The National Instruments PXI-2564 is a high-density PXI relay module featuring 16 independent SPST non-latching electromechanical armature relays. It delivers low on-resistance switching with gold-plated silver cadmium oxide contacts and mechanical relay life of 2 × 10⁷ cycles. The module handles up to 5 A per channel with maximum switching voltages of 150 V DC/AC (channel-to-channel) and 150 V DC/AC CAT II (channel-to-ground). Peak switching power reaches 750 VA AC or 150 W DC at 30 V. All 16 channels can simultaneously carry maximum current at ≤55 °C. The PXI-2564 operates at 10 MHz switch bandwidth with a 45 cycles/second scan rate and integrates with National Instruments’ LabVIEW and NI-SWITCH software environments via 37-pin D-SUB connector on a single PXI/cPCI slot.
Technical Specifications
• Relay Configuration: 16 SPST Form A, non-latching
• Contact Material: Gold-plated silver cadmium oxide
• DC Path Resistance: <100 mΩ initial, ≥250 mΩ end-of-life
• Maximum Switching Voltage: 150 V DC, 150 V AC (channel-to-channel and channel-to-ground CAT II)
• Maximum Switching Current: 5 A per channel
• Maximum Switching Power: 750 VA AC; 150 W DC at 30 V, 30 W DC at 150 V
• Minimum Switch Load: 10 mA at 5 V DC
• Switch Bandwidth: 10 MHz
• Scan Rate: 45 cycles/second
• Relay Operate Time: ≤10.4 ms
• Mechanical Life: 2 × 10⁷ cycles
• Electrical Life (Full Load): 1 × 10⁵ cycles
• Operating Temperature: 0 °C to 55 °C
• Storage Temperature: -20 °C to 70 °C
• Dimensions: 3U, single slot, 21.6 × 2.0 × 13.0 cm
• Power Requirement: 5 W at 5 V, 2.5 W at 3.3 V
– Key Features
• 16 independent relay channels with gold-plated contact material
• Low on-resistance and thermal offset characteristics
• PXI trigger input support (lines 0–7) with programmable output pulse width (1 µs to 62 µs)
• Minimum input trigger pulse width 150 ns
• 37-pin D-SUB male connector for signal routing
– Typical Applications
• Automated test systems requiring high-channel-count switching
• Medium-to-high power signal routing and load switching
• Industrial, automotive, and military test environments
– Compatibility & Integration
Fully software programmable with National Instruments LabVIEW and NI-SWITCH driver software. Mounts directly into PXI/cPCI chassis.
