Description
The NI-9421 falls under the C Series Digital I/O category and comes with multiple part numbers, including 779002-01, 779136-01, 779136-02, 783734-01, and a conformal coated version 779136-02. This model is designed to accommodate 8 digital input channels with a sinking input type.
It supports 12V and 24V digital I/O logic levels, providing flexibility for various industrial applications. The NI-9421 features channel-earth ground isolation, with 250 Vrms isolation for part numbers 779002-01 and 783734-01, and 60 VDC isolation for part numbers 779136-01 and 779136-02. This isolation enhances the device’s safety and reliability in electrically noisy environments.
Regarding power consumption, the device operates at up to 240 mW under active conditions and can reduce to up to 7 mW in sleep mode, showcasing its efficiency. Connectivity options are varied, including screw terminals for part number 779002-01, D-Sub connectors for part numbers 779136-01 and 779136-02, and spring terminals for part number 783734-01.
The NI-9421 weighs 5.1 oz and is built 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. Its operating and storage humidity range is from 10% RH to 90%, making it suitable for a variety of environmental conditions. This combination of features ensures that the NI-9421 is a versatile and durable choice for digital I/O applications.
| Feature | Description |
|---|---|
| Part Numbers | 779002-01, 779136-01, 779136-02, 783734-01, 779136-02 (Conformal Coated) |
| Category | C Series Digital I/O |
| Model | NI-9421 |
| Digital Input Channels | 8 |
| Input Type | Sinking |
| 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: up to 240 mW, Sleep mode: up to 7 mW |
| Connectors | Screw Terminals (779002-01), D-Sub (779136-01, 779136-02), Spring Terminal (783734-01) |
| 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) | Operating: 10% RH to 90
Question 1: What type of input does the NI-9421 support? Question 2: What voltage logic levels does the NI-9421 support? Question 3: How many digital input channels does the NI-9421 have? Question 4: What is the isolation voltage for part numbers 779002-01 and 783734-01? Question 5: What connection options does the NI-9421 offer? |
