NI 9401 Measurement System

The NI 9401 Measurement System includes eight bi-directional DIO channels and four counter/timers, communicating with a host PC over USB, Ethernet or 802.11 Wi-Fi.

Measurement Bundle Overview
The hardware for an NI CompactDAQ single measurement bundle consists of a USB, Ethernet, or 802.11 Wi-Fi chassis and one of the over 50 NI C Series measurement-specific modules. These small rugged bundles are ideal for portable or distributed measurements.

Chassis
The chassis controls the timing for the module and handles communication with the PC over the USB, Ethernet, or 802.11 Wi-Fi bus. Additionally, all NI CompactDAQ chassis include four counter/timers that you can access through a digital I/O module like the NI 9401.

Module
The NI 9401 is an 8-channel, 100 ns bidirectional digital input module for any NI CompactDAQ or CompactRIO chassis. You can configure the direction of the digital lines on the NI 9401 for input or output by nibble (4 bits). Thus, you can program this module for three configurations - eight digital inputs, eight digital outputs, or four digital inputs and four digital outputs. With reconfigurable I/O (RIO) technology (CompactRIO only), you can use the NI LabVIEW FPGA Module to program the NI 9401 for implementing custom, high-speed counter/timers, digital communication protocols, pulse generation, and much more. Each channel is compatible with 5 V/TTL signals and features 1,000 Vrms transient isolation between the I/O channels and the backplane.

The NI 9934 (or other 25-pin D-SUB connector) is required for use with the NI 9401 module. The module includes a screw terminal connector with strain relief as well as a D-SUB solder cup backshell for creating custom cable assemblies.

Specifications Documents

• Specifications  (3)

Specifications Summary

Additional Product Information

• Manuals  (14)
• Dimensional Drawings  (4)
• Product Certifications  (4)

Related Information

• Videos: Learn How to Take Your First Measurement With NI CompactDAQ Out of the Box