CIDS Quiz: Cabin Intercommunication Data System in Airbus

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Questions and Answers

What is the main function of the Decoder/Encoder Unit Type-A?

To control passenger-related systems (correct)

To control the temperature of the cabin

To control cabin-crew-related systems

To control the direction of the aircraft

How are the DEU-As connected to the DIRs?

Through a wireless connection

Through a physical cable

Through a mechanical connection

Through a CIDS data-bus (correct)

What is the primary function of the CIDS system in commercial aircraft?

To power the turbine engine

To control and display cabin functions for passengers and crew (correct)

To manage the aircraft's aerodynamic systems

To monitor the structural integrity of the aircraft

What is the purpose of the two top line data buses on each side of the cabin?

To provide a backup system in case of failure Signup and view all the answers

What is the purpose of the Decoder/Encoder Unit in the CIDS system?

To decode and encode data for transmission and reception Signup and view all the answers

How are the DEU-As addressed?

Through coding switches Signup and view all the answers

What is found at the end of each chain of DEU-As?

A Bus Termination Resistor (BTR) Signup and view all the answers

What is the redundancy feature in the CIDS Director system?

Having two identical directors, one active and one in hot-standby mode Signup and view all the answers

What is the function of the crosstalk bus in the CIDS Director system?

To check the results of both directors and ensure correct output Signup and view all the answers

How many DEU-As are installed in the A380's baseline configuration?

85 Signup and view all the answers

What is the component that receives the same inputs as the CIDS Director and processes the information?

The other CIDS Director in hot-standby mode Signup and view all the answers

What is the component that contains the Onboard Replacement Module (OBRM) in the CIDS system?

CIDS Director Signup and view all the answers

Which component is connected to the active DIR?

Cockpit handset Signup and view all the answers

What is the primary function of the Passenger Address system?

To supply one-way voice communication for announcements Signup and view all the answers

What is achieved through the CIDS communication links?

Passenger address and integrated pre-recoded announcement/boarding music Signup and view all the answers

How are announcements initiated from the cockpit?

Using either a handset or acoustic devices Signup and view all the answers

What system can the CIDS be interfaced with?

Pre-recorded voice announcements and the boarding music system Signup and view all the answers

What is broadcasted over all PA loudspeakers?

The announcement made by pressing the PTT switch Signup and view all the answers

What feature is added to the fax machine beyond normal telephone functionality?

Credit card reader Signup and view all the answers

What system is the telephone system connected to via the PESC and CTU?

Satellite Communication System Signup and view all the answers

What is the function of the System Control/Interface Module?

All of the above Signup and view all the answers

What is required to reconfigure the cabin layout in the CIDS?

A change to the software database Signup and view all the answers

What information does the Passenger Visual Information System provide to passengers?

Flight and destination data Signup and view all the answers

What is the purpose of the access code in the CIDS cabin layout selection function?

To restrict access to authorized personnel Signup and view all the answers

How are the modes of Airshow operation set?

From the Cabin Management Terminal Signup and view all the answers

Where can the cabin programming modes be accessed?

Both on the ground and in flight Signup and view all the answers

What type of data is provided to passengers through the Passenger Entertainment System Video display units?

Aircraft position data on maps Signup and view all the answers

What is the purpose of Field Loadable Software (FLS)?

To load software updates Signup and view all the answers

What is the function of the Built-In Test Equipment (BITE) circuitry?

To detect faults in the connected systems Signup and view all the answers

What is the purpose of the access code in the cabin programming modes?

To restrict access to authorized personnel Signup and view all the answers

Study Notes

Telephone and Fax System

The fax machine provides normal telephone functions with additional features like a credit card reader and LCD display.
The telephone system is connected to the Satellite Communication System (SATCOM) via the Passenger Entertainment System Controller (PESC) and the Cabin Telecommunication Unit (CTU).
The System Control/Interface Module has master control of communication between the fax, credit card reader module, and bearer system.

Passenger Visual Information System (PVIS)

The PVIS supplies passengers with in-flight visual information through the Passenger Entertainment System (PES) video display units.
PVIS provides real-time flight and destination data, including aircraft position data on maps and aircraft status data as text.
Modes of Airshow operation are set from the Cabin Management Terminal (CMT).

Decoder/Encoder Units (DEU)

DEU-A interfaces with the active DIR to control passenger-related systems, such as Passenger Service Units (PSU), PAX lighted signs, PAX-call lights, and loudspeakers.
DEU-A interfaces with the Cabin Intercommunication Data System (CIDS) via a data bus.
DEU-A is connected to the DIRs through a CIDS data bus, with two top-line data buses on each side of the left, centre, and right seat aisles for redundancy.
DEU-As are interchangeable and have installation addresses given through coding switches installed in each DEU-A connection box.

Cabin Intercommunication Data System (CIDS)

CIDS is a microprocessor-based system that controls and displays cabin functions for passengers and crew.
CIDS components include CIDS Director (DIR), Decoder/Encoder Unit A (DEU A), Decoder/Encoder Unit B (DEU B), Forward Attendant Panel (FAP), Additional Attendant Panel (AAP), and Area Call Panel (ACP).

CIDS Director (DIR)

DIR is the central control and interface component of CIDS.
There are two identical DIRs, one active and one in hot-standby mode, for redundancy.
Each DIR receives the same inputs and processes the information, with results checked via a crosstalk bus.

Communication Functions

CIDS Communication Links include passenger address and integrated pre-recoded announcement/boarding music, cabin interphone, and service interphone.
Passenger Address (PA) system supplies one-way voice communication for announcements from the cockpit or cabin crew station to passengers.

Cabin Programming and Warnings

CIDS cabin layout selection function allows reconfiguration without complex hardware changes.
Cabin programming modes are available on ground or in flight, protected by an access code.
CIDS warnings are provided through Built-In Test Equipment (BITE) circuitry in DIRs, DEUs, FAP, AAPs, and AIPs, allowing detection of faults in connected systems.

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Description

Learn about the Cabin Intercommunication Data System (CIDS) used in Airbus commercial aircraft. This microprocessor-based system controls and displays cabin functions for passengers and crew. Test your knowledge of CIDS and its role in cabin management.

Cabin Intercommunication Data System (CIDS) in Airbus

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