Description
The SCXI-1194, with a part number of 776572-94, is a Quad 4×1 High-Frequency Unterminated Multiplexer Switch Module designed to operate within the frequency range of DC to 2.5 GHz. This module stands out for its excellent performance characteristics, including minimal insertion loss, superior voltage standing wave ratio (VSWR), and remarkable isolation levels, ensuring reliable and high-quality signal routing for various applications.
Characterized by a 50 Ω impedance, the SCXI-1194 facilitates connectivity through SMA connectors, which are renowned for their precision and durability in high-frequency applications. The module supports a maximum voltage rating of 30 Vrms and can handle a maximum exchanging current of up to 500 mA, making it versatile for a wide range of electronic configurations.
An innovative feature of the SCXI-1194 is its onboard relay counting capability, which can be accessed and managed through programming. This function enhances the module’s utility by allowing users to monitor and maintain the system’s performance over time. Furthermore, the module is compatible with NI-SWITCH drivers that are IVI-compliant, ensuring seamless integration with existing software environments and simplifying the setup process.
Physically, the SCXI-1194 measures 1.2 x 6.8 x 7.8 inches and weighs approximately 1 oz (2 lb), making it compact yet robust enough for both laboratory and field applications. It operates effectively within a temperature range of 0 °C to 50 °C and can be stored in conditions ranging from –20 °C to 70 °C. The relative humidity range for operation is 5% to 85% (non-condensing), ensuring reliability under various environmental conditions.
Compliance with multiple safety and performance standards, including IEC 61010-1, EN 61010-1, UL 61010-1, and CAN/CSA-C22.2 No. 61010-1, underscores the SCXI-1194’s commitment to quality and safety. Despite being declared obsolete by National Instruments, it remains available for purchase, offering a valuable solution for high-frequency switching applications.
| Specification | Detail |
|---|---|
| Part Number | 776572-94 |
| Model | SCXI-1194 |
| Type | Quad 4×1 High-Frequency Unterminated Multiplexer Switch Module |
| Frequency Range | DC to 2.5 GHz |
| Impedance | 50 Ω |
| Connectivity | SMA |
| Insertion Loss | Excellent |
| VSWR | Excellent |
| Isolation | Excellent |
| Maximum Voltage Rating | 30 Vrms |
| Maximum Exchanging Current | 500 mA |
| Relay Counting | Onboard, with retrieval through programming |
| Driver Compatibility | NI-SWITCH (IVI-compliant) |
| Physical Dimensions | 1.2 x 6.8 x 7.8 in |
| Weight | 1 oz (2 lb) |
| Operating Temperature Range | 0 °C to 50 °C |
| Storage Temperature Range | –20 °C to 70 °C |
| Relative Humidity Range | 5% to 85% (non-condensing) |
| Compliance | IEC 61010-1, EN 61010-1, UL 61010-1, CAN/CSA-C22.2 No. 61010-1 |
| Obsolete Status | Declared by National Instruments, available for purchase and
Question 1: What is the frequency range of the SCXI-1194? Question 2: What type of connectors does the SCXI-1194 use? Question 3: What is the maximum voltage rating of the SCXI-1194? Question 4: Is the SCXI-1194 compatible with NI-SWITCH drivers? Question 5: What is the impedance of the SCXI-1194? |


