Description
The NI-9401 is a versatile C Series Digital I/O module that features 8 bidirectional channels, which can be configured as 8 digital inputs, 8 digital outputs, or a combination of 4 digital inputs and 4 digital outputs. This flexibility makes it suitable for a wide range of applications. The module operates with 5 V/TTL compatibility, ensuring it can interface with various digital logic levels seamlessly.
It boasts a rapid maximum I/O propagation delay of 100 ns, allowing for high-speed data transfer and processing. This characteristic is particularly beneficial in time-sensitive applications where rapid response times are critical.
The NI-9401 is available in two part numbers: 779351-01 and 782401-01. The latter is conformal coated, offering additional protection against harsh environments, making it an excellent choice for applications exposed to moisture or chemical contaminants.
Designed for durability and reliability, the module comes equipped with a D-SUB front connector for easy and secure connection to other devices. It has a light weight of 5.1 oz, making it easy to integrate into various systems without adding significant bulk.
The operating temperature range of -40 °C to 70 °C ensures that the NI-9401 performs reliably in extreme conditions, whether in cold or hot environments. This wide temperature range enhances the module’s versatility, making it suitable for outdoor applications or industrial settings with fluctuating temperatures.
| Specification | Details |
|---|---|
| Part Numbers | 779351-01, 782401-01 |
| Category | C Series Digital I/O |
| Model | NI-9401 |
| Description | 8-Channel, 100 ns, TTL Digital Input/Output Module |
| Configurations | 8 digital inputs, 8 digital outputs, or 4 digital inputs and 4 digital outputs |
| Compatibility | 5 V/TTL |
| Channels | 8 Bidirectional |
| Maximum I/O Propagation Delay | 100 ns |
| Conformal Coated | Yes (Part Number 782401-01) |
| Front Connector | D-SUB |
| Weight | 5.1 oz |
| Operating Temperature Range | -40 °C to 70 °C |
Question 1: What is the I/O speed of NI-9401?
Answer 1: Maximum I/O propagation delay is 100 ns.
Question 2: How many channels does NI-9401 have?
Answer 2: It has 8 bidirectional channels.
Question 3: Is the NI-9401’s input/output voltage TTL compatible?
Answer 3: Yes, it’s 5 V/TTL compatible.
Question 4: What kind of connector does NI-9401 use?
Answer 4: It uses a D-SUB front connector.
Question 5: Does NI-9401 have a conformal coated option?
Answer 5: Yes, part number 782401-01 is conformal coated.




