Description
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The NI-9421 is a module from the C Series Digital I/O category, designed to provide efficient digital input solutions. This module has 8 digital input channels that are capable of sinking inputs, making it versatile for various applications. It supports 12V and 24V digital I/O logic levels, ensuring compatibility with a wide range of digital signals.
The NI-9421 is available in multiple part numbers including 779002-01, 779136-01, 779136-02, and 783734-01, with the 779136-02 model also available in a conformal coated variant for added protection against environmental factors. This module is distinguished by its channel-earth ground isolation, which is rated at 250 Vrms for part numbers 779002-01 and 783734-01, and 60 VDC for part numbers 779136-01 and 779136-02, providing robust protection against electrical noise and surges.
In terms of power efficiency, the NI-9421 operates with a power consumption of 240 mW during active use and only 7 mW in sleep mode, highlighting its energy efficiency. Furthermore, it is designed to operate and be stored in extreme environmental conditions. The operating temperature range is from -40 °C to 70 °C, and the storage temperature range extends from -40 °C to 85 °C. Humidity resistance is also significant, with an operating range from 10% RH to 90% RH, and a storage range from 5% RH to 95% RH, both in non-condensing conditions.
The NI-9421 is engineered to withstand harsh conditions, with a vibration tolerance of 5 grms Random and 5 g Sinusoidal across a frequency range of 10 to 500 Hz, ensuring reliability and durability in challenging environments. This makes the module an ideal choice for a wide array of industrial and research applications requiring high reliability and precision.
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| Specification | Detail |
|---|---|
| Part Numbers | 779002-01, 779136-01, 779136-02, 783734-01, 779136-02 (Conformal Coated) |
| Category | C Series Digital I/O |
| Model | NI-9421 |
| Input Channels | 8 digital input channels |
| Input Type | Sinking Inputs |
| Logic Levels | 12V, 24V digital I/O |
| Channel-Earth Ground Isolation | 250 Vrms (779002-01, 783734-01), 60 VDC (779136-01, 779136-02) |
| Power Consumption | Active: 240 mW, Sleep mode: 7 mW |
| Operating Temperature Range | -40 °C to 70 °C |
| Storage Temperature Range | -40 °C to 85 °C |
| Operating and Storage Humidity Range | Operating: 10% RH to 90% RH, Storage: 5% RH to 95% RH (non-condensing) |
| Vibration | Operating: 5 grms Random, 5 g Sinusoidal (10 to 500 Hz) |
| Weight | Question 1: What are the logic levels supported by NI-9421? Answer 1: 12V and 24V Question 2: How many digital input channels does the NI-9421 have? Question 3: What is the operating temperature range of the NI-9421? Question 4: What are some part numbers for the NI-9421? Question 5: What is the power consumption of the NI-9421 in sleep mode? |
