The NI AI-48/DIO-24 is an adapter board for National Instruments SCXI modular DAQ systems, providing expanded analog input and digital I/O connectivity. It enables integration of signal conditioning and I/O resources in close proximity to sensors and transducers, supporting precision measurement and control applications across compatible NI platforms.
Technical Specifications
Digital I/O
• 24 digital I/O lines organized into three 8-bit ports (Port A, Port B, Port C)
• Port C configurable as two 4-bit nibbles
• Each port independently software-configurable for input or output
• TTL-compatible logic levels
• Digital outputs: 2.5 mA source and sink capability
• Software-configurable pull-up or pull-down resistors (default pull-up configuration)
• 82C55 Programmable Peripheral Interface emulation
Connectivity
• 50-pin male breakout connector for external device attachment
• SCXI chassis integration interface
Analog Input
• AI-48 designation indicates analog input functionality
– Key Features
• Modular design for SCXI platform integration
• Independent per-port I/O configuration via software control
• Configurable pull-up/pull-down resistor settings
• Standard 50-pin connector breakout
• Compatible with National Instruments SCXI modules
– Typical Applications
• Multi-channel sensor data acquisition
• Mixed analog and digital signal conditioning
• Distributed I/O measurement systems
• Industrial control and monitoring
• Test and measurement instrumentation
– Compatibility & Integration
Designed specifically for National Instruments SCXI chassis and DAQ systems. Compatible with various SCXI modules and integrates directly into modular NI acquisition platforms.
