The NI 9421 is an 8-channel 24 V sinking digital input module for CompactRIO and CompactDAQ systems.
It provides reliable digital signal acquisition for industrial and automation applications.
This unit is used, tested, and in excellent working condition.
Manufacturer Information
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Name: National Instruments Corporation
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Address: 11500 North Mopac Expressway, Austin, TX 78759-3504, USA
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Phone: +1 512 683 0100
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Email: info@ni.com
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Website: https://www.ni.com
Technical Specifications
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Model: NI 9421
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Type: 8-Channel 24 V Sinking Digital Input
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Input Voltage: 30 V Ch-to-COM (max.)
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Isolation: 250 Vrms CAT II (Ch-to-Earth)
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Operating Temperature: –40 °C to +70 °C
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Connector: D-Sub 15-Pin (front)
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Certifications: CE, UL, Lloyd’s Register, ATEX II 3G Ex nC IIC T4
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Condition: used, tested, cleaned
Key Features
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8 isolated 24 V digital inputs
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High noise immunity for industrial environments
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Galvanic isolation between channels and earth
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Rugged metal housing
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ATEX Zone 2 certified
Applications
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Industrial automation and process monitoring
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Machine control and signal logging
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Test and measurement systems
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R&D and lab automation
Notes
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Condition: used, tested, functional
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Scope of delivery: 1 × NI 9421 module
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Shipping: securely packed, insured, worldwide
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Installation: qualified personnel only
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