Table of Contents
1.0INTRODUCTION
1.1PurposeofthisDocument
1.1.1RelationshipofthisDocumenttoARINC
Characteristics597and724B
1.1.2RelationshipofthisDocumenttoARINC
Specifications618,619and620
1.2AirborneSub-SystemConfiguration
1.2.1ManagementUnit(MU)
1.2.2ControlUnit(CU)
1.2.3OptionalAdditionalComponents
1.2.4OptionalCommunicationsSub-systems
1.3Interchangeability
1.4RegulatoryApproval
2.0INTERCHANGEABILITYSTANDARDS
2.1Introduction
2.2FormFactors,ConnectorsandIndexPinCoding
2.2.1ManagementUnit(MU)
2.2.2ControlUnit(CU)
2.3StandardInterwiring
2.4PrimaryPowerInput
2.5SystemFunctionsandSignalCharacteristics
2.6EnvironmentalConditions
2.7Cooling
2.8GroundingandBonding
2.9StandardizedSignaling
2.9.1ARINC429DITSDataBus
2.9.2Standard"Open"Output
2.9.3Standard"Ground"Output
2.9.4Standard"AppliedVoltage"Output
2.9.5StandardDiscreteInput
2.9.6StandardDiscreteOutput
2.9.7StandardProgramPinInput
3.0SYSTEMDESIGN
3.1Introduction
4.0MANAGEMENTUNITDESIGN
4.1Decoding
4.2Synchronization
4.3UplinkPreambleProcessing
4.3.1StartofHeader
4.3.2ModeCharacterRecognition
4.3.3AddressRecognition
4.3.3.1AircraftRegistrationNumber
4.3.3.2AirlineIdentification
4.3.4TechnicalAcknowledgement
4.3.5LabelRecognition
4.3.6UplinkBlockIdentifier
4.3.7EndofPreamble/Suffix
4.4UplinkBCSCheck
4.5Input/OutputInterfaces
4.5.1ManagementUnit/OOOISensorInterfaces
4.5.2ManagementUnit/ControlUnitDataInterface
4.5.2.1MU/CUDataTransferProtocol
4.5.2.1.1MUFailureWarning
4.5.2.1.2VoiceCircuitsBusy
4.5.2.1.3DownlinkArmed
4.5.2.1.4LinkTestInitiate
4.5.2.1.5CUFunctionKeyStatus
4.5.2.1.6220TextCharacterAlert
4.5.3ManagementUnit/CabinTerminalInterference
4.5.4ManagementUnit/OptionalAuxiliaryTerminal
4.5.5CommunicationsSystemInterface
4.5.6ManagementUnit/AuxiliaryEquipmentInterface
4.5.7ManagementUnit/CentralWarningSystemInterface
4.5.8ManagementUnit/PrinterInterface
4.5.8.1InterfaceDiscipline
4.5.8.2PrinterStatusAnnunciation
4.5.9MU/FDAUDataInterface
4.5.10MU/FMCDataInterface
4.5.11MU/SatelliteDataUnit(SDU)Interface
4.6UniversalCoordinatedTime(UTC)Clock
4.6.1GroundGMTUpdateMessage
4.6.2GroundUTCUpdateMessage
4.7MUDiscreteInputsandOutputsandProgramPins
4.7.1"NoCommunications"Alert
4.7.2VoiceGo-Ahead(DatatoVoiceChannelChangeover)
4.7.3Reserved
4.7.4VoicetoDataChannelChangeover(SharedVHF
TransceiverCase)
4.7.5MUFailureWarning
4.7.6Voice/DataModeSelectionandAnnunciation
4.7.6.1RemoteVoice/DataModeSelect
4.7.6.2Voice/DataModeAnnunciationOutput
4.7.7Captain/FirstOfficerIdentificationDiscrete
4.7.8DedicatedTransceiverAnnunciationProgramPin
4.7.9VoiceGo-AheadAlertResetDiscreteInput
4.7.10Reserved
4.7.11Reserved
4.7.12Reserved
4.7.13FMCActivePortSelectDiscreteInput
4.7.14Voice/DataModeMonitorDiscreteInput
4.7.15Reserved
4.7.16Reserved
4.7.17OOOISensorDiscreteInputsandProgramPins
4.7.18DFSPortSelectDiscreteOutput
4.7.19VHF/HFDiscreteInput
4.7.20DepartureReportTransmissionDelayProgram
4.7.21UplinkBCSIndicatorDiscreteOutput
4.7.22UplinkACKIndicatorDiscreteOutput
4.7.23UplinkNAKIndicatorDiscreteOutput
4.7.24OATDataTerminalReadyDiscreteInput
4.7.25OATRequesttoSendDiscreteInput
4.7.26MUCleartoSendDiscreteInput
4.7.27FMCActivePortPairSelectDiscreteInput
4.8DownlinkMessageFormats
4.9Priorities
4.10PolledMode/DemandModeChangeover
4.11DownlinkPreambleGeneration
4.12DownlinkMessageAssembly
4.13Modulation
4.14RadioTransmitterKeying
4.15RadioTransceiverTuning
4.16RemainingDownlinkTrafficDisposition
4.17MUInterfacesforDFAUandFlightManagementComputers
4.17.1MU/DFDAUDataExchangePorts
4.17.2MU/FMCDataExchangePorts
4.18DFDAUMessageFormats
4.19DataTransferTo/FromSatelliteDataUnit(SDU)
5.0CONTROLUNITDESIGN
5.1NumericDataEntryFacilities
5.2AlphaDataEntryFacilities
5.3FunctionKeyOperation
5.4Voice/DataSwitch
5.5DisplayCallUptoKeyOperation
5.6Annunciators
5.7CU-to-MUDataTransfer
5.7.1FrameStructure
5.8DisplayProvisions
6.0PROVISIONSFORTEST
6.1AutomaticTestEquipment(ATE)Provisions
6.1.1UnitIdentification
6.1.2PinAllocation
6.1.3UseofATLASLanguage
6.2Built-In-TestEquipment(BITE)
6.2.1FaultMonitor
6.2.2SelfTests
6.2.3BITEMemoryOutput
ATTACHMENTS
1-1AirborneSub-SystemBlockDiagram
1-2ManagementUnitConnectorPositioning
1-3ControlUnitConnectorPositioning
1-4ControlUnitTypicalPanelLayout
2-1StandardInterwiring
2-2NotesApplicabletotheStandardInterwiring
2-3ConnectorInsertLayout
3EnvironmentalTestCategories
4Command/ResponseMessageTextFormats
5SerialDigitalChannelSelection
APPENDIX
AOATDesign"B"
BVoicetoDataChannelChangeover Abstract
Defines the "Mark 2" version of the ACARS equipment. It is intended for use in conjunction with existing airborne radio equipment to enhance air-ground operational control communications.
