Description
The NI-9421 is a robust module categorized under the C Series Digital I/O lineup, embodying a versatile approach to digital input interfacing. It is designed with 8 digital input channels that support sinking inputs, showcasing its adaptability to various industrial environments.
One of the remarkable features of the NI-9421 is its compatibility with 12V and 24V digital I/O logic levels, making it a versatile choice for a wide range of applications. The module is available under several part numbers, including 779002-01, 779136-01, 779136-02, 783734-01, and a conformal coated variant 779136-02, offering options tailored to different operational demands and environmental conditions.
Channel-Earth ground isolation is another critical specification of the NI-9421, 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 isolation ensures that signals are accurately and safely transmitted without interference.
The module supports various connector types, including Screw Terminal, D-Sub, and Spring Terminal, corresponding to part numbers 779002-01, 779136-01, 779136-02, and 783734-01 respectively. This flexibility facilitates easy integration into existing systems.
In terms of power efficiency, the NI-9421 has a power consumption of up to 240 mW during active operation and drops to a mere 7 mW in sleep mode, highlighting its energy-saving capabilities.
The module is lightweight, weighing in at 5.1 oz, and it is designed to withstand harsh conditions. It operates within a temperature range of -40 °C to 70 °C and can be stored at temperatures ranging from -40 °C to 85 °C. The operating and storage humidity range of 10% RH
| 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, Sinking Inputs |
| Logic Levels Compatibility | 12V, 24 V digital I/O |
| Channel-Earth Ground Isolation | 250 Vrms (779002-01, 783734-01), 60 VDC (779136-01, 779136-02) |
| Connector Types | Screw Terminal (779002-01), D-Sub (779136-01, 779136-02), Spring Terminal (783734-01) |
| Power Consumption | Up to 240 mW (active), 7 mW (sleep mode) |
| Weight | 5.1 oz |
| Operating Temperature Range | -40 °C to 70 °C |
| Storage Temperature Range | -40 °C to 85 °C |
| Operating and Storage Humidity Range | 10% RH to 90% RH (operating), 5% RH to 95% RH (storage) |
| Vibration | 5 grms (random), 5 g (sinusoidal), 10 to 500 Hz frequency range |
Question 1: How many digital input channels does the NI-9421 have?
Answer 1: 8 digital input channels
Question 2: What voltage logic levels does the NI-9421 support?
Answer 2: 12V and 24V logic levels
Question 3: What connector types does the NI-9421 support?
Answer 3: Screw Terminal, D-Sub, Spring Terminal
Question 4: What is the power consumption of the NI-9421 in sleep mode?
Answer 4: 7 mW
Question 5: What is the operating temperature range of the NI-9421?
Answer 5: -40 °C to 70 °C
