Description
The NI-9421 comes with various part numbers, including 779002-01, 779136-01, 779136-02, and 783734-01, designed to cater to a wide range of applications within the C Series Digital I/O category. This model is equipped with 8 digital input channels that support 12V and 24V digital I/O logic levels, ensuring compatibility with a variety of digital signals.
One of the key features of the NI-9421 is its sinking inputs, which enhance its flexibility in connecting with different types of external devices. Channel-to-earth ground isolation is provided at 250 Vrms for part numbers 779002-01 and 783734-01, and 60 VDC for part numbers 779136-01 and 779136-02, offering protection against voltage spikes and surges.
Additionally, the 779136-02 model is uniquely conformal coated, providing extra protection against harsh environments and ensuring long-term reliability and performance. When it comes to energy consumption, the NI-9421 is designed to be efficient, with a power consumption of up to 240 mW in active mode and only up to 7 mW in sleep mode, making it an eco-friendly choice for continuous operations.
Despite its robust features, the NI-9421 maintains a lightweight design, weighing just 5.1 oz, and is built to withstand extreme conditions, operating reliably within a temperature range of -40 °C to 70 °C and a storage temperature range of -40 °C to 85 °C. Its operational and storage humidity ranges are 10% RH to 90% RH, and 5% RH to 95% RH, respectively, both non-condensing, ensuring durability in various environmental conditions.
Moreover, the NI-9421 is designed to handle significant vibration levels during operation, withstanding 5 grms (Random), <
| Specification | Detail |
|---|---|
| Part Numbers | 779002-01, 779136-01, 779136-02, 783734-01 |
| Category | C Series Digital I/O |
| Model | NI-9421 |
| Input Channels | 8 digital input channels |
| Logic Levels | 12V, 24 V digital I/O |
| Input Type | Sinking Inputs |
| Ch-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 |
| Power Consumption (Sleep Mode) | Up to 7 mW |
| Weight | 5.1 oz |
| Operating Temperature Range | -40 °C to 70 °C |
| Storage Temperature Range | -40 °C to 85 °C |
| Operating Humidity Range | 10% RH to 90% RH, non-condensing |
| Storage Humidity Range | 5% RH to 95% RH, non-condensing |
| Vibration (Operating) | 5 grms (Random), 5 g (Sinusoidal), 10 to 500 Hz |
Question 1: How many digital input channels does the NI-9421 have?
Answer 1: 8 digital input channels
Question 2: What are the logic levels supported by NI-9421?
Answer 2: 12V and 24V
Question 3: Does the NI-9421 feature earth ground isolation?
Answer 3: Yes, up to 250 Vrms for some models
Question 4: Is the NI-9421 designed for low power consumption?
Answer 4: Yes, up to 240 mW active, up to 7 mW sleep
Question 5: What is the operating temperature range of the NI-9421?
Answer 5: -40 °C to 70 °C
