The NI PCI-8254R is an IEEE 1394a interface card with integrated reconfigurable digital I/O, designed for high-performance machine vision and industrial control applications. It combines a dual-port IEEE 1394a host adapter with 29 configurable digital I/O lines, enabling synchronized multi-camera acquisition and real-time trigger control without external interface hardware. The card’s reconfigurable logic supports custom implementations via LabVIEW FPGA, making it suitable for packaging inspection, assembly verification, and robotic control systems.
Technical Specifications
IEEE 1394 Interface
• Two direct-connect IEEE 1394a ports with 400 Mb/s shared bandwidth
• Supports up to 16 cameras per board with hub expansion; direct connection for 2 cameras
• DCAM (IIDC) compliant camera compatibility
Digital I/O
• 29 total digital I/O lines: 15 inputs and 14 outputs
• Input lines: 13 isolated 24 V lines plus 2 dedicated TTL lines
• Output lines: 4 isolated 24 V lines plus 10 dedicated TTL lines
• 44-pin D-Sub connector for I/O access
• Quadrature encoder inputs and general-purpose digital I/O for actuator and PLC communication
Power Requirements
• ATX power connector available from host supply
• PCI bus camera power limited to 5 W (shared across both ports) when ATX not used
• Isolated output current maximum: 50 mA at 5 V
• Combined Viso pin current limit: 500 mA
• External power supply compatible up to 30 VDC (e.g., NI 1450: 24 V, 50 W)
Physical
• Dimensions: 10.7 cm × 17.5 cm (4.2 in. × 6.9 in.)
• Weight: 0.25 lb
– Key Features
• Reconfigurable I/O technology via LabVIEW FPGA Module for custom hardware tailoring
• Mixed-voltage I/O: 24 V industrial lines paired with TTL logic lines
• Isolated output capability with external power supply support
• Compact PCI form factor
– Typical Applications
• Multi-camera machine vision systems
• Packaging and assembly inspection
• Industrial process control and synchronization
• Robot control and feedback integration
– Compatibility & Integration
• Windows 2000/XP operating system
• NI Vision Acquisition Software 8.0 or later
• IEEE 1394a cable connection
• Optional I/O terminal blocks and prototyping accessories available
