Which system is included in Avionics Bus 2 of the Cessna 172?

In the Cessna 172 equipped with the Garmin G1000 avionics system, the Multi-Function Display (MFD) is integrated within Avionics Bus 2. The MFD provides pilots with critical flight information, navigation data, and situational awareness through a graphical interface, consolidating various functions such as flight planning, weather information, and engine performance data.

Avionics Bus 2 is designed to power essential avionics equipment, and the MFD is a key component among these, ensuring that the pilot has access to a wide array of necessary information while flying. The system's redundancy and power distribution design allows for the continued operation of critical displays like the MFD in the event of failure of other systems.

Other systems mentioned, such as the Attitude and Heading Reference System (AHRS), backup battery, and Primary Flight Display (PFD), serve different functions and are typically powered by other parts of the avionics architecture, which helps to delineate the specific role of each bus in the overall avionics configuration.