Table of Contents
1.0Introduction
1.1BasicPrinciple
1.1.1RelationshiptoARINCCharacteristic563
1.1.2RelationshiptoARINC307"WireBundleSpec"
1.1.3RelationshiptoARINC542
1.1.4RelationshiptoARINC557VoiceRecorder
1.1.5Definitions
1.2FunctionsandModesofOperation
1.2.1General
1.2.2AcquisitionofDataSamples
1.3ReliabilityandMaintainability
1.3.1Reliability
1.3.2Maintainability
1.4UnitDescriptions
1.4.1FlightDataAcquisitionUnit
1.4.2FlightDataEntryPanel(FDEP)
1.4.3DigitalFlightDataRecorder(DFDR)
1.4.4AuxiliaryDataAcquisitionUnit
1.4.5Accelerometer
1.5Interchangeability
1.6RegulatoryApproval
2.0StandardsRequiredtoEffectInterchangeability
2.1FormFactors,ConnectorsandIndexPinCoding
2.1.1FlightDataAcquisitionUnit(FDAU)
2.1.2DigitalFlightDataRecorder(DFDR)
2.1.3FlightDataEntryPanel(FDEP)
2.1.4Accelerometer
2.1.5AuxiliaryDataAcquisitionUnit(ADAU)
2.2InputandOutputSignalCharacteristics
2.3StandardInterwiring
2.4PowerCircuitry
2.4.1PrimaryACPowerInput
2.4.2SensorExcitation
2.5Weights
2.6EnvironmentalRequirements
3.0SystemDesign
3.1General
3.2DataSources
3.3DataMultiplexing
3.4SequenceControl
3.5DataRate
3.6InputCircuitProtection
3.7PeakDetectSignalConditioning
3.8SystemAccuracy
3.9FailureWarningandFunctionalTest
3.9.1MinimumRequirements
3.9.2CustomerNeeds
4.0StandardSignalCharacteristics
4.1InterfaceStandards
4.1.1GeneralAccuracyandOperatingRanges
4.1.2Resolution
4.1.3StandardizedOutputSignals
4.1.3.1SynchroStandards
4.1.3.2Standard"AppliedVoltage"
4.1.3.3"StandardGround"Signal
4.1.3.4PhaseReversingVoltageStandards
4.2AnalogInputSignals
4.2.1SynchroSignal
4.2.2ACVoltageRatioNo.1
4.2.3ACVoltageRatioNo.2
4.2.4Frequency
4.2.5DCVoltageRatioNo.1(3-wireinput)
4.2.6DCVoltageRatioNo.2(3-wireinput)
4.2.7VariableResistance(500ohm)(4-wire)
4.2.8VariableResistance(90.38ohm)(3-wire)
4.2.9Potentiometer
4.2.10High-LevelDC(2-wireinput)
4.2.11Low-LevelDC
4.2.12VeryLow-LevelDC
4.3DigitalInputs
4.3.1DigitalAirDataSystem(DADS)
4.3.2AuxiliaryDataAcquisitionUnit(ADAU)
4.3.3GMTTIME
4.3.4DigitalSensors
4.4DiscreteInputs(On-OffSignals)
4.4.1SeriesDiscrete
4.4.2ShuntDiscrete(DiodeIsolated)
4.4.3MarkerBeaconDiscrete
4.5StandardReferenceSignals
4.5.1Reference+5VDC
4.5.2Reference+20VDC(DELETED)
4.5.3Reference+28VDC
4.6SummaryofDigitalSignals
5.0FlightDataAcquisitionUnitDesign
5.1FDAUFunctions
5.2FDAUInputs
5.3OutputFormats
5.3.1AIDSDATAAddresses
5.3.1.1FrameStructure
5.3.1.2FrameSynchronization
5.3.2DFDROutputDataBus(64WordsperSecond)
5.3.3LowSpeedOutputDataBus(32WordsperSecond)
5.3.4AuxiliaryOutput
5.3.5Clock/FrameSyncOutput
5.3.6HighSpeedAuxiliaryOutput
5.4ExternalFDAUClockandSynchronization
5.5DocumentaryDataInput
5.6SelfTest
5.6.1CalibrationWord(Optional)
5.6.2SelectableCall-UpofParameters
5.7ExcitationOutputSignals
6.0DigitalFlightDataRecorderDesign
6.1RecordingCapacity
6.2SelfTest
6.2.1DFDRStatus
6.2.2MaintenanceFlagOutput
6.3PowerInputs
6.4Protection
6.5DataInput
7.0FlightDataEntryPanelDesign
7.1OutputSignals
7.1.1"DOCDATAINSERTALERT"
7.1.2Synchronization
7.1.3DataSignal
7.1.4DocumentaryInsertSignal
7.2PowerInput
7.3FailureWarningIndications
8.0AccelerometerDesign
8.1AccelerometerDescription
8.2Excitation
8.3SignalOutputs
8.3.1SignalLevels
8.3.2ErrorBand
8.3.3TemperatureEffects
8.3.3.1NullOutput
8.3.3.2Sensitivity
8.3.4Resolution
8.4Filtering(OutputFrequencyResponse)
8.5Weight
ATTACHMENTS
1NotesApplicabletoStandardInterwiring
2StandardInterwiring
3-0"SystemStatusCircuitary"
3-1SchematicofStandardInterwiring
3-2SystemBlockDiagram
4ConnectorPinLayouts
5-1PinAssignmentDFDR
5-2AccelerometerPinAssignment
5-3DataEntryPanelPinAssignment
5-4FDAUPinandSequenceCodeAssignment
6-1ARINC573FlightDataAcquisitionUnitFormFactor
6-2DFDRFormFactorConnectorLocations
6-3AccelerometerFormFactor
6-4DataEntryPanelFormFactor
7-1SummaryofNonprogrammableInputs
7-2SummaryofProgrammableInputs
7-2-1NotesApplicabletoProgrammableInputs
7-3SummaryofDiscreteInputs
7-4PinAssignmentforProgrammableParameters
8-1NotesApplicabletoAIDSDataAddresses
8-2ARINC573AIDSDataAddresses
8-3FAARequiredParameterandFrameFormat
9TypicalExamplesofDADSData
10-1WordStructure
10-2WaveShapes
10-3SynchronizationTimingTolerances
10-4DFDROutputAndLowSpeedOutput
10-5AuxiliaryOutput
10-6FDEPAndDigitalData
10-7Clock/FrameSynchronization
11DigitalInterfaceStandards
12FrequencyCount
13TypicalWiringforPotentiometers
14GuidanceforInputIsolation
15ARINC573DigitalOutputScaling
Appendix1GrowthintoAdditionalAIDS
Appendix2ExpandedParameterFlightDataRecorder
SystemRequirements
Appendix3IndexofFDAUPinAssignments
AppendixXAssumedElectronicChronometerSystem
DigitalSignalStandards(Attachments4-1-4-3)
Abstract
Provides design guidance for installation and development of an Expandable Flight Data Acquisition and Recording System intended for airline use. Includes specific requirements necessary to provide functional capability to accommodate expanded flight data recording plus requirements needed to insure interchangeability of equipment in standard aircraft installations.
