The NI IMAQ PCI-1422 is a PCI-based image acquisition module for capturing digital imagery from RS-422 cameras. It delivers sustained data transfer to PC memory at up to 100 MB/s and onboard acquisition rates reaching 80 MB/s, supported by 16 MB of SDRAM buffering. The module processes pixel data up to 16 bits per channel and accommodates two simultaneous 8-bit channels or a single 10-, 12-, 14-, or 16-bit channel. A 40 MHz pixel clock and dual clock outputs (500 kHz to 40 MHz) enable flexible camera synchronization. On-board lookup tables provide real-time image processing including contrast enhancement and data inversion. The 100-pin SCSI connector integrates camera control via RS-232 serial lines, four TTL/differential digital control lines, and four external TTL triggers with programmable polarity. RTSI bus connectivity allows hardware synchronization across multiple National Instruments DAQ and IMAQ devices. Industrial and scientific imaging applications benefit from sustained high-throughput acquisition and hardware-level triggering precision.
Technical Specifications
• Camera Interface: RS-422 digital signaling
• Data Acquisition: Up to 16 bits per pixel; dual 8-bit channels or single 10/12/14/16-bit channel
• Acquisition Rate: 80 MB/s into onboard memory
• PC Memory Transfer: 100 MB/s sustained
• Pixel Clock: Up to 40 MHz
• Onboard Memory: 16 MB SDRAM
• Lookup Tables: One 64 KB × 16-bit LUT; configurable as two 256 B × 8-bit LUTs
• Clock Outputs: Two outputs, 500 kHz to 40 MHz
• Serial Control: RS-232 lines on 100-pin connector
• Digital Control Lines: Four TTL or differential lines; configurable as I/O or triggers
• External Triggers: Four TTL inputs with programmable rising/falling edge detection
• Dimensions: 10.7 cm × 17.5 cm
• Weight: 0.127 kg
– Key Features
• Real-time lookup table operations for data inversion and contrast enhancement
• RTSI bus synchronization with other NI hardware
• Onboard buffering ensures sustained real-time throughput
• Dual clock outputs support external camera timing requirements
– Typical Applications
• Industrial vision and inspection systems
• Scientific imaging requiring high-speed digital capture
• Multi-camera synchronization via RTSI
• RS-422 camera integration in DAQ systems
– Compatibility & Integration
Operates under Windows Vista with NI-IMAQ driver software (included). Integrates with LabVIEW, LabWindows/CVI, Measurement Studio, NI Vision Builder for Automated Inspection, and the NI Vision Development Module.
