Description
The NI-9421 falls under the C Series Digital I/O category, known for its robust performance and reliability in various applications. This model boasts a range of part numbers including 779002-01, 779136-01, 779136-02, and 783734-01, catering to a diverse set of needs and specifications.
It is equipped with 8 digital input channels that utilize sinking inputs, ensuring compatibility with a wide range of signal types. The NI-9421 is designed to work with 12V and 24V digital I/O logic levels, making it versatile for different digital signal processing tasks.
The model features channel-earth ground isolation, with specifications varying by part number. The isolation is rated at 250 Vrms for part numbers 779002-01 and 783734-01, and 60 VDC for part numbers 779136-01 and 779136-02, enhancing safety and system reliability.
Notably, the 779136-02 variant is conformal coated, offering additional protection against harsh environments and ensuring long-term durability of the module.
Regarding power efficiency, the NI-9421 has an active power consumption of up to 240 mW and can go as low as 7 mW in sleep mode, demonstrating its energy efficiency.
The unit weighs approximately 5.1 oz and is designed to operate within a wide temperature range of -40 °C to 70 °C, with a storage temperature range extending from -40 °C to 85 °C. This wide temperature range ensures reliability across various environmental conditions.
The module also boasts a robust design capable of withstanding non-condensing humidity ranges from 10% RH to 90% RH during operation and 5% RH to 95% RH during storage. Furthermore, it can handle vibration levels of 5 grms (Random)
| Specification | Detail |
|---|---|
| Category | C Series Digital I/O |
| Model | NI-9421 |
| Part Numbers | 779002-01, 779136-01, 779136-02, 783734-01 |
| Input Channels | 8 digital input channels |
| Input Type | Sinking Inputs |
| Logic Levels | 12V, 24 V digital I/O |
| Channel-Earth Ground Isolation | 250 Vrms (779002-01, 783734-01), 60 VDC (779136-01, 779136-02) |
| Conformal Coated | Yes (779136-02 only) |
| Power Consumption | Active: up to 240 mW, Sleep mode: 7 mW max |
| Weight | 5.1 oz |
| Operating Temperature Range | -40 °C to 70 °C |
| Storage Temperature Range | -40 °C to 85 °C |
| Humidity Range (Operating and Storage) | Non-condensing, 10% RH to 90% RH (Operating), 5% RH to 95% RH (Storage) |
| Vibration (Operating) | 5 grms (Random), 5 g (Sinusoidal), 10 to 500 Hz |
Question 1: What logic levels does the NI-9421 support?
Answer 1: 12V and 24V
Question 2: How many input channels does the NI-9421 have?
Answer 2: 8 sinking inputs
Question 3: What isolation rating do part numbers 779002-01 and 783734-01 have?
Answer 3: 250 Vrms
Question 4: Which NI-9421 part number is conformal coated?
Answer 4: 779136-02
Question 5: What is the power consumption of the NI-9421 in sleep mode?
Answer 5: 7 mW
