The NI 9974 is a 36-position spring terminal block designed for direct connectivity with National Instruments CompactDAQ and CompactRIO systems. It bridges NI C Series modules featuring 36-position spring terminals to external wiring via a front-mount interface. The module uses a COMBICON male connector for attachment to compatible hardware and provides 36 screw terminal female connections for sensor and I/O signal wiring.
Technical Specifications
• Manufacturer: National Instruments (NI)
• Part Number: 785502-01 / NI-9974
• Positions: 36
• Connector Type: Spring Terminal Block Plug
• Module Interface: COMBICON Male
• Wiring Interface: 36 Screw Terminal Female connections
• Mounting Style: Front Mount
• Contact Material: Copper
• ECCN Classification: EAR99
– Key Features
• COMBICON male connector enables plug-and-play attachment to NI C Series modules
• 36 individual screw terminal connections for tool-free wire termination
• Front-mount design for direct hardware integration
• Copper contact material ensures reliable signal integrity
• Reduces wiring complexity in multi-device configurations
– Typical Applications
• Sensor signal conditioning and distribution in CompactDAQ systems
• I/O signal routing in CompactRIO embedded applications
• Multi-module data acquisition setups requiring centralized terminal connectivity
• Replacement interface for existing spring terminal module connections
– Compatibility & Integration
The NI 9974 integrates with all NI C Series modules featuring 36-position spring terminal connectors, including the NI-9202, NI-9476, and NI-9425. It operates within both CompactDAQ and CompactRIO chassis ecosystems, providing a standardized interface for modular signal connectivity.
