance.

NI SCXI-1193

Related Model Recommendations

NI PXI/PXIe – 2593: Similar to the SCXI – 1193, the NI PXI/PXIe – 2593 is also a 50 – ohm switch module designed for high – frequency signal routing. It can be configured into various multiplexer or sparse – matrix topologies. While the SCXI – 1193 is part of the SCXI series and may be more suitable for applications where SCXI – based systems are already in place, the PXI/PXIe – 2593 is designed for use in PXI/PXIe chassis. In a large – scale high – frequency test system, a combination of SCXI – 1193 and PXI/PXIe – 2593 modules can be used to take advantage of the benefits of both the SCXI and PXI platforms, providing a more comprehensive and flexible solution for signal routing.

NI SCXI – 1160/1161: These are general – purpose relay switch modules from NI. Although they are not specifically designed for high – frequency applications like the SCXI – 1193, in some cases where a combination of general – purpose signal switching and high – frequency signal routing is required, they can be used in conjunction with the SCXI – 1193. For example, in a test setup where some low – frequency control signals need to be switched simultaneously with high – frequency RF signals, the SCXI – 1160/1161 can handle the low – frequency switching, while the SCXI – 1193 manages the high – frequency signal routing.

NI 50Ω MCX Terminator (778831 – 01): When using the SCXI – 1193 in a terminated multiplexer configuration, the NI 50Ω MCX Terminator (778831 – 01) is a recommended accessory. Connecting these terminators to the appropriate channels ensures proper termination of the RF signals, which is crucial for maintaining signal integrity and preventing signal reflections. In applications where signal quality is of utmost importance, such as in high – precision radar or wireless communication testing, using the correct terminators can significantly improve the performance of the overall system.

Installation, Commissioning and Maintenance Instructions

Installation Preparation: Before installing the NI SCXI – 1193, ensure that the SCXI chassis (such as the SCXI – 1000) is properly grounded and powered off. Verify that the chassis has an available slot compatible with the SCXI – 1193 module. Use anti – static precautions, such as wearing an anti – static wrist strap and working on a grounded surface, to prevent electrostatic discharge from damaging the module. Check the specifications of the external RF signals that will be connected to the module to ensure they are within the DC to over 500 MHz frequency range and 150 V, Cat I switching capacity. Gather the necessary cables, such as MCX – MCX, MCX – BNC, MCX – SMB, or MCX – SMA cables, which are available in 0.3 m or 1.0 m lengths, and the appropriate connectors for the module and the external devices.

Commissioning: Insert the SCXI – 1193 module into the available slot in the SCXI chassis, ensuring that it is properly seated and locked in place. Power on the chassis and connect the SCXI system to a host computer with the appropriate NI – Switch driver software installed. Use NI Measurement & Automation Explorer (MAX) to detect the module and configure its settings, such as selecting the desired topology (e.g., 16×1 multiplexer, quad 8×1 multiplexer, etc.). Calibrate the module if necessary, following the calibration procedure outlined in the NI documentation. Test the module by sending control signals to the relays and verifying that the switching operations are occurring as expected and that the RF signals are being routed correctly. Use NI software tools, such as LabVIEW, to develop and test applications that interface with the SCXI – 1193.

Maintenance Suggestions: Regularly check the module for any signs of physical damage, such as bent pins on the MCX or SMB connectors or visible signs of overheating. Inspect the cables connected to the module for any signs of wear, corrosion, or damage, especially in harsh environments. Periodically test the relays to ensure that they are still functioning properly and that the RF performance of the module has not degraded. Use NI’s software tools to monitor the performance of the module, such as checking for any abnormal switching times, high insertion loss, or low isolation values. If the module is used in an environment with high electromagnetic interference, consider using additional shielding or filtering measures to protect the module and ensure reliable operation. Keep the module’s firmware up to date by installing any available updates from NI, as these may include performance improvements and bug fixes.

Service and Guarantee Commitment

While NI has announced the obsolete status of the SCXI – 1193, some suppliers, such as Apex Waves, still offer it for purchase and repairs. Although the standard NI warranty may not be applicable in the same way as for non – obsolete products, these suppliers may provide their own service and support options. Technical support may still be available through NI’s general support channels for basic inquiries related to the module’s operation and compatibility. However, for more in – depth support or in case of complex issues, it is advisable to contact the supplier from whom the module was purchased. Some extended service agreements might be available from third – party providers, which could include services such as on – site maintenance, priority repair, and access to technical expertise related specifically to the SCXI – 1193.