Description
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The NI-9403 is a part of the C Series Digital I/O category, designed to provide flexible input and output capabilities with a focus on digital signals. This module boasts an extensive list of part numbers including 779787-01, 780179-01, and 199027C-03L, ensuring a wide range of compatibility and replacement options. It features a 32 Channel, TTL Digital Input/Output Module with DSUB connectors, making it highly adaptable for various digital signaling tasks.
The configuration of the NI-9403 is live line-to-line, which is designed to handle high-speed digital signals efficiently. It offers transient isolation between I/O channels and the backplane, enhancing the safety and reliability of the module’s operation. The D-SUB front connectors provide a secure and easy connection point for wiring and integration into existing systems.
Compatibility is a strong point for the NI-9403, which is designed to work seamlessly with CompactDAQ and CompactRIO platforms. This module is also compatible with several accessories, including the NI-9923 Screw Terminal Block, a 1 m DSUB cable (part number 780179-01), and a Din-Rail Spring Terminal Block, providing users with a variety of options for connecting and mounting the module.
With an update rate of 7 µs, the NI-9403 ensures rapid response to input and output signals, making it suitable for applications requiring quick data processing and signal manipulation. The module supports a variety of software, including the LabVIEW FPGA Module (for CompactRIO only), LabVIEW professional development system for Windows, and LabVIEW Real-Time module, offering a versatile development environment.
In a CompactDAQ chassis, the NI-9403 operates as a Static Digital I/O Module (software timed), which allows for precise control and timing of digital signals. The input logic level is compatible with 5 V TTL, including Schmitt trigger sources, and the module features input hysteresis to improve signal integrity and noise immunity.
Protection features of the NI-9403 include overvoltage (±30 V), overcurrent, and short-circuit protection, ensuring the module’s longevity and reliability in harsh environments. In the event of an overcurrent condition, the module responds by entering a high impedance state for approximately 280 milliseconds, providing a safeguard against potential damage.
The module weighs
| Specification | Detail |
|---|---|
| Part Numbers | 779787-01, 780179-01, 199027C-03L |
| Category | C Series Digital I/O |
| Model | NI-9403 |
| Description | 32 Channel, TTL Digital Input/Output Module with DSUB |
| Configuration | Live line-to-line |
| Isolation | Transient isolation between I/O channels and backplane |
| Connectors | D-SUB front connectors |
| Compatible Platforms | CompactDAQ, CompactRIO |
| Compatible Accessories | NI-9923 Screw Terminal Block, 1 m DSUB cable (780179-01), Din-Rail Spring Terminal Block |
| Update Rate | 7 µs |
| Software Compatibility | LabVIEW FPGA Module (CompactRIO only), LabVIEW professional development system for windows, LabVIEW Real-Time module |
| Operation Mode in CompactDAQ Chassis | Static Digital I/O Module (software timed) |
| Input Logic Level | 5 V TTL, Schmitt trigger sources |
| Input Hysteresis | Yes |
| Protection | Overvoltage (±30 V), overcurrent, short-circuit |
| Overcurrent Protection Response | High impedance state for ~280 milliseconds |
| Weight | 5.3 oz |
| Operating Temperature Range | -40 °C to 70 °C |
