National Instruments Corporation NI 9421 with DSub 8-Ch 24 V, 100 us, Sinking DI Module,CC
- 8-channel, 100 s digital input
- 24 V logic, sinking digital input
- Compatible with NI CompactDAQ counters
- 60 VDC, CAT I (D-SUB) or 250 Vrms, CAT II (screw terminal) isolation
- 25-pin D-SUB or 10-position screw-terminal connectors available
- -40 C to 70 C operating, 5 g vibration, 50 g shock
- Configure Complete CompactRIO or NI CompactDAQ System
- View Data Sheet
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The NI-9421 CC (part number 779136-02) is a conformal coated, 8-channel sinking digital input module designed by National Instruments for use with CompactDAQ and CompactRIO systems. It features a DSUB connector and supports 24 V logic levels, allowing for reliable detection of digital signals in industrial environments. The conformal coating provides enhanced protection against moisture, dust, and other contaminants, making it suitable for harsh operating conditions. The module offers channel-to-channel isolation and is engineered for high-speed digital input applications, ensuring accurate and robust data acquisition in automation and monitoring systems.