Description
The product features various Part Numbers including 779002-01, 779136-01, 779136-02, and 783734-01, indicating multiple variants or versions available for specific applications or requirements.
Belonging to the C Series Digital I/O category, the Model NI-9421 is designed to cater to a wide range of digital input/output applications. This model is particularly noted for its 8 digital input channels, making it suitable for capturing or monitoring a variety of digital signals.
The input type for this model is characterized as Sinking Inputs, which is essential for systems requiring a common power source connection. Furthermore, the NI-9421 operates on 12V, 24V digital I/O logic levels, accommodating a broad range of industrial applications.
Channel-Earth Ground Isolation is another critical specification, with values of 250 Vrms for part numbers 779002-01 and 783734-01, and 60 VDC for part numbers 779136-01 and 779136-02. This feature enhances safety and system reliability by isolating the input channels from the earth ground.
Additionally, the part number 779136-02 is uniquely Conformal Coated, offering enhanced protection against moisture, dust, chemicals, and temperature extremes, thus extending the module’s operational life in harsh environments.
When it comes to power, the NI-9421 exhibits an active power consumption of up to 240 mW and a sleep mode power consumption of 7 mW max, highlighting its efficiency and suitability for energy-sensitive projects.
The unit weighs 5.1 oz, making it relatively lightweight and easy to integrate into various systems without significantly affecting the overall weight.
Operating and storage conditions are also critical for ensuring the longevity and reliability of the NI-9421. It operates within a temperature range of -40 °C to 70 °C, and can be stored in temperatures ranging from -40 °C to 85 °C.
| 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 |
| 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) |
| 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 |
| Operating Humidity Range | 10% RH to 90% RH (non-condensing) |
| Storage Humidity Range | 5% RH to 95% RH (non-condensing) |
| Operating Vibration (Random) | 5 grms (10 to 500 Hz) |
| Operating Vibration (Sinusoidal) | 5 g (10 to 500 Hz) |
Question 1: What input type does the NI-9421 support?
Answer 1: Sinking Inputs
Question 2: What are the logic levels of the NI-9421?
Answer 2: 12V, 24V digital I/O logic
Question 3: Which part number is conformal coated?
Answer 3: 779136-02
Question 4: What is the channel-earth ground isolation for 779002-01?
Answer 4: 250 Vrms
Question 5: What is the max sleep mode power consumption?
Answer 5: 7 mW max
