856A2977G01 is a high-reliability aerospace avionics data acquisition unit, engineered to AS9100D quality standards and RTCA DO-160G environmental specifications, tailored for Boeing 777X and Airbus A350 XWB wide-body aircraft’s health monitoring systems during MRO and in-service operations.

Constructed from an EMI-shielded titanium alloy enclosure with an IP68 hermetic seal, it collects and processes data from 48 analog/digital sensors (including pressure, temperature, and vibration) with a 25ms sampling rate and 0.1% measurement precision. The unit features dual redundant data buses (ARINC 429 and Ethernet), a 1TB onboard storage module for flight data logging, and built-in self-test (BIST) capabilities. Weighing 1.1 kg and measuring 135mm×100mm×65mm, it operates at -55°C to 130°C and complies with FAA Part 25 and EASA CS-25 regulations, ensuring real-time aircraft health visibility and predictive maintenance for long-haul fleets.