CMC Switching and ARINC 429 Link

Key Differences between Type 3 and Other Systems

• Type 3 systems are distinguished by their specific operational limitations compared to Type 1 and Type 2 systems.

Central Maintenance Computers (CMCs) Functions

• CMCs monitor and diagnose aircraft systems, ensuring optimal operation and safety.
• They store crucial data about aircraft systems in non-volatile memory for reliability.

Guided Tests in the MCDU

• Guided tests assist operators in troubleshooting and maintaining aircraft systems effectively.

CMC Data Storage

• CMCs utilize non-volatile memory to retain aircraft systems data, ensuring preservation during power loss.

Multifunction Control Display Unit (MCDU) Line Keys

• Line keys allow operators to interact with various operations within the MCDU, facilitating system management.

Accessing CMC Functions

• Operators can access CMC functions through the MCDU interface, simplifying control and monitoring.

Consequences of Class 2 Failures

• A Class 2 failure can affect flight operations but typically does not compromise safety or necessitate immediate action.

Class 3 Failures Availability

• Class 3 failures are specific to maintenance scenarios and typically not presented during regular flight operations.

Primary Function of Type 1 System Computers

• Type 1 systems are responsible for critical flight control and navigation tasks.

Type 2 System Computers Output Connection

• Type 2 system computers connect to multiple data buses for transmitting vital information.

Type 1 System Computers Connectivity to CMCs

• They connect to CMCs through dedicated communication links for data exchange.

ECAM STATUS Page Purpose

• The ECAM STATUS page provides real-time information regarding the current health and status of aircraft systems.

ARINC 429 Link Functionality

• The primary function is to ensure reliable data exchange between CMC 1 and CMC 2, enhancing redundancy and system integrity.

Real-Time Warnings on ECAM and MCDU

• Failures such as engine warnings and system malfunctions are displayed in real-time for immediate awareness.

CMCs Non-Volatile Memory System

• Recording failure information in a non-volatile memory system ensures that critical data is retrievable even after power loss.

Warnings on ECAM Display

• Warnings displayed remain active until explicitly canceled, ensuring continuous alertness to potential issues.

Flight Warning Computers Function

• They analyze aircraft data to detect and warn of anomalies affecting flight safety and performance.

Primary Function of ECAM Display

• The ECAM displays operational data and alerts, aiding pilots in monitoring aircraft performance.

Class 1 EFB System Characteristic

• Features primarily support flight operations without direct administrative control for use.

Administrative Control Requirement for EFB Systems

• Class 2 EFB systems require administrative control before they can be utilized in operational scenarios.

Class 1 vs. Class 2 EFB Systems

• Class 1 systems do not require pre-approval for use, while Class 2 systems mandate specific administrative oversight.

Primary Use of Electronic Flight Bag (EFB) System

• EFB systems are mainly employed to manage flight-related documents and improve cockpit efficiency.

Alternative Term for Class 1 EFB

• Some refer to Class 1 EFB systems as Portable Electronic Flight Bags (PEFB).

Document Describing EFB Classes

• The guidelines that outline EFB classes are typically detailed in aviation regulatory documentation.

Ground Support Personnel Interface

• Remote access to the aircraft's server enables ground support personnel to perform diagnostics and updates.

LoadStar Software Function

• LoadStar software is responsible for loading and managing flight data efficiently across various systems.

On-Board Data Loaders on Boeing Aircraft

• Latest Boeing aircraft utilize Dedicated Data Loaders for crucial data management tasks.

Dual Operating System Software

• PMAT/NT supports two different operating systems for versatile operational capabilities.

Connections for Portable Data Loaders (PDL)

• PDLs connect to aircraft systems through ARINC data buses, facilitating data transfer.

On-Board Data Loaders on Airbus Aircraft

• Airbus employs specific data loading systems designed for their aircraft models to streamline data management.

This quiz covers the interface between CMC 1 and CMC 2 via ARINC 429 link, enabling data exchange and master-slave selection. It's relevant to aircraft systems, particularly Flight Warning Computers and ECAM Display.