background image

Before You Begin

Read the NI-9401 Safety, Environmental, and Regulatory Information and

complete the software and hardware installation procedures in your chassis

documentation.

Safety Guidelines

Caution

 Observe all instructions and cautions in the user documentation.

Using the product in a manner not specified can damage the product and

compromise the built-in safety protection.

Attention

 Suivez toutes les instructions et respectez toutes les mises

en garde de la documentation d'utilisation. L'utilisation du produit de

toute autre façon que celle spécifiée risque de l'endommager et de

compromettre la protection de sécurité intégrée.

Safety Voltages

Connect only voltages that are within the following limits:

Maximum voltage

[1]

Channel-to-COM

±30 V maximum on one channel at a time, Measurement Category I

Isolation voltages

Channel-to-channel

None

Channel-to-earth ground

Continuous

60 V DC, Measurement Category I

Withstand

1,000 V RMS, verified by a 5 s dielectric withstand test

© National Instruments

3

NI-9401 Getting Started

Summary of Contents for NI 9401

Page 1: ...NI 9401 Getting Started 2022 07 06...

Page 2: ...4 Electromagnetic Compatibility Guidelines 5 Preparing the Environment 6 Connecting the NI 9401 7 NI 9401 Signals 7 Ports 8 Connecting a Serial Peripheral Interface Device 8 Connecting Digital Devices...

Page 3: ...ctions et respectez toutes les mises en garde de la documentation d utilisation L utilisation du produit de toute autre fa on que celle sp cifi e risque de l endommager et de compromettre la protectio...

Page 4: ...or the area is known to be nonhazardous Caution Do not remove modules unless power has been switched off or the area is known to be nonhazardous Caution Substitution of components may impair suitabil...

Page 5: ...e enclosure must have a door or cover accessible only by the use of a tool Electromagnetic Compatibility Guidelines This product was tested and complies with the regulatory requirements and limits for...

Page 6: ...ss Figure 1 Installing a Ferrite Bead 1 2 1 Installing a ferrite bead on a 25 pin DSUB cable 2 Installing a ferrite bead on the cable of the terminal block Special Conditions for Marine Applications S...

Page 7: ...the device datasheet on ni com manuals for complete specifications Connecting the NI 9401 The NI 9401 provides connections for 8 digital input output channels Figure 2 NI 9401 Pinout COM NC COM COM NC...

Page 8: ...can connect a Serial Peripheral Interface SPI device to the NI 9401 Figure 3 Connecting an SPI Device to the NI 9401 Connecting Digital Devices You can connect several types of digital devices to the...

Page 9: ...plication development self help such as tutorials and examples Visit ni com services to learn about NI service offerings such as calibration options repair and replacement Visit ni com register to reg...

Reviews: