NI PXIE-2531 PXI Matrix Switch Module

Description

NI PXIE-2531 PXI Matrix Switch Module

The NI PXIe-2531 is a high-density, 512-crosspoint matrix switch module designed for high-channel-count automated test systems. It is primarily used to route signals between instruments and Units Under Test (UUTs) with high speed and reliability.

1. Key Product Specifications

The PXIe-2531 is built on Reed Relay technology, providing a balance of speed and longevity.

2. Product Advantages

• High Density in a Single Slot: Offers 512 crosspoints in a single PXI Express slot, saving valuable rack space.

• Fast Switching Speeds: Utilizing reed relays allows for significantly faster actuation times (sub-millisecond) compared to traditional electromechanical armatures.

• Onboard Relay Counting: Tracks relay cycles to assist in predictive maintenance and system uptime.

• Hardware Triggers: Supports PXI triggers, allowing the switch to synchronize with DMMs or oscilloscopes for high-speed automated sequences without software overhead.

• Scalability: Multiple modules can be linked together using terminal blocks or cables to create even larger matrices (e.g., 4×256 or 8×128).

3. Applications

The NI PXIe-2531 is ideal for environments where many measurement points must be connected to a few instrument channels.

• Massive Parallel Testing: Routing signals in semiconductor or PCB functional testing.

• Data Acquisition (DAQ): Scanning hundreds of sensors (voltages, temperatures) into a single measurement device.

• Hardware-in-the-Loop (HIL): Simulating various fault conditions or routing signals between real-time controllers and physical hardware.

• Consumer Electronics Testing: Validating multiple connection points on smartphones, tablets, or automotive ECUs.

4. Critical Considerations & Precautions

Important: Failure to follow electrical limits can lead to welded relays or permanent damage to the module.

• Power Limitations: Ensure the signal does not exceed 10 W. Reed relays are sensitive to even brief power spikes.

• Inductive Loads: If switching inductive loads (like motors or large solenoids), use flyback diodes or snubbers to prevent “arcing” that can weld the contacts.

• Cold Switching: To maximize relay life, it is recommended to “cold switch” (turn off the signal source before opening or closing the relay).

• Cabling: Given the high density, high-quality shielded cables and terminal blocks (such as the TB-2631) are necessary to maintain signal integrity and reduce crosstalk.

5. Recommended Software & Accessories

• Driver: NI-SWITCH

• Soft Front Panel: NI Switch Health Center (for testing and manual control)

• Terminal Block: NI TB-2631 (specifically designed for the 2531 to simplify wiring)

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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