Description
The NI SCXI-1521B is defined by its part number 777966-21B and falls under the SCXI & Legacy category. It is a 24-Channel 120 Ohm 1/4-Bridge Strain Input Module, specifically designed for static and fatigue structural tests with 120 Ω quarter-bridge strain gauges. This module boasts 24 channels, each equipped with a fixed-gain amplifier and a fixed 2-pole Butterworth filter. Additionally, it features an individual 0-5 V programmable excitation source per channel, enhancing its versatility in various testing environments.
The SCXI-1521B is compatible with software versions NI-DAQmx 7.3 or later, LabVIEW, and LabWindows/CVI, ensuring a wide range of usability options for different applications. For optimal operation, the SCXI-1317 Front-Mounting Terminal Block is required, while the SCXI-1310 Connector and Shell Assembly, TBX-96 DIN-rail Mounted Terminal Block are optional accessories that can be added for enhanced functionality. The module utilizes a 96-pin DIN C male connector type, ensuring a secure and reliable connection for data transmission.
Despite its obsolete status announced by National Instruments, the SCXI-1521B remains available for purchase and repairs through Apex Waves. This ensures that users can continue to rely on this essential component for their structural testing needs without concern for its discontinued status.
| Specification | Detail |
|---|---|
| Part Number | 777966-21B |
| Category | SCXI & Legacy |
| Model | SCXI-1521B |
| Description | NI SCXI-1521B, 24-Channel 120 Ohm 1/4-Bridge Strain Input Module |
| Applications | Static and fatigue structural tests with 120 Ω quarter-bridge strain gauges |
| Channels | 24 |
| Amplifier | Fixed-gain |
| Filter | Fixed 2-pole Butterworth |
| Excitation Source | Individual 0-5 V programmable per channel |
| Software Compatibility | NI-DAQmx 7.3 or later, LabVIEW, LabWindows/CVI |
| Required Accessories | SCXI-1317 Front-Mounting Terminal Block |
| Optional Accessories | SCXI-1310 Connector and Shell Assembly, TBX-96 DIN-rail Mounted Terminal Block |
| Connector Type | 96-pin DIN C male |
| Obsolete Status | Announced by National Instruments, available for purchase and repairs by Apex Waves |



