PXIE-2524 National Instruments Switch module

Description

PXIE-2524 National Instruments Switch module

Product Dimensions：

Product Description

The NI PXIe-2524 is a high-density, 1-wire 64×1 PXI Express multiplexer switch module. It is designed to route a single measurement instrument to one of up to 64 test points. This module is an excellent solution for applications that require a high number of channels in a compact space. The PXIe-2524 utilizes electromechanical relays to provide a robust and reliable switching solution.

Product Specifications

• Switch Type: 1-wire, 64×1 multiplexer
• Relay Type: Electromechanical relays
• Maximum Switching Voltage: 150 V (channel-to-channel)
• Maximum Switching Current: 1 A (DC or AC)
• Maximum Carry Current: 1 A (DC or AC)
• Connector Type: 78-pin D-SUB
• Bus Interface: PXI Express (3U, single slot)
• Isolation: 200 VDC (channel-to-earth ground)
• Switching Speed: 2 ms (typical)

Product Advantages

The PXIe-2524 is a powerful and versatile switch module with several key benefits:

• High Channel Density: The 64×1 configuration in a single-slot module allows for a high channel count in a compact PXI Express chassis. This is crucial for large-scale test systems where space is a premium.
• Excellent Thermal Performance: The module features a low-thermal EMF (electromotive force), which is essential for making accurate measurements of low-voltage signals. Low-thermal EMF minimizes measurement error caused by thermal gradients across the switch.
• PXI Express Integration: As a PXI Express module, it benefits from the platform’s high-speed backplane, advanced synchronization capabilities, and robust architecture, making it easy to integrate into complex automated test systems.
• Versatility: The module’s design allows it to be configured for a variety of tasks, including voltage, current, and low-frequency signal switching.

Applications

The NI PXIe-2524 is well-suited for a variety of automated test and measurement applications, particularly those requiring a high channel count. Common uses include:

• Automated Device Characterization: Multiplexing a measurement instrument to multiple test points on a device under test (DUT).
• High-Channel-Count Data Acquisition: Sequentially sampling a large number of sensors or signal lines with a single DAQ device.
• Component Testing: Testing multiple components in a production environment with a single measurement resource.

Important Considerations

For optimal performance and reliable operation, keep these points in mind when using the PXIe-2524:

• Cabling and Accessories: The PXIe-2524 requires a compatible 78-pin D-SUB cable and a terminal block (such as the NI PXI-2524 accessories) to connect your signals. Using the correct accessories is crucial for signal integrity and safety.
• Switching Relays: The module uses electromechanical relays, which have a finite lifespan. For applications with extremely high-cycle requirements, consider the mechanical relay life specifications to ensure long-term reliability.
• Software and Drivers: The module requires the NI-SWITCH driver to be installed and configured. This driver is IVI-compliant and provides a consistent API for controlling the switch.
• Voltage and Current Ratings: Always ensure that your signals do not exceed the maximum switching and carry current and voltage ratings. Exceeding these ratings can damage the relays and the module itself.

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