The NI IMAQ PCI-1424 is a PCI-based image acquisition module for high-speed digital image capture in industrial, scientific, and machine vision systems. It delivers up to 200 MB/s data throughput into onboard memory and supports LVDS and RS422/TTL signaling for flexible camera interfaces. The module provides programmable lookup tables for real-time data mapping and contrast enhancement, adjustable region-of-interest windowing to reduce PC memory load, and dual clock outputs for external camera synchronization.
Technical Specifications
Data Acquisition
• Maximum clock speed: 50 MHz
• Data capture rate: Up to 200 MB/s into onboard memory
• Data formats: Up to 32 bits differential or TTL video data; four 8-bit channels; two 10-, 12-, 14-, or 16-bit channels; one 24- or 32-bit channel
• Onboard memory: 16 MB base, expandable to 64 MB or 128 MB via SO-DIMM modules
• Dual clock outputs: 500 kHz to 50 MHz for digital camera external clock requirements
Camera Interface & Control
• Connector: 100-pin SCSI-type
• Signaling: LVDS/TTL (EIA-644) or RS422/TTL
• Control lines: Four general-purpose lines for timing signals; up to four digital enable signals (frame, line, even, odd)
• Serial interface: RS-232 for camera control and configuration
• External trigger I/O: Four lines, 0 V to 5 V TTL
Image Processing
• Region of Interest: Adjustable onboard window to minimize host memory transfer
• Lookup tables: Four 8-bit LUTs or two 10- to 16-bit LUTs for real-time mapping, contrast enhancement, data inversion, and gamma correction
Synchronization
• External trigger support: Rising or falling edge acquisition start
• RTSI bus: Integration with other National Instruments DAQ and IMAQ devices
– Key Features
• High-speed PCI interface for PC-based integration
• Flexible camera signaling: LVDS or RS422/TTL options
• Expandable onboard memory reduces host system bandwidth demands
• Programmable lookup tables enable real-time nonlinear transfer functions
• FIFO buffering mode for images exceeding onboard RAM capacity
– Typical Applications
Industrial inspection, scientific imaging, digital camera systems requiring external clock generation, and synchronized multi-device DAQ environments.
– Compatibility & Integration
Compatible with PCI bus systems. RTSI bus support enables timing synchronization across National Instruments hardware platforms.
