SEMANA 02/05 A 03/05

Military avionics are a unique system that accounts for up to 50% of the aircrafts cost

Military avionics are a collection of subsystems that account for up to 50% of the aircrafts cost

Avionics stands for Aerial Visual Electronics

None of the Above

A. Hard boundaries have turned to soft boundaries

B. Systems are kept as isolated as possible to avoid chain reactions

C. Cost has increased throughout the years

D. A and C are correct

Avionics architecture is a description of everything related to avionics

Analogue architecture used buses

Analogue architecture units where hardwired

All of the above

A subsystem that interconnects devices

A subsystem that needs algorithmic rules and protocols

Could be compared to a human nervous system

All of the above

Serial or parallel

Poli and mono source

Precedent and primary

Primary and secondary

Single source (point to point)

Single source (full duplex

Multiple source (half duplex)

None of the above

Communication protocols where only part of analogue architectures and no longer play a role regarding data buses

Bus Architecture describes how the various system elements are interconnected and organized

LRU stands for Liquid Ram Units

A CPU is usually not part of the elements that comprise a bus data system

Synchronous or asynchronous

A limitations is that data can only be exchanged between two devices

Both are correct

None of the above are correct

The ARINC (Aeronautical Radio INCorporation) is widely used in civil aircraft and supports multiple-redundant operation with dual-redundant operation wich allows physical separation of data buses.

The MIL-STD-1553B is widely used in military aircraft and it is a command-response system in which transmissions are conducted under control of a single bus controller at any one time.

The strong points of the MIL-STD-1553B are its reliability and sturdiness but it is not well established yet.

All previous answers are correct.

Federated digital architecture

Distributed analogue architecture

Integrated modular architecture

Distributed digital architecture

A. LRUs (Line Replaceable Units) or Bus Users

B. Bus Stop / Bus coupler

C. A and B are correct

D. A and B are false

A. Number of bits at a time (serial or parallel)

B. Number of sources and sinks (single surce – single sink, single source – multiple sink or multiple source – multiple sink)

C. Number of wires depending on the same Information Packing Equipment (single or dual

D. A and B are correct

A. Is a development of modular integrated architecture implemented in the F22

B. Does not have data buses for cabinet interfaces

C. Has Common Integrated Processor (CIP)

D. A and C are correct