NI PXI-2530 High-Density Multiconfiguration Multiplexer/Matrix Module

The NI PXI-2530 is a high-density multiplexer/matrix switch module for PXI systems, delivering 128 crosspoint channels in a single slot. Built on reed relay technology, it routes signals across multiple topologies—from 1-wire 128×1 multiplexer configurations to 2-wire and 4-wire variants, plus 1-wire and 2-wire matrix topologies. The module handles up to 60 VDC or 30 VACrms at 0.4 A per terminal and 10 W maximum switching power. Bandwidth reaches 12 MHz in 1-wire configuration, with higher performance available in 50 Ω systems depending on topology. Relay operate/release time is 555 µs, and mechanical life extends to 1 × 10⁹ cycles under no-load conditions. Path resistance remains typically low until end-of-life, when contact resistance may exceed 3 Ω. Fast trigger recognition down to 150 ns pulse widths is supported via front panel or PXI trigger lines 0–7. The module integrates via 176-pin docking connector and operates 0 °C to 55 °C in Pollution Degree 2 environments.

– Technical Specifications

• Switching Technology: Reed relay
• Channel Count: 128 crosspoint channels
• Maximum Voltage: 60 VDC, 30 VACrms
• Maximum Current: 0.4 A per terminal
• Maximum Power: 10 W switching input power
• Bandwidth: 12 MHz (1-wire); >15 MHz (50 Ω, 16×1); >3 MHz (50 Ω, 128×1)
• Relay Operate/Release Time: 555 µs
• Mechanical Life: 1 × 10⁹ cycles (no load)
• Contact Resistance: Typically low; may exceed 3 Ω at end-of-life
• Operating Temperature: 0 °C to 55 °C
• Mechanical Shock: 30 g peak, 11 ms half-sine pulse
• Operating Vibration: 5–500 Hz, 0.3 grms
• Non-Operating Vibration: 5–500 Hz, 2.4 grms
• Altitude: Up to 2,000 m
• Trigger Pulse Width Recognition: Down to 150 ns (with digital filtering disabled)
• Front Panel Connector: 176-pin docking station plug

– Key Features

• Nine multiplexer topologies: 1-wire through 4-wire configurations with selectable channel counts (128×1 down to 16×1)
• Three matrix configurations: 1-wire 4×32, 1-wire 8×16, 2-wire 4×16
• Low contact resistance design with protective measures for capacitive and inductive loads
• Flexible triggering via front panel or integrated PXI trigger lines
• Compact single-slot form factor

– Typical Applications

• Automated test systems requiring multi-channel signal routing
• High-speed data acquisition with dynamic channel switching
• Complex signal matrix configurations in production environments

– Compatibility & Integration

The PXI-2530 fits standard PXI chassis and operates within CAT I measurement category. Terminal block configurations enable rapid topology selection without module replacement.