Table of Contents
1.0INTRODUCTIONANDDESCRIPTION
1.1PurposeandScope
1.2RelationshiptoOtherDocuments
1.3FunctionalOverview
1.4SystemDescription
1.5Interchangeability
1.6RegulatoryApproval
1.7IntegrityandAvailability
1.8Reliability
1.9TestabilityandMaintainability
1.10FlightSimulator
2.0INTERCHANGEABILITYSTANDARDS
2.1Introduction
2.2FormFactors,ConnectorsandIndexPinCoding
2.3StandardInterwiring
2.4PowerCircuitry
2.5StandardizedSignaling
2.6EnvironmentalConditions
2.7Cooling
2.8Weights
2.9GroundingandBonding
3.0SYSTEMDESIGNCONSIDERATIONS
3.1SystemConfigurations
3.2CertificationDesignConsiderations
3.3SystemResponsetoPowerInterrupts
3.4FlightManagementFunction(FMF)Accuracy
andPerformance
3.5DualSystemConsiderations
3.6Modularity
3.7ConfigurationDataSources
3.8InstallationConsiderations
4.0FLIGHTMANAGEMENTFUNCTION
4.1Introduction
4.2FunctionalInitializationandActivation
4.3FunctionalDescription
4.4TrainingSimulatorSupportFunctions
5.0GNSSSENSORFUNCTION
5.1Description
5.2GeneralSystemCapabilities
5.3SensorInputs
6.0PRECISIONLANDINGFUNCTIONS
6.1Introduction
6.2Interfaces
6.3ConfigurationInitialization
6.4PrecisionLandingFunctionTuning/Control
6.5FailureWarningAnnunciation
6.6GlideSlopeDeviationBarandFlagBiasing
6.7AudioOutputs
6.8FunctionalTest
6.9ILSReceiverDesign
6.10MLSReceiverDesign
6.11GNSSPrecisionLandingFunction
7.0VHFNAVIGATIONFUNCTION
7.1Introduction
7.2GeneralCapabilities
7.3ConfigurationInitialization
7.4VORTuning/Control
7.5FailureWarningAnnunciation
7.6FunctionalTest
7.7VHFReceiverDesign
8.0AIRPLANEPERSONALITYMODULE
8.1General
8.2APMInterfaceRequirements
8.3APMData
9.0GNLUCONTROLPANELS
9.1General
9.2Multi-FunctionControl/DisplayUnit(MCDU)
9.3MMRFunctionControlandDisplay
10.0ANTENNAS
10.1Introduction
10.2GNSSUpperAntenna
10.3LocalizerAntenna
10.4GlideSlopeAntenna
10.5MLSAntennas
10.6VORAntenna
11.0STANDARDINTERFACES
11.1General
11.2DigitalDataInputPorts
11.3DigitalDataOutputPorts
11.4DiscreteInputs
11.5DiscreteOutputs
11.6GNLU/GNLUIntersystemBus
11.7EthernetInterface
11.8ReservedATEPorts
11.9GNLUAnalogInputs
11.10GNLUAnalogOutputs
11.11GNLURFInterfaces
11.12AircraftPersonalityModule
11.13FrontPanelDataLoadConnector
12.0ELECTRONICFLIGHTINSTRUMENTSYSTEMINTERFACE
12.1General
13.0COMMUNICATIONSMANAGEMENTUNITINTERFACE
13.1General
14.0DATABASESTORAGECONSIDERATIONS
14.1Introduction
14.2NavigationDataBase
14.3AirlineModifiableInformation(AMI)DataBase
14.4PerformanceDataBase
14.5MagneticVariationDataBase
14.6TerrainandObstacleData
14.7AirportSurfaceMapData
14.8ConfigurationDataBase
15.0BUILTINTESTANDMAINTENANCEPROVISIONS
15.1GeneralDiscussion
15.2FaultDetectionandReporting
15.3RampMaintenance
15.4ProvisionsforAutomaticTestEquipment
ATTACHMENTS
1-1GNLSFunctionalBlockDiagram
1-2GNLSConfiguration1-NavigationOnly
1-3GNLSConfiguration2-LandingOnly
1-4GNLUConfiguration3-NavigationandLanding
1-5GNLUIntegrityGuidelines
2-1GNLUConnectorPositioning
2-2StandardInterwiring
2-3NotesApplicabletoStandardInterwiring
2-4GNLUConnectorPositionandPinLayout
3(TBD)
4-1ARINC429InputandOutputBuses
4-2FMFInterfaceBuses
4-3ARINC429VORLabelDefinitions
5EnvironmentalTestCategories
6DCPowerTransientVoltageRequirements
7ARINC547ReceiverUnitDesignCompatibility
8FrequencySelectorTwo-out-of-FiveBinaryCode
9GNLUOutputSensitivity
APPENDIXES
AReferencedDocuments
BAcronyms Abstract
Gives the desired characteristics of the GNSS Navigation and Landing Unit (GNLU) that is meant for installation of all types of aircraft. The aim of this document is to provide specific and general guidance for developing and installing the GNLU unit which is used primarily for airlines. Describes the operational capability of the equipment needed and the standards that are necessary to ensure interchangeability, pin assignments and form factor.
