Aeroplane Systems: Decoder/Encoder Unit Type-A

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What type of decoder/encoder unit interfaces with the active DIR to control passenger-related systems?

DIR
PSU
DEU-B
DEU-A (correct)

What factor determines the number of DEU-As required in an aircraft?

Type of flight
Installation of optional systems and cabin layout (correct)
Number of passengers
Aircraft type

What type of resistor is found in the end connection box of each DEU-A chain?

Encoder Resistor
Data Bus Resistor
Decoder Resistor
Bus Termination Resistor (BTR) (correct)

What is the maximum number of DEU-As that can be installed in an A380?

192 (C) Signup and view all the answers

What type of data bus do the DEU-As connect to?

CIDS data-bus (D) Signup and view all the answers

What is the purpose of the coding switches installed in each DEU-A connection box?

To give the installation address (B) Signup and view all the answers

What is the primary benefit of the Cabin Passenger Management System (CPMS) to the crew?

Reduced cabin organisation workload (A) Signup and view all the answers

What is the purpose of the cabin configuration reports?

To establish class divisions and seat lockouts (B) Signup and view all the answers

What is the main advantage of the modular concept of the CPMS?

It enables easy extension of the system (B) Signup and view all the answers

What type of information is provided to the cabin crew from the ground base via ACARS?

Information about the destination (D) Signup and view all the answers

What is the primary function of the emergency crew alerting system?

To indicate unusual behavior in the cabin or cockpit (D) Signup and view all the answers

What is the primary function of the provisioning reports?

To establish catering requirements (A) Signup and view all the answers

How is the emergency crew alerting system initiated?

Through the alert push-button from the cabin or the cockpit (D) Signup and view all the answers

What is the purpose of the attendant flight reports?

To report issues or faults to the maintenance team (C) Signup and view all the answers

What is the purpose of the CIDS interface with the emergency lighting system?

To monitor the system and carry out battery-capacity tests (B) Signup and view all the answers

What is the function of the flexible heater foil in the ice protection and control system?

To bond the drain mast tubes (C) Signup and view all the answers

What is the primary function of the CIDS?

To provide performance and operational requirements of the interfaced system on the FAP display (A) Signup and view all the answers

What is monitored by the door and escape-slide control system?

The door and escape-slide control system (B) Signup and view all the answers

What is the primary function of the Server Interface Unit (SIU)?

To provide an interface between the airline network and the aircraft avionics (A) Signup and view all the answers

What is the main purpose of the Aircraft Information Network System (AINS)?

To serve as a host-platform for maintenance and operations applications (D) Signup and view all the answers

What is the relationship between the Cabin Network Services (CNS) and the Aircraft Information Network System (AINS)?

CNS is a part of the AINS (D) Signup and view all the answers

What is the function of the Aircraft Network Server Unit (ANSU)?

To host maintenance and operations applications (A) Signup and view all the answers

What is the significance of the CIDS caution message on the ECAM?

It is only displayed if one DIR fails (D) Signup and view all the answers

What is the purpose of the ethernet switch in the Server Interface Unit (SIU)?

To accommodate an ethernet switch (A) Signup and view all the answers

What is the primary function of the antenna in the Cabin Network System?

To receive and transmit signals from wirelessly connected devices (A) Signup and view all the answers

What is the data rate of the Cabin Connector?

Up to 100 Mbps (B) Signup and view all the answers

Which system does the CNS interface with to enable facsimile services?

Passenger Air-to-Ground Telephone/Fax System (PATS) (D) Signup and view all the answers

What is the purpose of the Satellite Data Unit (SDU) in the PATS?

To allow a worldwide FAX service (A) Signup and view all the answers

What is the Fax Machine used for in the PATS?

To establish voice and data connections to the public telephone network (D) Signup and view all the answers

What is the performance of the PATS comparable to?

A typical office fax machine (C) Signup and view all the answers