30 Questions
What type of decoder/encoder unit interfaces with the active DIR to control passenger-related systems?
DEU-A
What factor determines the number of DEU-As required in an aircraft?
Installation of optional systems and cabin layout
What type of resistor is found in the end connection box of each DEU-A chain?
Bus Termination Resistor (BTR)
What is the maximum number of DEU-As that can be installed in an A380?
192
What type of data bus do the DEU-As connect to?
CIDS data-bus
What is the purpose of the coding switches installed in each DEU-A connection box?
To give the installation address
What is the primary benefit of the Cabin Passenger Management System (CPMS) to the crew?
Reduced cabin organisation workload
What is the purpose of the cabin configuration reports?
To establish class divisions and seat lockouts
What is the main advantage of the modular concept of the CPMS?
It enables easy extension of the system
What type of information is provided to the cabin crew from the ground base via ACARS?
Information about the destination
What is the primary function of the emergency crew alerting system?
To indicate unusual behavior in the cabin or cockpit
What is the primary function of the provisioning reports?
To establish catering requirements
How is the emergency crew alerting system initiated?
Through the alert push-button from the cabin or the cockpit
What is the purpose of the attendant flight reports?
To report issues or faults to the maintenance team
What is the purpose of the CIDS interface with the emergency lighting system?
To monitor the system and carry out battery-capacity tests
What is the function of the flexible heater foil in the ice protection and control system?
To bond the drain mast tubes
What is the primary function of the CIDS?
To provide performance and operational requirements of the interfaced system on the FAP display
What is monitored by the door and escape-slide control system?
The door and escape-slide control system
What is the primary function of the Server Interface Unit (SIU)?
To provide an interface between the airline network and the aircraft avionics
What is the main purpose of the Aircraft Information Network System (AINS)?
To serve as a host-platform for maintenance and operations applications
What is the relationship between the Cabin Network Services (CNS) and the Aircraft Information Network System (AINS)?
CNS is a part of the AINS
What is the function of the Aircraft Network Server Unit (ANSU)?
To host maintenance and operations applications
What is the significance of the CIDS caution message on the ECAM?
It is only displayed if one DIR fails
What is the purpose of the ethernet switch in the Server Interface Unit (SIU)?
To accommodate an ethernet switch
What is the primary function of the antenna in the Cabin Network System?
To receive and transmit signals from wirelessly connected devices
What is the data rate of the Cabin Connector?
Up to 100 Mbps
Which system does the CNS interface with to enable facsimile services?
Passenger Air-to-Ground Telephone/Fax System (PATS)
What is the purpose of the Satellite Data Unit (SDU) in the PATS?
To allow a worldwide FAX service
What is the Fax Machine used for in the PATS?
To establish voice and data connections to the public telephone network
What is the performance of the PATS comparable to?
A typical office fax machine
Learn about the Decoder/Encoder Unit Type-A in aircraft systems, its functions and interfaces with passenger-related systems. Part of CASA Part 66 training materials.
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