Description
The NI-9402 is a C Series Digital I/O module that comes with part numbers 779987-01 and 196376E-01L. This module is designed to be used with CompactDAQ or CompactRIO hardware platforms, offering high flexibility and compatibility for various applications.
It features 4 Bidirectional Digital Channels that operate at 3.3V TTL logic levels. These channels can handle a maximum update rate of 55 ns, ensuring rapid response times for critical applications. Moreover, each channel is capable of sinking input, sinking output, sourcing input, and sourcing output, providing versatile connectivity options.
The NI-9402 is equipped with BNC front connectors and is designed to use a 50 Ω BNC cable for connection, making it easy to integrate into existing setups. Despite its advanced features, the module is not conformal coated, and it lacks digital I/O isolation, which should be considered when planning its use in certain environments.
Importantly, the module offers I/O protection for each of its 4 channels, ensuring that your equipment remains safe from unexpected electrical issues. The signal types supported by this module are GND and DIO, and its software allows for each DIO channel to be configured for either output or input, adding to the module’s flexibility and ease of use.
| Specification | Detail |
|---|---|
| Part Numbers | 779987-01, 196376E-01L |
| Category | C Series Digital I/O |
| Model | NI-9402 |
| Channels | 4 Bidirectional Digital Channels |
| Logic Levels | 3.3V TTL |
| Maximum Update Rate | 55 ns |
| Connectors | BNC front connectors |
| Conformal Coated | No |
| Compatibility | CompactDAQ or CompactRIO hardware platforms |
| Current Flow Direction | Sinking Input, Sinking Output, Sourcing Input, Sourcing Output |
| I/O Protection | Yes for each of the 4 channels |
| Digital I/O Isolation | No |
| Signal Types | GND and DIO |
| Connector Type | 50 Ω BNC cable |
| Software Configuration | Each DIO channel can be configured for output or input |
Question 1: What platforms is the NI-9402 compatible with?
Answer 1: Compatible with CompactDAQ or CompactRIO.
Question 2: How many digital channels does NI-9402 have?
Answer 2: It has 4 bidirectional digital channels.
Question 3: What logic levels does the NI-9402 operate at?
Answer 3: Operates at 3.3V TTL logic levels.
Question 4: What is the maximum update rate of the NI-9402?
Answer 4: Maximum update rate is 55 ns.
Question 5: Does the NI-9402 feature isolation for its digital I/O?
Answer 5: No, it lacks digital I/O isolation.


