Thales Avionics TFS-SDU82155A Topflight SATCOM Satellite data unit User Manual Satellite Data Unit SDU

Thales Avionics Limited Topflight SATCOM Satellite data unit Satellite Data Unit SDU

Installation and maintenance manual

Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 1 Installation and Maintenance Manual TopFlight Satcom SDU – 82155A Series SCM – 82158A Series
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 2 Page intentionally left blank
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 3 RECORD OF REVISIONS REV. NO. REVISION DATE DATE INSERTED BY REV. NO. REVISION DATE DATE INSTERTED BY 2 October 2007
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 4 CONTENTS 1. INTRODUCTION....................................................................................6 1.1. Purpose of Manual............................................................................6 1.2. Scope.................................................................................................7 1.3. References ........................................................................................7 1.4. Compliance to Regulations .............................................................7 1.5. List of Abbreviations........................................................................8 2. DESCRIPTION.....................................................................................10 2.1. TFS Satellite Communication System Domain ...........................10 2.2. TFS System Overview ....................................................................10 2.3. SDU General Description...............................................................11 2.4. Interfaces.........................................................................................20 2.5. Configuration Straps......................................................................21 2.6. SDU Interconnections ....................................................................22 2.7. SCM General Description...............................................................30 3. INSTALLATION GUIDELINES..........................................................36 3.1. Introduction.....................................................................................36 3.2. Interchangeability...........................................................................36 3.3. SDU / SCM Location and Accessibility Guidelines......................36 3.4. Mounting Tray.................................................................................37 3.5. Cooling ............................................................................................37 3.6. Power Requirements......................................................................37 3.7. SDU RF Connections......................................................................38 3.8. Bonding Requirements ..................................................................39
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 5 3.9. SDU Fitting Instructions.................................................................39 3.10. SDU Removal Instructions.........................................................40 3.11. SCM Fitting Instructions.............................................................40 3.12. SCM Removal Instructions.........................................................41 4. INSPECTION AND SYSTEM CHECKOUT......................................42 4.1. Inspection/Check procedure .........................................................42 4.2. System Checkout............................................................................42 5. MAINTENANCE...................................................................................44 5.1. Introduction.....................................................................................44 5.2. Cleaning of Mechanical Parts........................................................44 5.3. Periodic Checks..............................................................................44 5.4. Cabling and Connections ..............................................................44 6. TESTING AND FAULT ISOLATION.................................................45 6.1. BITE Function .................................................................................45 6.2. Test Functions................................................................................46 6.3. Fault Isolation .................................................................................48 7. INSTRUCTIONS FOR CONTINUED AIRWORTHINESS......................54
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 6 1. INTRODUCTION 1.1. Purpose of Manual This manual sets forth installation and maintenance guidelines for the THALES TopFlight Satcom (TFS) Satellite Data Unit (SDU), and SDU Configuration Module (SCM). The SDU and SCM installation specific and general guidelines contained within this manual are supported by mechanical and electrical interconnection drawings. Drawings should be reviewed by the installation organisation, and any requirements specific to a particular airframe should be assessed before installation is commenced. The Manual covers the following topics:  Title Page  Record of Revisions  Table of Content  Introduction  Description  Installation Guidelines  Inspection and System Checkout  Maintenance  Testing and Fault Isolation  Instructions for Continued Airworthiness NOTE: This manual does not cover aircraft system commissioning test procedures. Advisory notes presented within this manual such as: ‘Warnings, Cautions and Notes’ are applicable to the TFS system as follows:  A WARNING is used to alert the reader to possible hazard which may cause loss of life or physical injury  A CAUTION is used to denote the possibility of damage to materiel but not danger to personnel  A NOTE is used to convey, or draw attention to, information that is extraneous to the immediate subject of the text For any queries related to information contained within this Manual contact the following THALES TFS Project Manager: 86 Bushey Road Raynes Park, London SW20 0JW, UK Tel. +44 (0)20 8946 8011 Fax. +44 (0)20 8946 7530
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 7 1.2. Scope The Thales SDU and SCM comply with the design requirements set forward in the ARINC 781 Characteristic. An ARINC 781 compliant system is intended to support one or more of the Inmarsat aeronautical services known as ‘Classic-Aero’, ‘Swift 64’, and ‘SwiftBroadband. This manual provides information specific for the SDU and SCM capable of providing SwiftBroadband (SBB) services for Single Aisle (SA) aircraft configuration. The SDU and SCM covered in this manual support the single channel Inmarsat Class 3A and Class 7 services only. 1.3. References 1.2.1. THALES SCM Component Maintenance Manual 44-35-33. 1.2.2. THALES SDU Component Maintenance Manual 44-35-32. 1.2.3. EMS AMT-3500 Intermediate Gain Antenna Subsystem Installation Manual MN-1242-20047. 1.2.4. ARINC 429: Mark 33 Digital Information Transfer System. 1.2.5. ARINC 600 Characteristic: Air Transport Avionics Equipment Interfaces. 1.2.6. ARINC 615 Characteristic: Airborne Computer High speed Data Loader. 1.2.7. ARINC 615A Characteristic: Ethernet Based Data loading. 1.2.8. ARINC 781 Characteristic: Mark III Aviation Satellite Communication (Satcom) System Avionics. 1.2.9. Transmitter Certification of FCC ID: KV6-TFS-SDU82155A Series TFS SDU to Federal Communications Commission rule part 87 and Confidentiality: A111/STE-012/006. 1.2.10. RTCA DO-160E/EUROCAE ED-14E: Environmental Conditions and Test Procedures for Airborne Equipment. 1.4. Compliance to Regulations 1.4.1. FCC:  The SDU is designed to be compliant with part 15 and part 87 of the Federal Communication Commission (FCC) regulations.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 8 1.4.2. The installation must be compliant to:  EASA/FAR 25.869 Fire protection: systems  EASA 25X0899 Electrical bonding and protection against lightning and static electricity  EASA/FAR 25.1301 Equipment, general, function and installation  EASA/FAR 25.1309 Equipment, systems and installations  EASA 25X1316 System lightning protection  EASA/FAR 25.1353 Electrical equipment and installations  EASA/FAR 25.1357 Circuit protective devices  EASA 25X1360 Precautions against injury  EASA/FAR 25.1431 Electronic equipment  EASA 25.561 Emergency Landing 1.5. List of Abbreviations ac Alternating Current ACARS Aircraft Communication Addressing and Reporting System ADL Airborne Data Loader AES Aeronautical Earth Station AGS Airborne GSM Server AIM Antenna Interface Mounting AMO Approved Maintenance Organization AOR-E Atlantic Ocean Region-East AOR-W Atlantic Ocean Region-West APM Avionics Processor Module ARINC Aeronautical Radio Inc. ATE Automatic Test Equipment BGAN Broadband Global Area Network BITE Built In Test Equipment BSU Beam Steering Unit CCM Channel Card Module CDU Control Display Unit CMM Component Maintenance Manual CPM Communication Processor Module dc Direct Current DLNA Diplexer and Low Noise Amplifier EASA European Aviation Safety Agency ECM External Configuration Memory ECS Environmental Control System EMC Electromagnetic Compatibility ESD Electro Static Discharge ESDS Electro Static Discharge Sensitive FPL Front Panel LED GES Ground Earth Station GNSS Global Navigation Satellite System GPS Global Positioning System HPA High Power Amplifier IGA Intermediate Gain Antenna IMEI International Mobile Equipment Identity IMM Installation and Maintenance Manual IMSI International Mobile Subscriber Identity
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 9 INMARSAT International Maritime Satellite Organization IOR Indian Ocean Region IP Internet Protocol IPC Illustrated Parts List IRS Inertial Reference System I/O Input/Output ISDN Integrated Service Digital Network LED Light Emitting Diode LES Land Earth Station LRU Line Replaceable Unit mA MilliAmpere MCDU Multi-function Control and Display Unit MCU Modular Concept Unit MEL Minimum Equipment Level MES Mobile Earth Station MIB Management Information Base NVM Non Volatile Memory OMS Onboard Monitoring System ORT Owner Requirements Table OCXO Oven Controlled Crystal Oscillator PAST Person Activated Self Test PC Personal Computer PLMN Public Land Mobile Network P/N Part Number POR Pacific Ocean Region POST Power On Self-Test PPPoE Point To Point Protocol over Ethernet PSM Power Supply Module PSTN Public Switched Telephone Network RF Radio Frequency SA Single Aisle SATCOM Satellite Communication SBB SwiftBroadband SCDU Satellite Control Display Unit SCM SDU Configuration Module SDU Satellite Data Unit SIM Subscriber Identity Module SIS Standalone Interface System SNMP Simple Network Management Protocol SRU Shop Replaceable Unit STC Supplemental Type Certificate SW Software TCP/IP Transmission Control Protocol/Internet Protocol TFS TopFlight Satcom UMTS Universal Mobile Telecommunication System USIM Universal Subscriber Identity Module Wi Fi Wireless Fidelity WLAN Wireless Local Area Network WOW Weight On Wheels
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 10 2. DESCRIPTION 2.1. TFS Satellite Communication System Domain SATCOM (Satellite Communications) systems provide users with long-range voice and data communication by accessing global satellite and ground communications networks. The introduction of Pico-Cells on aircrafts, and the new I4 INMARSAT constellation of geostationary satellites have been the enabling technologies for the development of significantly smaller, more capable terminals such as the Thales TopFlight Satcom system. SwiftBroadband is the aeronautical service, which operates on the INMARSAT BGAN (Broadband Global Area Network) infrastructure. SwifBroadband supports Circuit Switched and always-on TCP/IP data (packet switched) services. Thales SBB TopFlight Satcom system supports the Inmarsat Classes of service 3A and 7. Figure 2-1 below depicts the TFS communication system. Inmarsat domainTFS SystemI4 SatelliteBackbone NetworksIP, PLMN, PSTNUser TerminalsAeronautical SegmentSatelliteAccessStationSpace SegmentGround Segment Figure 2-1: Example of TFS communications system overview. 2.2. TFS System Overview The TFS system conforms to the ARINC-781 Characteristic, and interfaces with onboard avionics and communication equipment to provide the aircraft with a range of communication services by transmitting and receiving L Band signals to and from the fourth generation of INMARSAT satellites. For this purpose the INMARSAT satellite constellation is connected to the ground backbone telecommunication network through Satellite Access Stations (SAS) operated by service providers.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 11 The TFS system consists of the following LRUs (Line Replaceable Unit):  One SDU (Satellite Data Unit)  One SCM (SDU Configuration Module)  One DLNA (Diplexer Low Noise Amplifier)  One IGA (Intermediate Gain Antenna) Figure 2-2 below depicts TFS system interfacing for the Single Aisle configuration. Figure 2-2: Example of Single Aisle TFS system interfacing. 2.3. SDU General Description 2.3.1. Hardware The SDU hardware meets RTCA/DO-254 level D requirements, and it is composed (see Fig 2-3) of the following internal sub-assemblies:  High Power Amplifier (HPA)  Channel Card Module (CCM) x 1  Communication Processor Module (CPM)  Power Supply Module (PSM)  Oven Controlled Crystal Oscillator (OCXO)  Avionics Processor Module (APM)  Backplane  Front Panel IGA
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 12 The SDU enclosure is constructed of machined lightweight aluminium alloy and it is packaged in an ARINC 600 6 MCU (Modular Concept Unit) housing suitable for mounting in the equipment bay of an aircraft. Two hold-down clamps are used to secure the SDU, permitting it to be firmly held in position in the mounting rack. A handle fitted on the front panel of the SDU permits removal, installation and carrying of the SDU. Figure 2-3: Example of SDU sub-system modules exploded. 2.3.2. Software The software in the SDU can be considered as being supplied in two elements, one contained within the CCM the other operating on the SDU processors (CPM & APM). The SDU’s application software primarily functions as the system controller providing system level tasks such as CCM control, BITE reporting, Avionics interfacing via ARINC-429 (including IRS (Inertial Reference System)) and providing external interfaces (such as Ethernet) as well as routing functions between the external interfaces and the CCM as necessary. The SDU’s APM and CPM application software meets RTCA/DO-178B level D requirements, and the CCM application software meets RTCA/DO-178 level E requirements.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 13 2.3.3. ORT Parameters The SCM ORT (Owner Requirement Table) is also stored inside the SDU. The ORT database contains configuration data that is used to customize the operation of the TFS system. It allows various preferences to be set to enable the efficient use of the equipment in normal operation. The SDU is delivered to customers with a default ORT. 2.3.4. General Operation The SDU controls and processes all essential data in order to manage the reception and transmission of data through the satellite link. The SDU controls the set-up of the required channel types, providing modulation/demodulation, error correction, coding, and data rates associated with the satellite communication channel(s). The SDU is of modular design and can be configured for use on a wide variety of aircraft. It meets requirements for cabin only, cockpit only and cabin and cockpit services. This manual however covers the SA cabin only configuration. The SDU converts digital/audio inputs to Radio Frequency (RF), and contains a High Power Amplifier (HPA) function providing the necessary output power to support communication between the aircraft and the satellite. It also controls the associated antenna sub-system and uses the SCM for its own configuration data purposes. The SDU operates within set frequency bandwidths:  RX range is between 1525 to 1559 MHz  TX is tuned over the range 1626.5 to 1660.5 MHz  TX operational range is between 1631.5 to 1660.5 MHz 2.3.5. Sub-modules Basic Detailed Operation  The Front Panel assembly gives visual indications for system status, external maintenance interface connections and the SDU Person Activated Self Test (PAST) push button  The Backplane assembly makes interconnections between external interfaces and the SDU internal sub-assemblies  The APM provides interfacing to external avionics. It receives aircraft position, speed and heading information from external avionics via ARINC 429 (Aeronautical Radio Incorporated), and updates the CCM with position information every second. The APM manages satellite selection based on aircraft position, and maintains antenna pointing to the wanted satellite beam steering via ARINC 429. The APM manages RF (Radio Frequency) resources and set CCM transmit power levels, taking into consideration antenna gain and cable losses stored within the ORT  The CPM handles and controls all communications interfaces (Ethernet, RS232 and RS422)  The CCM converts user’s input/output data to signals suitable for transmitting and receiving L-Band signals using the satellite link
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 14  The High Power Amplifier (HPA) module amplifies the low level RF signals from the CCM to produce high power output prior to connection to the antenna  The PSM operates from 115 Vac and supplies low level dc power supplies to SRUs within the SDU and 12 Vdc to the SCM  The OCXO provides 10 MHz clock reference signal for the CCM circuit 2.3.6. Operating Environment  Operating temperature: between -15o C (5o F) and +55o C (131o F)  Cooling: Forced air type in accordance with ARINC 600, requiring airflow rate of 50 kg/hr, blowing from top to bottom. Maximum inlet temperature +40o C  Heat dissipation: 220 W (assuming 100% duty cycles with HPA operating at 30 W output 2.3.7. Environmental Conditions The SDU complies with the RTCA/DO-160-E (ED-14E). The environmental qualifications categories complied with, are as per listed in Figure 2-4.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 15 RTCA DO-160E (ED-14E) Environmental Categories 1 Temperature/Altitude A2 2 Loss of Cooling V 3 Temp Var. B 4 Humidity B 5 Shock/Crash E Vibration R 6 Vibration Curve BC 7 Explosion E 8 Waterproof X 9 Fluids X 10 Sand/Dust X 11 Fungus F 12 Salt Fog X 13 Magnetic Effect A Power Input A(WF) 14 Harmonics H 15 Voltage Spike A 16 Conducted Audio R(WF) 17 Induced ZW 18 RF Susceptibility TR 19 RF Emissions M 20 Lightning Induced A3G33 21 Lightning Direct X 22 Icing X 23 ESD A 24 Fire C Figure 2-4: Environmental test categories for SDU & SCM.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 16 2.3.8. Identification Label Figure 2-5 represent the SDU Front Panel Identification Label for detailed description of the numbered field refer to the legend in Figure 2-6. HW PNR Minor Rev. SW PNR TEST SDU SCM Antenna HW PNR 82155X30 SW PNRA TEST PORT DLNA Ext. HPA Ext. BSU Ext. Data Bus ORT/Config. Sat. Link #1 Sat. Link #2 LED INDICATIONS MAY RELATE TOOTHER EQUIPMENT OR AIRCRAFT WIRINGCAUTIONTHIS EQUIPMENTREQUIRES FIELDLOADABLE SOFTWAREENSURE CORRECTSOFTWARE IS LOADEDREFER TO AMMSupply 115VACCSD cmWt. 9.5kg (max)FAA TCFCC idHW DO-254 Level CSW DO-178B Level DDO-160E Env. Cat[(A2)Z]BAE[SC]EXXXFXA[A(WF)]A[R(WF)][ZW][RR]M[A3G33]XXACSATELLITE DATA UNIT (SDU) MFR SER DMF MFR K0385 SER NO DMF INSPECT AMDT A B C D E F G H I J K L S S I 2 123 4 56713 1191011 1 8CAUTION CAUTIONSURFACEHOT16 15 14 Figure 2-5: Example of SDU Front Panel. 17
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 17 SDU Front Panel legend 1 Manufacturer’s Name 2 Hardware Part Number 3 Hardware Minor Revision 4 Software Part Number 5 Manufacturer’s Code 6 Equipment Serial Number 7 Date of Final Factory Inspection (month and year) 8 Amendment Label 9 Inspection Stamp 10 Standalone Identification System 11 Field Loadable Software Warning 12 Voltage Supply, Compass Safe Distance, Weight of Equipment, FCC (Federal Communication Commission) ID, Hardware and Software Compliance references 13 Carrying Handle 14 Hold Down Lugs 15 Ethernet RJ45 Maintenance Connector 16 Status Light Emitting Diodes (LEDs) 17 Push To Test Switch Figure 2-6: SDU Front Panel legend. 2.3.9. Weight and Dimensions  For overall dimensions refer to Figure 2-7  Form Factor: ARINC 600, 6 MCU  Mass: 9.5 kg (21 lb) maximum 2.3.10. SDU Electrical Characteristics  Supply voltage: 100 to 122 Vrms, ac, Frequency Range 360 to 800 Hz  Power consumption: 255 W maximum  RF Power Rating: variable up to 30W for continuous operation  Max Power Rating, Watts: 120W peak RF power 4 channels @ 7.5W each
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 18 Figure 2-7: SDU Overall Dimensions. NOTE: all measurements given are in mm.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 19 Page intentionally left blank
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 20 2.4. Interfaces The SDU interfaces with various aircraft systems. 2.4.1. Aircraft Power Utility Service The TFS interfaces with the aircraft primary power generator as per depicted in Figure 2-8 below. SDUIGADLNAAircraft PowerSupplyBP01BP05BP03115 Vac Cold115 Vac HotChassis Ground115V AC - 5 AMP Type A Circuit Breaker, asper ARINC 781 recommendation.1918 EF115 Vac Cold115 Vac HotSCM SCM Power ReturnPower Source 12 VDC MP01DMP02DA722 Figure 2-8: TFS example of aircraft power distribution diagram. 2.4.2. Avionics interfaces The following avionics interfaces are supported:  Specific to type Cabin Network domain  ADL (Aircraft Data Loader), PDL (Portable Data Loader)  IRS, GPS (Global Positioning System) In order to comply with transmit burst time, INMARSAT requires the SDU to be provided with the aircraft present position within 1500m in three dimensions, referenced to WGS-84 (GPS). In order to comply with this requirement the TFS SDU requires ARINC 429 Nav Data labels as referenced in Figure 2-9. The values apply to aircraft configurations where only on Nav Data bus is connected.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 21 PARAMETER ARINC 429 LABEL Latitude GNSS – Hybrid 254 Longitude GNSS – Hybrid 255 Ground Speed GNSS – Hybrid 175 Track Angle True GNSS – Hybrid 137 True Heading – Hybrid 132 Pitch Angle 324 Roll Angle 325 GNSS Height (HAE) or Hybrid Altitude MSL 370 or 261 GNSS UTC (Binary) 150 GNSS Date 260 GNSS Sensor Status 273 GNSS HDOP 101 Figure 2-9: ARINC 429 Nav Data Labels – Hybrid. 2.4.3. Maintenance Interfaces The SDU supports the following maintenance interfaces:  Aircraft Data Loader (ADL), ARINC 615/615A  Portable Data Loader (PDL), ARINC 615A  Thales Maintenance Terminal NOTE: For more information concerning data loading tools contact the Thales TFS product support representative at the following address: 86 Bushey Road Raynes Park, London SW20 0JW, UK Tel. +44 (0)20 8946 8011 (Switchboard) Tel. +44 (0)20 8946 5169 (Hot desk). 2.5. Configuration Straps In the case of using the mandatory configuration straps the SDU is configurable via the SDU ARINC 600 configuration straps as defined in ARINC 781.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 22 The straps input values will be read only at unit power-up to determine the system configuration. The SDU configuration will be selectable by multiplexing the Configuration Straps inputs with the service availability discrete outputs as per ARINC 781 Attachment 1-4 Note 17. 2.5.1. Mandatory Configuration Pins Pins TP (Top plug) 3D and TP3E must be used on all aircraft installations as they may be used as hardware implemented safety override to force the internal HPA function into low power mode when connected to an external HPA. Pin TP3G must be used on all aircraft installations since one of its functions is to indicate whether all other configuration pins (excluding TP3D, TP3E, TP3F, TP3G, and TP4D) should be used by the SDU. Pin TP4D should be used on all aircraft installations since it indicates the SDU number (1 or 2). Pin TP3F must be used on all aircraft installations since it indicates that the number of all configuration pins (excluding TP3D) including the parity pin itself connected to service availability discrete (or TP3D) is odd. 2.6. SDU Interconnections 2.6.1. ARINC 600 Standard Interwiring Connector The SDU ARINC 600 connector provides:  Input/Output connections  DO160E EMC filtering to input and output interfaces  ESD (Electrostatic Discharge) protection for ATE connections The SDU is provided with a low insertion force, size 2-shell receptacle in accordance with ARINC 600 Attachment 19. This connector accommodates coaxial and signal interconnections in the top plug (TP) insert, Quadrax and signal interconnections in the middle plug (MP) insert, and coaxial, fibre and power interconnections in the bottom plug (BP) insert. The contact arrangements are as follows:  Insert arrangement 08 receptacle in accordance with ARINC Specification 600, Attachment 11 for the top insert (Size 1 Coax cavity and Size 22 Signal sockets)  Insert arrangement 120Q2 receptacle in accordance with ARINC Specification 600, Attachment 20, Figure 20-6.5.5 for the middle insert (Size 8 Quadrax cavities for pin components and Size 22 Signal sockets)  Insert arrangement 12F5C2 receptacle in accordance with ARINC Specification 600, Attachment 19, and Figure 19-49.19 for the bottom insert (Size 12 Electrical pins, Size 16 Electrical pin, Size 5 Coax cavities, and Size 16 Optical cavities).  Index pin code 081 in accordance with ARINC Specification 600, Attachment 18 should be used on both the SDU and the aircraft rack connectors
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 23 2.6.1.1. ARINC 600 Pin Assignment The layout of the rear panel ARINC 600 connector and the Pin assignment are shown in the figures 2-10, 2-11, 2-12, and 2-13. For further Information regarding the ARINC 600 connector refer to Figure 2-15. Figure 2-10: ARINC 600 Connector Layout. Top Plug Middle Plug Bottom Plug Index code 81 (5,2,2) Note: The index code pins dark colour represents the post.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 24 ATE ATEATEATEEmpty Config Config Config SPAREATEPin 1AATEPin 2BPin 3 Pin 4ATEPin 5ATEPin 6ATEPin 7ATEPin 8ATEPin 9ATEPin 10ATEPin 11ATEPin 12ATEPin 13ATEPin 14 Pin 15 Pin 16ATEPin 17ATEPin 18ATEPin 19ATEPin 20Ethernet 1TXAEthernet 1RXAEmptyCavityConfigPin 1ConfigPin 2ConfigPin 3ConfigPin 4SPARE ISDN 1TXAISDN 1RXBEthernet 1RXBEthernet 1TXBCavity Pin 5ConfigPin 6 Pin 7 Pin 8ISDN 1RXAISDN 1TXBEmptyCavityEmptyCavityEmptyCavityConfigPin 9ConfigPin 10ConfigPin 11ConfigPin 12(Spare)SPARE SPARE SPARE12345A B C D G H J K67Empty Config Config Config SPAREEthernet 2TXMCDU 3AEthernet 2RXMCDU 3ACavity Pin 13(Spare)ConfigPin 14(Spare)Pin 15(Spare)Pin 16(Spare)ISDN 2TXAISDN 2RXBEthernet 2RXBEthernet 2TXBEmptyCavityConfigPin 17(Spare)ConfigPin 18(Spare)ConfigPin 19(Spare)ConfigPin 20(Spare)SPARE ISDN 2RXAISDN 2TXBRF TXTo HPA or DLNAE F Figure 2-11: ARINC 600 Connect Arrangement For Top Plug (TP) Insert Figure 2-12: ARINC 600 Connections Arrangement For Bottom Plug (BP) Insert.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 25 Figure 2-13: ARINC 600 Connect Arrangement For Middle Plug (MP) Insert. 2.6.2. Electric Interconnection Diagram The SDU interconnection diagram is given in Figure 2-14. It illustrates all the necessary connection between the SDU and all the other interfaced equipment.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 26 SDU(Notes 1,7,10)AntennaD/LNATP3DTP3EService Availability Discrete 2MP11FConfig Pin 1Config Pin 2Primary Nav Data (A)Primary Nav Data (B)Navigation DataMP02AMP02BAircraftPowerSupplyBP01BP05BP03115 Vac Cold115 Vac HotChassis Ground115V AC - 5 AMPType A CircuitBreaker, as perARINC 781recommendation.1918EF115 Vac Cold115 Vac HotJ10D/LNA BITE Return ClientEthernet PortConnectorEthernet 3 RX (A) Q1Ethernet 3 TX (B) Q1Ethernet 3 TX (A) Q1Ethernet 3 RX (B) Q11T-11T-31T-21T-4SCMData to SCM (B)Data to SCM (A)Data from SCM (B)Data from SCM (A)SCM Power ReturnSCM Power Source MP01DMP02DMP03DMP04DMP05DMP06D 21348153568MP08CMP08DBITE Input Top/Port BSU/Ant (B)BITE Input Top/Port BSU/Ant (A)Multi-Control Output (B)Multi-Control Output (A) MP01EMP01F74(Note 5)(Note 4)(Note 3)22A(Note 6)7NOTE: See Figure 2 -15 for list of Explanatory Notes7Front Panel RJ-45MaintenanceTerminalConnectorTX+TX-RX-RX+RX+TX-RX-TX+ 2163(Note 8)External HPAnot fittedMP8F TX Mute InputSystemFailedIndicationTX MuteARINC 615AData LoaderConnectorTP01ATP01CTP01BTP01D Rear Ethernet RX (A)Rear Ethernet TX (B)Rear Ethernet TX (A)Rear Ethernet RX (B)(Note 11)TX +TX -RX +RX -RX +TX +TX -RX -(Note 12)See Note 1for SignalDetailsMP1G SPAREExternalResetSee Note 13for SignalDetailsSecondary Nav Data (A)Secondary Nav Data (B)Navigation Data(Note 14)MP01JMP01KRX PortTX PortAntenna Port (Note 2)D/LNA BITE H9BD/LNA Control 11TP71SDU RF Output to D/LNASDU RF Input from D/LNA BP07(Note 2) Figure 2-14: TFS System Interconnection Block Diagram – Single Aisle Configuration.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 27 Page intentionally left blank
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 28 ARINC 600 - Shell Size #2 ConnectorView above is looking at the SDU mount connector, Radiall Part Number: 620-600-703.Tray-mount mating half is supplied with all necessary inserts, except 1 x Size 5 Socket Coaxinsert (male centre contact) (Radiall P/No: 620-021), which should be ordered separately. SeeRadiall specification for 620-600-700 for further details on supplied inserts.Fibre inserts are not required and will not be populated on the SDU mount connector, filler plugswill be used to fill cavities. Size 5 Coax insert BP-6 is not required on the SDU mount connectorand will not be populated, a filler plug will be used to fill cavity.Index Code: 81 (5,2,2)(Top Insert: 08 / Middle Insert: 120Q2 / Bottom Insert: 12F5C2)For the index code pins above, the dark colour represents the post.ARINC 600SDU Connectordefined in ARINC 781 - see Note 1ABCDEFGHJ157157ABCDEFGHJABCDEFGHJ14913235678101112141513675429811 1012Index code 81 (5,2,2)71Note 1: System interconnections are as per ARINC781 - refer to ARINC 781 for clarification / further detail.Note 6: Uses “Star-Quad” cable as defined in ARINC 664 Part 2. Cross-over to be provided in cable.Note 7: Pins not required are not listed and should be left ‘Not-Connected’.Note 8: Cross-over to be provided in cable, when using standard RJ-45 Ethernet connections.Note 9: Radiall P/No: 620-600-700 does not include all necessary contacts; 1 x Size 5 Crimp Socket Coaxial Contact must also be ordered: Radiall P/No: 620-021.Note 10: Pigtails for wiring shields/screens are to be made as short as possible to reduce susceptibility to interference.Note 11: Uses “Shielded, Twisted Pair” cable as defined in ARINC 664 Part 2.Note 12: The Maintenance Terminal interface will only be connected during maintenance activities.Note 13: For the External Reset discrete input signal, ground state defined as input voltage less than 3.5V and resistance to airframe dc ground less than 20 mohms. Open state defined as input voltage higher than 14V and resistance to airframe dc ground higher than 100000 ohms.Note 14: A second Nav Data bus might be required for some aircraft installations.PIN No SIGNAL DESCRIPTION 1 +28 Vdc Connection Not Required 2 28 Vdc RTN Connection Not Required 3 Antenna BITE A ARINC 429 from antenna 4 Antenna BITE SCRN Screen for ARINC 429 5 Antenna BITE B ARINC 429 from antenna 6 Antenna Control A ARINC 429 to antenna 7 Antenna Control SCRN Screen for ARINC429 8 Antenna Control B ARINC 429 to antenna 9 D/LNA BITE BITE from D/LNA 10 D/LNA SCRN Screen/RTN for D/LNA 11 D/LNA CTL D/LNA on/off control from antenna 12 Serial SCRN1 Connection Not Required 13 RS422 RXD A1 Connection Not Required 14 RS422 RXD B1 Connection Not Required 15 RS422 TXD A1 Connection Not Required 16 RS422 TXD B1 Connection Not Required 17 ATE Pin Connection Not Required 18 115 Vac Hot Aircraft ac power 19 115 Vac Return Aircraft ac power 20 -- Connection Not Required 21 -- Connection Not Required 22 Chassis Ground Chassis Ground The IGA/HGA Connector is a receptacle -13-35 insert of the MIL-C-38999 Series IIIfamily: D38999/24FC35PN which mateswith D38999/26FC35S on the cable12321201918171615765489101112131422IGA/HGA Power and Control ConnectorNote 4RF Cable LossesNote 2Pin Signal Description1 Data to SDU A (RS422) Data to SDU A2 Data to SDU B (RS422) Data to SDU B3 Data from SDU A (RS422 Data from SDU A4 Data from SDU B (RS422) Data from SDU B5 Reserved – RS232 GND 1Connection Not required6 Spare Connection Not required7 Chassis Ground Chassis Ground8 Power Input +8 to +15V SCM Power Input9 Reserved - Enable RS232 1Connection Not required10 Reserved – 0V strap output 1Connection Not required11 Spare Connection Not required12 Reserved – RS232 Tx 1Connection Not required13 Reserved – RS232 Rx 1Connection Not required14 Spare Connection Not required15 Power Return 0V SCM Power ReturnSCM ConnectorNote 3The SCM connector is a DB15 male connector, mating with a DB-15 femaleconnector on the cable, in accordance with MIL-DTL-24308 (15 pins - gauge 20).Note 5Pin Signal Description Pin A Chassis Ground Chassis Ground Pin B LNA Control LNA Control Pin C Future Spare Connection Not required Pin D Future Spare Connection Not required Pin E 115 Vac Cold Aircraft AC Power Pin F 115 Vac Hot Aircraft AC Power Pin G +28V DC Hot Connection Not required Pin H LNA BITE LNA Bite Pin J LNA BITE Return LNA BITE Return Pin K +28V DC Return Connection Not required The D/LNA Connector is MS3470L1210P whichmates with MS3476L1210S on the cableF E DH A BK J CGD/LNA Power and Control ConnectorNotesThe IGA mount RF connector (J2), the DLNA mount Antenna connector (J1)and the DLNA mount RX (SDU input) connector (J2) are all TNC Jack (female)type connectors.The DLNA mount TX (SDU output) connector (J3) is a N-Type Jack (female)type connector.Size 1 Coax Plug. RadiallP/N: 620 001 (male center contact)Size 5 Coax Plug. Radiall P/N:620 121 (female center contact)See Note 9.Quadrax Insert 2T RF Loss SDU to D/LNA Loss ≤ 1.4 dB D/LNA to Antenna Loss ≤ 0.3 dB D/LNA to SDU 6 dB ≤ Loss ≤ 25 dB Quadrax Insert 1T Figure 2-15: TFS Interconnection Block Diagram – Single Aisle Configuration.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 29 2.6.3. Interconnection Cables 2.6.3.1. RF Coaxial Cables The SDU is connected to the DLNA and Antenna (see Figure 2-14), by means of a RF low loss coaxial cable. The distance between the devices, and the cable selected for the installation must be such that the cable losses remains within the limits indicated within Figure 2-15, Note 2. All coaxial cable should be 50 Ohms nominally. NOTE: Interconnect cables should be routed away from sources of potential electromagnetic interference. Use shielded wires and cables where necessary. 2.6.3.1.1. RF cable characteristics for the SDU to DLNA Tx port Maximum Path Loss Nominal Max Power Frequency Range 1.4 dB (see Note) 60 Watts 1626.5 – 1660.5 MHz 2.6.3.1.2. RF cable characteristics for the DLNA to SDU Rx port Loss Range Nominal Max Power Frequency Range 6 – 25 dB (see Note) 0.5 Watts 1525 – 1559 MHz 2.6.3.1.3. RF cable characteristics for the DLNA to Antenna port Maximum Path Loss Nominal Max Power Frequency Range 0.3 dB (see Note) 46 Watts 1525 – 1660.5 MHz NOTE: Applied to the complete RF cable path and not to each component within the RF path. 2.6.3.2. Power Cables The SDU mains power cable must be able to handle 115 Vac/5A (see note). The recommended size is 20 AWG. NOTE: Switch on surge is approximately 7A for the duration of 200ms. The SDU to SCM power cable must be able to handle 12Vdc. Cable size is 22 AWG. 2.6.3.3. ARINC 429 connections ARINC 429 connection cable must be a size 22 single twisted and shielded pair of wires cable.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 30 2.6.3.4. ETHERNET The recommended Aerospace Grade 100Base-T Ethernet cable is P/N NF 24Q100. The conductor AWG size (19 strands) is size 24. Flammability requirements for this cable meet or exceed FAR25.869 requirements. 2.7. SCM General Description 2.7.1. Hardware The only SCM Part Number available is 82158A Series. This SCM is compatible with the SA SDU Part Number 82155A Series and all other different SDU configurations. The SCM hardware meets RTCA/DO-254 level D requirements. The SCM contains four USIM (Universal Subscriber Identity Module) cards. The SCM also contains an External Configuration Memory (ECM) storing the Owner Requirement Table. 2.7.1.1. External Description The SCM is composed by the following external elements:  The mounting plate with four attaching holes (1)  The 15-way D-type (male) socket (2)  The body of the SCM with one main identification label (3) 321InspectAGBHCIDJEKFLPLAE1SDU CONFIGURATIONMODULE (SCM)MFRSERDMFHW DO-254 Level CPNRMinorREV.SW PNRSupply 12V D.C.CSD 10cmWt. 0.25kg MAXFAA TC xFCC id xxxxxx-xxxxAmdt Figure 2-16: Example of SCM external view.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 31 2.7.1.2. Internal Description The SCM is composed of the following internal parts:  One gasket between the D-type connector and the Body of the SCM (1)  One PEC card with a D-type connector attached (2)  Four USIM cards holders (3)  A plate attached to the body by four screws and washers (4)  A body attached to the single PEC card by four screws and washers (5) 12354CSDU CONFIGURATIONInspectAGBHIDJEKFLPLAE1MODULE (SCM)MFRSERDMFHW DO-254 Level CPNRMinorREV.SW PNRSupply 12V D.C.CSD 10cmWt. 0.25kg MAXFAA TC xFCC id xxxxxx-xxxxA Figure 2-17: SCM exploded view.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 32 2.7.2. ORT Parameters The ORT is represented by a database containing a set of configuration data for the exclusive use of the SDU. The ORT is partitioned for two types of parameters in accordance with ARINC 781:  User parameters, for operator use  Secure parameters, for aircraft specific configurations The ORT parameters are stored within the SCM and SDU, and are used to customise the operation of the TFS system, allowing various preferences to be set to enable the efficient use of the equipment within different platform configurations. The SDU and SCM are delivered with a default ORT. 2.7.3. ORT Synchronisation At each power up the SDU reads the ORT from the SCM, and compares it with its locally stored copy. In normal condition the SDU and SCM ORTs should be the same, but if different the SDU overwrites its local copy with the ORT read from the SCM. The SDU uses that ORT until the SDU is powered down. The SDU stores the local copy of the SCM Secure and User ORTs over a power down in case one of the ORTs from the SCM is not valid when the SDU next powers up. NOTE: For more information concerning the operation of the SDU when it determines that an ORT is not valid refer to the ARINC 781 specification section 3.4.2 ‘Configuration & Identification Data’. NOTE: For more information concerning changes or updates regarding ORT contact the Thales TFS product support representative. 2.7.4. Basic Operation When operating, the SCM interfaces with the SDU CCM via the SDU CPM. The SCM operation will not commence until an input voltage from the SDU is detected. Alternatively, when removed form the aircraft the SCM will also acknowledge an input voltage from a personal computer (PC), and will operate as if it were connected to an SDU. A single USIM card is required for each Swift Broadband channel operated by the SDU. The SCM contains an External Configuration Memory (ECM). The ECM is a non-volatile memory, which stores the ORT database.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 33 2.7.5. Environmental Condition Refer to Table 2-4. 2.7.6. Identification Label The main manufacturer label gives the following information (Figure 2-18):  HW PNR: Equipment part number in alphanumeric form and bar code form  Minor rev: Minor revisions  SW PNR: For Owner Requirement Table (ORT)  MFR: Manufacturer code in alphanumeric and bar code form  SER: Basic part number and serial numbering alphanumeric and barcode from.  DMF: Date of final factory inspection (month and year)  Amdt: Amendments  CSD: Compass Safe Distance  Wt: Weight  FAA TC: Federal Aviation Administration Type Certificate  FCC id: Federal Communications Commission identification PNRMinorREV.SW PNRSupply 12V D.C. HW DO-254 Level DCSD 10 cmWt. 0.25 kg MAXFAA TC xFCC id xxxxxx-xxxxSDU CONFIGURATIONMODULE (SCM)MFRSERDMFINSPECTABCDEFLKJIHGPLAE1Amdt Figure 2-18: Example of SCM Identification Label. 2.7.7. SCM Electrical Characteristics  Power input: 8 to 15 Vdc. SDU typical supplied voltage 12 Vdc  Power consumption: 3.6 W or less  Max current: 300 mA at 12 Vdc 2.7.8. Weight and Dimensions  For overall dimensions refer to Figure 2-19  Mass = 0.25kg (0.44Lbs)
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 34 83.813.11106.1 88.91011. 522.5InspectAGBHCIDJEKFLPLAE1SDU CONFIGURATIONMODULE (SCM)MFRSERDMFHW DO-254 Level CPNRMinorREV.SW PNRSupply 12V D.C.CSD 10cmWt. 0.25kg MAXFAA TC xFCC id xxxxxx-xxxxAmdt Figure 2-19: SCM Overall Dimensions. NOTE: All measurements given in Figure 2-19 are in mm. 2.7.9. SCM Connector The SCM connector is a DB15 (15 pins – gauge 20) male connector (see Figure 2-20 below), mating with a DB-15 female connector on the cable. For complete description of Pin Assignment refer to Figure 2-15, Note 3. Figure 2-20: Front View of the 15 Pin D-Type Connector. Chassis Stud (GND Bonding)
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 35 2.7.10. Equipment Electric Interconnection Diagram The SDU interconnection diagram is given in Figure 2- 21 below. The diagram illustrates all the necessary connection between the SCM and the SDU. For description of detailed pin-to-pin connection refer to Figure 2-14 and 2-15. SCM15 way D-type connector (PL1)SDURS422_Tx_A0V+12VRS422_Rx_ARS422_Rx_BRS422_Tx_B Figure 2-21: SDU/ SCM Interconnection Diagram. _
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 36 3. INSTALLATION GUIDELINES 3.1. Introduction The SDU and SCM should be installed in the aircraft in a manner consistent with acceptable workmanship and engineering practices, and in accordance with the instructions set forth in this manual. To ensure that the system has been properly and safely installed in the aircraft the installer should make a through visual inspection and conduct an overall operational check of the system on the ground prior to commissioning to the Customer and or a flight. NOTE: Before installing any components or cabling, read all notes contained within drawings. 3.2. Interchangeability The SDU and SCM will operate in any installation that complies with ARINC 781. Therefore, the SDU and SCM are interchangeable only with identical system components as covered in this manual. 3.3. SDU / SCM Location and Accessibility Guidelines Where possible the SDU should be installed in a pressurized zone that is also partially temperature controlled, and mounted on an appropriate ARINC 600 compliant mounting rack. The SDU requires external forced air-cooling. The SCM should be installed as close to the SDU as possible in order to keep the cable runs to a minimum. To determine the best location, the installer must select equipment locations to allow easy access to these components and their connectors. Equipment location will vary with aircraft type and design/installation specifications. The electronic bay, and the cabin hat rack are suitable places to install this unit. The SDU must be installed in a location that allows the following facilities to be accessible:  Front Panel LEDs  Front Panel TFS system Test Push Button  Software loading RJ45 connector CAUTION BEFORE EQUIPMENT INSTALLATION ENSURE THAT THE AIRCRAFT POWER SUPPLY CIRCUIT BREAKER IS POSITIONED IN THE OFF CONDITION.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 37 3.4. Mounting Tray The mounting tray used for the installation of the SDU must comply with the design specifications for the 6 MCU (Modular Concept Unit) form factor. Refer to the ARINC 600 Specification for detailed information regarding the design of compatible equipment and airframe installations. Figure 3-1: Example of an ARINC 600, 6 MCU Mounting Tray. 3.5. Cooling The SDU is designed to accept an installation configuration able to provide forced air-cooling as defined in Section 3.5 of the ARINC Specification 600. In normal operation the SDU will be cooled by forced convection with air supplied from the platform services at a maximum flow rate of 50 kg/hr and a temperature of up to 400 C. The cooling air will enter the equipment chassis at the bottom via a plenum chamber and exhaust at the top. 3.6. Power Requirements It is the responsibility of the installer to select the appropriate gauge of wire for power connections, and to ensure that the required safety and voltage drop requirements are complied with. For SDU power supply specifications refer to:  2.3.10: ‘SDU Electrical Characteristics’  Figure 2.8: ‘ Aircraft Power Distribution’  Figure 2-14: ‘TFS System Interconnection Diagram’ For SCM power supply specifications refer to:  2.7.8: ‘SCM Electrical Characteristics’  Figure 2-14: ‘TFS System Interconnection Diagram’
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 38 3.7. SDU RF Connections The SDU is connected to the DLNA through a RF coaxial cable. Installation designer must be aware that the shorter the cable is, the better system performance. As the SDU/DLNA low loss cable is sometimes almost rigid and it could have a diameter not compatible with the IGA and DLNA connectors, it is recommended to install a short portion of a smaller and more flexible cable at each end of this low loss cable (pig tail type installation). If necessary, secure the cable by means of evenly spaced collars to prevent the cable from chafing on aircraft parts and surfaces. These collars must be of a design, which avoids damaging the cable. CAUTION DO NOT EXCEED MINIMUM CABLE RADIUS OF CURVATURE FOR THE COAXIAL CABLE. USE DUMMY CABLES FOR A FIRST INSTALLATION TO DETERMINE CABLE RUNS. INSTALL FINAL CABLES ONLY AFTER THIS MODELING OPERATION. CAUTION ONLY PREFORMED RF CABLES SHALL BE CONNECTED TO THE SATCOM SYSTEM EQUIPMENT. ATTEMPTING TO FORM CABLES OR APPLYING STRESS TO THE CABLES WHILE THEY ARE CONNECTED TO THE EQUIPMENT CONNECTORS MAY CAUSE DAMAGE TO THE EQUIPMENT. NOTE: Interconnect cables should be routed away from sources of potential electromagnetic interference. Use shielded wires and cables where necessary. 3.7.1. RF Insertion Losses The SDU RF interface with the Antenna via a DLNA device. The diplexer and LNA are combined into one unit for installation. The Diplexer function couples transmit signals from the SDU to the respective antenna. The LNA amplifies the very low level L-band receive signal from its respective antenna and couples this amplified signal to the SDU. For detailed RF insertion losses refer to Figure 2-15 Note 2. To ensure these requirements are met, some installations need the SDU to be installed in close proximity to the antenna subsystem components or the use of low loss coaxial cable. The total loss between the DLNA and the SDU must be in the range 6 to 25 dB. If the RF cable type being used for a short cable length is less then 6 dB, an attenuator must be fitted to ensure the required loss is achieved. 3.7.2. VSWR The Voltage Standing Wave Ratio (VSWR) of all RF cables should be 1.2:1 or better.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 39 3.8. Bonding Requirements The bonding of all LRUs to the airframe must not exceed 20 milliohms. However some aircraft manufacturers or design/installation organisation may require a lower value than the recommended 20 milliohms. 3.9. SDU Fitting Instructions Unpack the SDU from the transportation packaging. Perform a visual inspection of the unit for evidence of damage incurred during transportation. If a claim for damage is to be made, save the shipping container to substantiate the claim, and contact your Thales representative. Remove the ESD protection cap on the ARINC 600 connector. CAUTION THE SDU IS ELECTROSTATIC DISCHARGE SENSITIVE EQUIPMENT. OBSERVE STANDARD ESD PROCEDURES WHEN HANDLING THE EQUIPMENT. Ensure that the electrical supply to the mounting tray back connector is removed. Carefully place the SDU on its mounting tray and slide it towards the mounting tray back connector, following the direction of the arrow indicated in figure 3-3. When the SDU is fully engaged into the connector raise the mounting tray Hold Down Clamps (see Figure 3-3), over the hooks of the SDU and hand tight in the clockwise direction. As the LRU is tightened into position, and in order to prevent electrical pins from bending, ensure that the SDU is uniformly inserted into the mounting tray back connector. Figure 3-3: SDU Installation on to ARINC 600 Mounting Tray. CAUTION ENSURE THAT THE THUMBSCREW HOLD DOWN CLAMPS HAVE BEEN FASTENED, AND THAT THE LRU IS SECURELY HELD INTO PLACE. SDU installation direction Hold Down Clamps
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 40 3.10. SDU Removal Instructions Ensure that the electrical supply to the mounting tray back connector is removed. Loose mounting tray Hold Down Clamps (counter clockwise). Ensure that the Hold Down Clamps are loosened so that the SDU is uniformly extracted out of the mounting tray back connector. Clear the retaining hooks on the front of the SDU. Separate the SDU from the mounting tray back connector and extract the SDU by pulling on the carrying handle at the front of the SDU following the direction of the arrow indicated in Figure 3-4. Install an ESD protection cap on the SDU ARINC 600 back connector. Figure 3-4: SDU Removal from ARINC 600 mounting tray. 3.11. SCM Fitting Instructions Unpack the SCM from the transportation packaging. Perform a visual inspection of the unit for evidence of damage incurred during transportation. If a claim for damage is to be made, save the shipping container to substantiate the claim, and contact your Thales representative. Remove the ESD protection cap on the D Type connector. CAUTION THE SCM IS ELECTROSTATIC DISCHARGE SENSITIVE EQUIPMENT. OBSERVE STANDARD ESD PROCEDURES WHEN HANDLING THE EQUIPMENT. Place the SCM to the dedicated mounting fixture and insert the four (1) fixing screws to finger tightness only. See Figure 3-5. After all four fixing screw have been inserted tight the screws with an appropriate tool. Insert the cable from the SDU to the D Type connector (other half from the SDU) and tighten the aircraft mating connector into the two (2) female screw locks. SDU removal directionHold Down Clamps
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 41 Figure 3-5: SCM Installation. CAUTION ENSURE THAT THE FIXING SCREWS HAVE BEEN FASTENED, AND THAT THE LRU IS SECURELY HELD INTO POSITION. 3.12. SCM Removal Instructions Ensure power to the SDU is disconnected. Loosen the two (2) screw locks that secure the 15-pin D Type connector to the SCM. See Figure 3-6. Disconnect the D connector. Bag and stow the cable as required. Install an ESD protection cap on the SCM D Type connector. Assuming that the mounting fixture is equipped with anchor nuts, loosen and remove the four fixings screws that retain the SCM to its mounting fixture while supporting the SCM. Retain the screws for future installation. Remove the SCM, and visually inspect it for any signs of damage. Figure 3-6: SCM Removal. Fixing Screws (4 off) D Type Connector (3) Fixing Screw (1) Screw locks (2)
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 42 4. INSPECTION AND SYSTEM CHECKOUT 4.1. Inspection/Check procedure Table 4.1 below provides a visual inspection/check procedure that should be performed during or after the SDU/SCM installation, or as a periodic maintenance inspection check of the installation. EQUIPMENT INSPECTION/CHECK PROCEDURE Wiring and RF cables • Ensure that a continuity check of all the installation wiring harness had been carried out, and that all the sources are correctly rated on the correct pins • Check that none of the cables have been damaged, and cannot be damaged by components that are installed later • Check that the cable runs are spaced away from any moving or hot part that could damage cables when in use • Verify that the various RF cables are within their minimum radius of curvature tolerances • Check that any attenuators that may have been used for the installation have not been omitted or mismatched SDU • Examine the assembly for external condition (absences of fractures, dents, deformations, cracks, and/or any other abnormal damage) • Check that the unit is properly installed and that hold down clamps are firmly tightened • Check screws and nuts general condition • Check that the contact resistance between the SDU/SCM and a point on the aircraft structure close to the component does not exceed 20 milliohms • Check that the correct air cooling and air flow is provided to the SDU SCM • Examine the assembly for external condition (absences of fractures, dents, deformations, cracks, and/or any other abnormal damage) • Check that the unit is properly installed, that all fixing screws are firmly tightened, and the cable to the SDU is secure Table 1: Installation Inspection/Check procedure. 4.2. System Checkout At this stage of the installation it is assumed that a continuity check of the wiring has been made, a visual check of the installation harness and RF cabling has been performed, and that the inspection/check procedure has been carried out.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 43 4.2.1. Post-installation Test This test requires that all the Satcom system LRUs (SDU, SCM, DLNA, Antenna) be connected and operating properly, with a means of displaying any system faults detected by the LRUs during the BITE (Built In Test Equipment) test. The results of the test are indicated on the SDU front panel LEDs. Refer to the Testing and Fault Isolation section for information on the SDU fault detection capabilities. If no system faults are indicated by the BITE test, then the subsystem installation should be considered acceptable. If any subsystem LRU fails the test, it must be returned to the vendor (refer to your vendor customer support). WARNING THE RF POWER RADIATED BY THE TFS SYSTEM ANTENNA CAN CAUSE BODILY HARM. A PERSON IS IN DANGER IN A ZONE WHERE THE POWER FLUX IS 1 MW/CM2, OR GREATER. DURING SATCOM OPERATION THE SAFETY DISTANCE FROM THE ANTENNA MUST BE NO LESS THAN 3.5M OR 12 FEET (INTERMEDIATE GAIN ANTENNA). SINCE THERE ARE VARIOUS POSSIBLE ANTENNA LOCATIONS, IT IS THE RESPONSIBILITY OF THE OPERATOR TO DETERMINE THE AREA OF HAZARD FOR THEIR TFS SYSTEM CONFIGURATION AND TO TRAIN PERSONNEL IN GROUND SAFETY PROCEDURES. WARNING DURING ANTENNA OPERATION (TRANSMISSION), ENSURE MINIMUM EXPOSURE OF ALL PERSONNEL TO ANY REFLECTED, SCATTERED, OR DIRECT BEAMS. CAUTION WHEN TESTING THE COMPLETE TFS SYSTEM (ANTENNA SYSTEM INCLUDED) REFER TO THE SPECIFIC ANTENNA IMM FOR FURTHER SAFETY REQUIREMENTS AND SPECIFICATIONS. THE SDU MUST NOT BE POWERED WITHOUT AN ANTENNA OR SUITABLE LOAD CONNECTED ON THE HIGH POWER TRANSMIT OUTPUT PORT. CAUTION NEVER CONNECT OR DISCONNECT A SATCOM LRU WHEN POWER IS APPLIED, IN ADDITION, NEVER APPLY HIGH-LEVEL RF SIGNAL TO A POWERED-DOWN LRU. CAUTION ENSURE THAT THE APPROPRIATE ORT DATABASE IS INSTALLED IN THE SCM AND/OR SDU BEFORE PERFORMING SYSTEM OPERATIONS.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 44 5. MAINTENANCE 5.1. Introduction Field lubrication or other maintenance procedures are not required. The design of the SDU and SCM is such that they do not require field maintenance to maintain airworthiness. If functional problems occur, the SDU Built-in-Test Equipment (BITE) capability identifies the faulty LRU. The SDU and SCM maintenance is limited to replacement on verified failure. CAUTION TO AVOID INJURY TO PERSONNEL OR DAMAGE TO EQUIPMENT, ENSURE ADEQUATE PRECAUTIONS ARE TAKEN WHILE PERFORMING ANY WORK IF THE ELECTRICAL POWER IS APPLIED TO THE LRUs. CAUTION TO PREVENT DAMAGE TO EQUIPMENT, TURN AIRCRAFT POWER OFF BEFORE REMOVING OR INSTALLING LRUs. 5.2. Cleaning of Mechanical Parts Equipment chassis covers give the necessary protection to keep dust away from electronic circuits. If cleaning is required this has to be limited to the removal of particles of dust, oil, grease, condensation, etc and only limited for those equipment accessible parts. Before any cleaning action is carried out ensure that the equipment is disconnected from all electrical power sources, and all the necessary ESD precautions are observed. For mechanical part cleaning:  For dust removal use a cleaning wipe, a silk paintbrush or low-pressure compressed air  For removal of finger marks, grease, etc, clean the parts with a cleaning wipe and isopropyl alcohol, exercising care to not damage information labels CAUTION MOISTURE AND DIRT CAN CAUSE DAMAGE TO EQUIPMENT. 5.3. Periodic Checks See Inspection/ Check procedure in Table 1. 5.4. Cabling and Connections Periodically check cable connectors (recommended) and if required, tighten connectors as needed with connector manufacturer’s specifications.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 45 6. TESTING AND FAULT ISOLATION Information within this section describes how the TFS system, SDU, SCM, and Antenna failures are monitored detected, and reported. 6.1. BITE Function The primary purpose of BITE is to assist aircraft maintenance personnel in the correct maintenance of avionics equipment in a cost effective manner. The BITE does not contribute to the required function of the TFS system, but makes it easier to test or debug it. The SDU controls the TFS system BITE. It collects BITE information from other LRUs, and can request other LRUs to run tests. The BITE automatically detects failures, providing a mechanism to discover erroneous behaviour of TFS system components. Fault information is reported to a local maintenance system (e.g. CFDS system or other OMS), and this information is made available to maintenance personnel by means of discretes and/or LEDs on the SDU front panel. Failures can also be reported to a dedicated local maintenance function through SNMP (Simple Network Management Protocol) and the MIB (Management Information Base). The System BITE failure data is stored in the SDU within a Non-Volatile Memory (NVM) area. The BITE operates at various levels as indicated in Figure 4-1 below. Figure 6-1: Example of BITE communication for TFS system.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 46 6.2. Test Functions An operator can verify the operational serviceability of the SDU and SCM by means of a set of testing facilities installed within the SDU. The SDU performs two distinctive types of test:  A Power On Self-Test (POST) is automatically activated at SDU start up  A Person Activated Self Test (PAST) can be initiated by an operator by depressing a Self-Test push button located on the front panel of the SDU, (see Figure 2-5 item 17) 6.2.1. POST At SDU start up (Power On), and with aircraft in the ‘on ground’ condition the FPL (Front Panel LEDs) will display the following test sequence: Apply power Start All LEDs illuminate Amber for approximately 90 seconds LEDs flash Green for approximately 3-5 seconds LEDs remain in Off condition for the duration of approximately 75 seconds LEDs driven to indicate a steady Green condition Figure 6-2: POST LEDs sequence.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 47 6.2.2. PAST The PAST function is initiated by depressing the front panel Test Button (This function is only possible with aircraft on ground). To acknowledge PAST initialisation all the front panel LEDs start to flash green at the frequency of 2Hz. After approximately 75 seconds the SDU will transit into Operational Mode with the LEDs displaying the TFS system serviceability condition. This feature represents an interactive, manual test facility, which assists in the following:  Active search of failures by triggering a series of system diagnostic tests  Verification testing e.g. after the installation of a replacement unit  Failure confirmation purpose NOTE: PAST test can only be initiated after the POST test has completed. Push frontpanel TestButtonAll LEDs extinguish andremain in Off condition forapproximately 90 secondsStartLEDs flash Green for 3-20secondsLEDs driven to Indicate a steady Green conditionTime variations aredue to ORT synchronisation Figure 6-3: PAST LEDs sequence.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 48 6.3. Fault Isolation 6.3.1. Failures Failures are reported to an operator by means of a set of multicoloured LEDs located on the SDU front panel. LEDs can enter the following steady states:  Normal equipment operation indicated by the relevant LEDs displayed in a steady Green condition  Equipment Hard Failures are indicated by all relevant LEDs displayed in a steady Red condition  Partial equipment failures are indicated by all relevant LEDs displayed in a steady Amber condition  An LED in OFF (extinguished) condition indicates that the relevant equipment and or a resource is not active or not installed 6.3.2. Front Panel Indications Table 2 provides LED status decoding information.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 49 LED Name Flashing Green Steady Green Amber Red Off SDU SDU in Self-Test SDU OK Partial Failure (Not Indicted)1 or ARINC 429 / AFDX / RS-422 Bus Failure3 SDU Failed (Indicted)2 SDU Not Powered SCM SDU in Self-Test SCM/USIM(s) OK SCM Memory Fail (Not Indicted)1 or RS-422 Bus Failure3 USIM Read/Write Fail. No attempt at SBB registration SCM Not Installed or SDU Not Powered Antenna SDU in Self-Test Antenna OK Partial Failure (Not Indicted)1 or ARINC 429 Bus Failure 3 Antenna Failed (Indicted) 2 SDU Not Powered DLNA SDU in Self-Test DLNA OK N/A DLNA Failed (Indicted)2 SDU Not Powered Ext. HPA SDU in Self-Test NA NA NA NA Ext. BSU SDU in Self-Test NA NA NA NA Ext. Data Bus SDU in Self-Test All Data Buses (ARINC 429 / AFDX / RS-422) OK Nav Data not available. ARINC 429 Bus from IRS(s) inactive or IRS Data invalid 4 Bus Failed3 (ARINC 429 / AFDX / RS-422) SDU Not Powered ORT/Config. SDU in Self-Test ORT(s)/Hardware Configuration Straps ORT Minor Failure5 (Not Indicted)1 ORT Major Failure6 or Hardware Configuration Straps Parity Failure (Indicted)2 SDU Not Powered Sat. Link #1 SDU in Self-Test Channel #1 Service Available, ie Logged-On or Registered Channel #1 attempting Log-On or Registration N/A Channel #1 Not attempting Log-On or Registration7 Sat. Link #2 SDU in Self-Test Channel #2 Service Available, ie Logged-On or Registered Channel #2 attempting Log-On or Registration N/A Channel #2 Not attempting Log-On or Registration7 NOTE: See next page for list of Explanatory Note.Table 2: Front Panel indications.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 51 List of Explanatory Notes for Table 2 1. Not Indicted means that there is an equipment ‘partial’ failure such that service Registration / Log-On is still attempted. 2. Indicted means that there is an equipment failure such that Registration / Log-On is not attempted. 3. In the event of a Bus Inactive Failure, the ‘Data Bus’ LED illuminates Red and the appropriate LRU status LEDs illuminate Amber, e.g. if the SDU reports that the Antenna to SDU bus is inactive or the Antenna reports that the SDU to Antenna bus is inactive, then the ‘Data Bus’ LED illuminates Red and the SDU and Antenna LEDs illuminates Amber. 4. This is a special case. There will be frequent legitimate occurrences of IRS(s) being switched off whilst On-Ground and even after an IRS is switched on; there is an alignment period, during which the Nav Data is invalid. Under these circumstances, the only action is to illuminate the ‘Data Bus’ LED Amber, irrespective of whether in On-Ground or In-Air state. 5. The ORT/Configuration LED illuminate Amber in the following circumstances: a. Type 1 ORT Synchronization Minor Failure – Secure ORT within SCM - If the Secure ORT read from the SCM is not valid and if ‘local copy’ Secure ORT is valid. b. Type 4 ORT Synchronization Failure - User ORT within SCM - If the User ORT read from the SCM is not valid AND if ‘local copy’ User ORT is valid. c. Type 5 ORT Synchronization Failure - User ORT in SDU - if SDU User ORT is invalid. 6. The ORT/Configuration LED illuminates Red in the following circumstances: a. Type 1 ORT Synchronization Major Failure - Secure ORT within SCM - If the Secure ORT read from the SCM is not valid AND if ‘local copy’ Secure ORT is not valid. b. Type 2 ORT Synchronization c. Type 3 ORT Synchronization Failure - Secure ORT in SDU that is integral part of SW - if SDU Secure ORT is invalid. d. Hardware Straps Parity Failure. SDU be indicted. 7. There are many reasons why a channel will not attempt Log-On or Registration, including (but not limited to), OCXO warming up, equipment indictment, commanded Log-Off or De-Registration.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 52 6.3.3. Fault Logging All information of degraded and abnormal equipment function will be logged internally and made available to a dedicated local maintenance system (e.g. CFDS). 6.3.4. Service Availability Discretes The status of various system functions can be reported by means of the Service Availability Discretes available on the ARINC 600 connector. Function Pin Allocation Steady State Open Circuit Steady Ground1 SDU Not Powered MP 15F SDU Powered SDU Not Powered System Failed MP 11F System OK System Failed2 SDU Failed MP 12E SDU OK SDU Failed3 SCM Failed MP 12F SCM OK or not installed SCM Failed4 Ext HPA Failed MP 13E Ext HPA OK or not installed Ext HPA Failed DLNA Failed MP 13F DLNA OK DLNA Failed Antenna Failed MP 14E Antenna OK Antenna Failed Ext BSU Failed MP 14F BSU OK or not installed BSU Failed Bus Failed5 MP 15E All external data buses OK (ARINC 429/AFDX/RS422) Bus Failed (ARINC 429/AFDX/RS422) Sat Link #1 Not Available MP 11E Satcom Channel #1 Logged On/Registered Satcom Channel #1 Not Logged On/Not Registered Sat Link #2 Not Available TP 01K Satcom Channel #2 Logged On/Registered Satcom Channel #2 Not Logged On/Not Registered Table 3: SDU Service Availability Discretes.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 53 List of Explanatory Notes for Table 3 1. The ‘Steady Ground’ state corresponds to the equivalent LED Red state, except for the Sat Link #1 and #2 Not Available discretes, for which the ‘Steady Ground’ state corresponds to the equivalent LED Off or Amber states. 2. The System Failed discrete ‘Steady Ground’ state corresponds to one or more LEDs being illuminated red. 3. SDU Failed discrete only to be asserted in the event that an SDU H/W or S/w failure is detected, not in the event that there is an ORT or configuration straps parity failure. In the latter case, only the System Failed discrete should be asserted. 4. SCM Failed discrete only to be asserted in the event that an SCM H/W failure is detected, not in the event that there is an ORT failure. In the latter case, only the System Failed discrete should be asserted. 5. The Bus Failed discrete provides no indication of activity on the Ethernet buses. 6.3.5. Service Availability Discrete Lamps The Service Availability Discretes have open circuit and ground states that are capable of driving incandescent lamps connected to an external supply. Typically, each discrete is fed via one or two (in parallel) incandescent lamps to an aircraft 28 Vdc supply. This 28 Vdc supply can be dimmed to approximately 14 Vdc for night time operation. The 28 Vdc is a nominal value and can vary as defined in RTCA/DO-160E. A typical incandescent lamp would be 28Vdc, 20mA. Each Service Availability Discrete is able to continuously sink at least 50mA and be capable of holding a cold inrush current of up to 490 mA during the first 10 millisecond of activation as per ARINC 781.
Issue 2 TopFlight Satcom SDU & SCM Installation and Maintenance Manual Ref: TFS062/J-03/003 © THALES AVIONICS Ltd. This document and any information included are the property of Thales Avionics. They cannot be reproduced, disclosed or utilized without the company’s prior written approval. 54 7. INSTRUCTIONS FOR CONTINUED AIRWORTHINESS Maintenance requirements and instructions for continued airworthiness of the TFS SDU and SCM components are contained in the paragraphs that follow. Installation of SDU and SCM on an aircraft by an amendment to the Type Certificate (TC), Supplemental Type Certificate (STC) or Form 337 obligates the aircraft operator to include the maintenance information supplied by this manual (and listed below) in the operator’s Aircraft Maintenance Manual and the operator’s Aircraft Scheduled Maintenance Program.  Maintenance information for SDU and SCM, TFS LRUs (system description, removal, installation, testing, etc.)  The part numbers (see section 2) of the LRUs being installed (SDU and SCM) should be placed into the aircraft operator’s appropriate aircraft Illustrated Parts Catalogue (IPC).  Wiring connection information contained in this manual (see sections 2 and 3) should be placed into the aircraft operator’s appropriate Wiring Diagram Manual.  The SDU maintenance is considered as an “On-condition”, and as such no additional maintenance is required other than a check for security and operation at normal inspection intervals.  The SCM equipment is subject to minimal preventative maintenance, which is specific to life limitations associated to the internal USIM cards. For further details refer to your Thales representative.  If a system LRU is inoperative remove the specific unit, secure cables and wiring, collar applicable switches and circuit breakers, and placard them inoperative. Revise equipment list and weight and balance as applicable prior to flight and make a log book entry that the unit was removed (refer to section 91.213 of the FAR or the aircraft’s Minimum Equipment List (MEL).  SDU and SCM can be repaired by an Approved Maintenance Organization  Once repaired, reinstall the LRU in the aircraft in accordance with the original Form 337 approved data or instructions in this manual. Perform a Return to Service test of the system and approve it for return to service with a logbook entry required by section 43.9.

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