Aircraft Systems: ATSU and DCDU

What is the primary function of the Multipurpose Disk Drive Unit (MDDU)?

To display information to the flight crew
To store data for the ATSU
To upload software to the ATSU (correct)
To transmit data to the ATC ground centre

What is the purpose of the ATSU?

To communicate with the ATC ground centre
To test the DCDU
To control the aeroplane's engines
To process and organize data for display on the DCDU (correct)

What is the maximum number of messages that can be stored in the DCDU message file?

50
29 (correct)
10
20

What happens when an urgent or distress message is received?

It is automatically displayed on the DCDU (B) Signup and view all the answers

What is the function of the ARINC 429 high-speed bus?

To transmit data from the ATSU to the DCDU (D) Signup and view all the answers

What is displayed on the DCDU when the message file reaches its capacity?

The amber message 'file full' (C) Signup and view all the answers

What information does the ATIMS system send to the CMCs?

The part number and software number of each component (B) Signup and view all the answers

What is the purpose of acquiring A/C configuration parameters from the CMC?

To determine if any optional systems are installed on the aircraft (A) Signup and view all the answers

What is the role of the ATSU in exchanging data messages for AOC remote application?

It acts as a router (D) Signup and view all the answers

What is the function of the MCDUs in the ATIMS system?

To provide aircrew access to ATC system pages (D) Signup and view all the answers

How many FMCs are used in the ATIMS system?

Two (C) Signup and view all the answers

What information is acquired by the FMGEC from the ATSU?

Origin/destination airports, flight numbers, and fuel quantity (C) Signup and view all the answers

What is the function of the Landing Gear Control Interface Unit (LGCIU) in relation to the ATSU?

To determine whether the aircraft is on the ground or in flight (A) Signup and view all the answers

What is the purpose of the ATSU in relation to the cabin terminals?

To act as an ACARS router (D) Signup and view all the answers

What is the main concept that the ATIMS system is based on?

Communication Navigation and Surveillance (CNS) (C) Signup and view all the answers

What type of messages are hosted in the cabin terminals?

ARINC 619 (C) Signup and view all the answers

What is the function of the ATSU in relation to the printer?

To acquire printer status (C) Signup and view all the answers

What is the function of the ATIMS system in relation to air traffic and airline operations?

To provide air traffic control and airline operational control (B) Signup and view all the answers

What is the primary purpose of FANS in air traffic control?

To improve ATC routings and reduce separations between aircraft (C) Signup and view all the answers

What is the frequency of automatic surveillance reports transmitted by FANS-equipped aircraft?

At least every one to five minutes (C) Signup and view all the answers

What is the primary source of position information for FANS-equipped aircraft?

The Global Positioning System (GPS) (A) Signup and view all the answers

What is a benefit of digital data communication between flight crews and air traffic controllers?

It reduces the possibility of error and allows for more efficient routings (D) Signup and view all the answers

What is a factor considered by FANS in improving ATC routings?

Both overall traffic and ATC restrictions or constraints (D) Signup and view all the answers

What type of information is displayed on the in-flight entertainment system?

Flight status and aircraft position (A) Signup and view all the answers

Which system provides real-time video and audio details of the countries along the flight path?

PVIS (A) Signup and view all the answers

What type of data is uploaded or downloaded through the Multi-purpose Disk Drive Unit (MDDU)?

Flight data (A) Signup and view all the answers

Which system interfaces with the PVIS to provide passengers with flight status and aircraft position data?

FMGEC and ADIRS (B) Signup and view all the answers

What is the purpose of the airshow displays provided by the PVIS?

To show maps with the aircraft flight course (A) Signup and view all the answers

Who is the targeted audience for the maintenance information displayed on the Aeroplane Maintenance Information system?

Line maintenance, hangar maintenance, and engineering staff (A) Signup and view all the answers