The National Instruments SCXI-1194 is a high-performance quad 4x1 RF Multiplexer Switch Module, part number 776572-94, designed for high-density multiplexing applications. This robust module operates with a frequency range from DC to 2.5 GHz, accommodating a main impedance of 50 Ω across its channels. Featuring SMA direct connectivity, the SCXI-1194 ensures excellent insertion loss and outstanding voltage standing wave ratio (VSWR) and isolation characteristics, making it ideal for handling high-frequency signals in digital test equipment systems. The module boasts a maximum voltage rating of 30 Vrms and can switch currents up to 500 mA, optimizing performance for demanding applications.

The SCXI-1194 includes onboard relay counting, recording the number of relay actuations for predictive maintenance, thus helping to reduce unplanned system downtime. This information can be easily retrieved through programming. Additionally, the module is compatible with NI-SWITCH, an IVI-compliant driver that provides comprehensive control and functionality, while NI Switch Executive offers intuitive switch management and visualization tools for more complex switching configurations. For ease of use, the NI-SWITCH Soft Front Panel allows convenient relay operation and debugging capabilities.

With dimensions of 1.2 by 6.8 by 7.8 inches and weighing 2 lbs 1 oz, the SCXI-1194 meets various environmental specifications, including an operating temperature range of 0 °C to 50 °C and a storage temperature range of -20 °C to 70 °C, while supporting a non-condensing relative humidity range of 5% to 85%. The module adheres to prominent electrical safety standards, including IEC 61010-1, EN 61010-1, UL 61010-1, and CAN/CSA-C22.2 No. 61010-1. While the SCXI-1194 has been declared obsolete by National Instruments, it remains available for purchase and repair through Apex Waves. Users can access the user and maintenance manuals for further guidance. For pricing, please contact a sales representative.