The National Instruments SCXI-1191 Multiplexer Module is engineered for high-performance signal switching, utilizing single-pole double-throw, high-bandwidth relays capable of handling frequency signals from DC to 4 GHz. With a maximum switch voltage of 30 V and a rated current of 0.33 A at this voltage, the SCXI-1191 operates exclusively in multiplexed mode. This module can be integrated into a PXI combination chassis, such as the PXI-1010 or PXI-1011, where it seamlessly interacts with a PXI MIO data acquisition device or a compatible computer-based device in the designated rightmost slot of the chassis. The design eliminates the need for external cabling between the PXI multifunction I/O module and the SCXI bus, as the connection is facilitated by a local bus interface.

To remove the SCXI-1191 from the Measurement & Automation Explorer, users should access the application, navigate to the Devices and Interfaces section, locate and expand the relevant chassis, and right-click the module or chassis intended for deletion. Confirming the deletion will remove the module, along with any associated configuration details within the SCXI chassis. Please note that while the SCXI-1191 has been declared obsolete, it remains available for purchase and repair through Apex Waves.

The SCXI-1191 features four banks, each providing four channels, and is equipped with 20 SMA jacks for I/O connectivity. Its compact dimensions are 1.2 inches in height, 6.7 inches in width, and 7.6 inches in depth, with a weight of 1 lb. 13 oz. The module is backed by a warranty of 2 to 3 years, with user and maintenance manuals available for download, and pricing inquiries can be directed to a sales representative for a quote.