The National Instruments 781156-01 CompactDAQ Chassis, part of the cDAQ-9178 model series, serves as a reliable platform for small-scale sensor measurement systems. Featuring a USB 2.0 Hi-Speed interface, this chassis ensures straightforward integration of sensors and electrical measurements, delivering a plug-and-play experience for users. Acting as the central hub, it facilitates efficient data transfer, synchronization, and timing between external hosts and various C Series I/O modules. Equipped with eight slots, the chassis provides ample space for module installation, offering versatile configurations tailored to specific measurement needs. It supports a wide range of data capture methods, including counter/timer measurements, digital I/O, and analog I/O, enhancing its applicability across different use cases.

The 781156-01 chassis delivers 50 ppm timing precision and 12.5 ns timing resolution for analog inputs, with the maximum sample rate determined by the installed C Series I/O modules. It supports hardware-timed tasks and onboard regeneration for up to 16 channels, achieving a maximum analog output update rate of 1.6 MS/s. Additionally, it accommodates non-regeneration and non-hardware-timed tasks, further expanding its operational flexibility. Included are four 32-bit general-purpose counters/timers, enabling various applications like frequency division and pulse generation. The chassis is designed to ensure precise synchronization and triggering, featuring a variety of internal and external base clocks along with adaptable input and digital trigger routing options. It supports high-performance data streaming across seven data types, including digital input, digital output, counter/timer input, counter/timer output, and NI-XNET, thus enhancing interoperability and efficiency when interfacing with external devices and software tools.