The NI PXI-2564 is a 16-channel SPST relay module designed for automated switching and signal routing within PXI chassis-based test systems. Each electromechanical relay switches up to 300 VDC / 250 VAC at 2 A maximum, with 4 A carry current capability and 100 mΩ contact resistance. Operating and release times of 5 ms and 3 ms respectively enable fast signal path reconfiguration. The module delivers 1 × 10^7 minimum operations per relay, making it suitable for high-cycle functional testing, device characterization, and complex switching applications in laboratory and production environments.
Technical Specifications
Relay Performance
• 16 SPST channels, electromechanical actuation
• Maximum switching voltage: 300 VDC / 250 VAC
• Maximum switching current: 2 A
• Carry current: 4 A
• Contact resistance: 100 mΩ maximum
• Operate time: 5 ms typical
• Release time: 3 ms typical
• Minimum lifetime: 1 × 10^7 operations
Environmental
• Operating temperature: 0°C to 55°C
• Storage temperature: -40°C to 70°C
• Humidity: 5% to 85% RH, non-condensing
Physical & Interface
• Standard PXI module footprint (130.0 mm H × 160.0 mm L × 24.0 mm W)
• Weight: 120 g
• Screw terminal I/O connections
• Single PXI slot requirement
– Key Features
• High-density 16-channel configuration in single PXI slot
• Channel-to-channel and channel-to-ground isolation via relay architecture
• Low contact resistance minimizes signal loss and heat generation
• Fast switching transitions for dynamic test sequences
• Extended relay lifetime rated for manufacturing test environments
– Typical Applications
• Functional test of multi-channel devices and subsystems
• Signal routing in automated measurement systems
• Power supply and load switching in characterization workflows
• High-reliability switching in production test floors
– Compatibility & Integration
The module integrates into any PXI chassis and operates under Windows environments. Control is via NI-Switch driver software, with API support through LabVIEW, LabWindows/CVI, Measurement Studio, and C/C++ development tools.
