NI PXI-2584 12-Channel Multiplexer

The NI PXI-2584 is a 12-channel multiplexer switch module for PXI systems delivering high-density signal routing in automated test and measurement applications. Built with reed relays featuring rhodium contacts, this module handles multiple topologies—1-wire 12×1, 1-wire dual 6×1, 2-wire 6×1, and user-implemented 11×1 interleaved configurations—making it ideal for high-voltage testing environments including fuel cell and battery stack validation.

– Technical Specifications

• Channels: 12
• Relay Type: Reed relays with rhodium contact material
• Relay Mechanical Life: 3 × 10⁸ cycles
• Relay Operating Time: 0.4 ms typical
• Maximum Switching Voltage: 300 V CAT II (channel-to-ground); 600 V DC/AC peak CAT I (channel-to-ground); 300 V (channel-to-channel)
• Impulse Voltage Withstand: Up to 2,500 V
• Maximum Switching Power: 10 W
• Switching Current: 0.5 A maximum
• Carry Current: 0.5 A maximum
• Maximum Scan Rate: 600 channels/s
• Scanlist Memory: 32,000 steps
• Power Consumption: 1.6 W at 5 V typical
• Minimum Trigger Pulse Width: 150 ns (with digital filtering disabled)
• Programmable Output Trigger Pulse Widths: 1 µs to 62 µs

– Key Features

• Onboard relay counting enables predictive maintenance and lifecycle monitoring
• Hardware trigger support via PXI trigger lines 0–7 for deterministic operation and reduced host processor overhead
• Digital filtering can be disabled to recognize sub-150 ns trigger pulses
• Flexible topology support accommodates single-wire, differential, and interleaved measurement configurations

– Typical Applications

• High-voltage battery and fuel cell stack testing
• Automated signal routing in measurement-intensive test systems
• Applications requiring deterministic switching with minimal latency

– Compatibility & Integration

The PXI-2584 integrates into National Instruments PXI chassis and operates with PXI trigger infrastructure. Part number: 778572-84.