Table of Contents
1.0INTRODUCTION
1.1PurposeandScope
1.2DocumentPrecedence
1.3GlobalDataCommunicationEnvironment
1.3.1DataFlow
1.3.1.1InternalData
1.3.1.2ExternalData
1.4DocumentOverview
2.0AVIONICSSYSTEMARCHITECTURES
2.1ArchitecturalConsiderations
2.1.1Reliability
2.1.2Maintainability
2.1.3Capacity/Rate
2.1.4Integrity
2.1.5Determinism
2.1.6DegreeofIntegration
2.1.7CostEffectiveness
2.1.8Weight
2.1.9ApplicationofCommercial-Off-The-Shelf(COTS)
Software
2.1.10Growth
2.1.11CompatibilitywithExistingSystems
2.1.12Security
2.1.13Availability
2.1.14MediaFlexibility
2.1.15TechnologyMaturity
2.2StandardBusesVersusPrivateBuses
3.0AVIONICSFUNCTIONALCONSIDERATIONS
3.1AvionicsCommunications
3.2FlightCriticalFunctions
3.3EssentialFunctions
3.4DataLinkFunctions
3.5OtherFunctions
4.0AVIONICSNETWORKDEFINITION
4.1NetworkObjectives
4.1.1RatingObjectives
4.1.2CustomizingObjectives
4.2Services
4.2.1DataTransferServices
4.2.1.1TransferTypesandMechanisms
4.2.1.2AccessMechanisms
4.2.1.3Addressing
4.2.1.4RepresentationofData
4.2.2NetworkOperationandControlServices
4.2.2.1DebugandIntegrationSupport
4.2.2.2StatusandEventNotification
4.3Quality
4.3.1Availability
4.3.2Errors
4.3.2.1EffectsonAddress,DataandControlEntities
4.3.2.2Response(s)toErrors
4.3.3Built-InTest(BIT)
4.4Capacity
4.4.1NumberofClients
4.4.2NumberofInterfaces
4.4.3AddressSpace
4.4.4MessageSize
4.4.5Speed
4.4.5.1Throughput
4.4.5.2Latency
4.5ArchitectureSupport
4.5.1Redundancy
4.5.2FaultContainment
4.5.3Determinism
4.5.4Synchronization(Inter-Network)
4.5.5CentralResource(s)
4.5.6Hooks
4.6Issues
4.6.1TenureLength/ArbitrationFrequency
4.6.2Maintenance
4.6.3DiagnosticsandTest
4.6.4HotInsertion
4.6.5ValidationandVerification
4.7Constraints
4.7.1Cost
4.7.2Packaging
4.7.3Connectors
4.7.4PhysicalConstraints
4.7.4.1ComponentPlacement
4.7.4.2DropSpacing(Minimum,Maximum)
4.7.5ElectricalCharacteristics
4.7.6ElectromagneticEnvironment
4.7.7PowerSupply
4.7.8MissingNodes,OpenDrops
APPENDICES
AGlossary
Abstract
Provides the framework for developing a compilation of requirements for an airplane-wide avionics network. Provides system-level considerations for the development of such a network which may include a mix of standard data buses and private data buses.
