The NI PXIe-6674 is a timing and synchronization module for PXI Express systems that generates, distributes, and synchronizes timing signals across single and multiple chassis. It enables high-accuracy correlated measurements and event-based triggering in distributed test and measurement environments, making it essential for aerospace, defense, and automotive applications requiring precise temporal coordination.
Technical Specifications
Timing and Synchronization
• Reference clock input/output supporting 100 MHz
• PXIe_CLK100 backplane reference clock
• Star trigger and star clock distribution topology
• Dedicated synchronization input/output for external signal integration
• Software-configurable clock source selection and trigger routing
• Programmable delay lines with sub-nanosecond resolution
Signal Routing and Generation
• 12 independently configurable clock outputs
• 12 bidirectional trigger input/output lines
• Software-timed and hardware-timed event generation
Form Factor and Integration
• Standard PXIe hybrid-slot module (1-slot)
• PCIe connectivity for high bandwidth and low latency
• Multi-chassis synchronization through dedicated sync interfaces
• Remote system timing support for geographically separated PXIe systems
• High-density connectors for clock, trigger, and synchronization signals
Electrical Characteristics
• Standard logic level compatibility for trigger and clock signals
• Power consumption within standard PXIe chassis envelopes
– Key Features
• Sub-nanosecond timing resolution via programmable delay lines
• Star topology distribution minimizes skew across multiple devices
• Twelve independent clock outputs enable flexible signal distribution
• Twelve bidirectional trigger lines support complex event sequencing
• Multi-chassis synchronization facilitates distributed measurement systems
– Typical Applications
• Aerospace and defense test systems requiring synchronized measurements
• Automotive functional safety validation across multiple test stations
• Distributed data acquisition with correlated multi-chassis timing
• Complex trigger and stimulus coordination in production test environments
– Compatibility & Integration
The module operates in PXIe hybrid slots and integrates with external timing sources through dedicated synchronization interfaces. Multi-chassis systems synchronize via dedicated protocols, enabling remote timing coordination across geographically distributed PXIe installations.
