ARINC 781-200 SDU and SCM System Description, Installation, and Maintenance Manual MN-0000243, Revision 1.0 This document provides procedures for the equipment listed below.
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SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM TABLE OF CONTENTS INTRODUCTION 1. Illustration of Equipment ............................................................................. INTRO-1 2. Acronyms and Abbreviations ..................................................................... INTRO-2 3. Safety Advisories ......................................................................................... INTRO-4 SYSTEM DESCRIPTION 1. Inmarsat System Overview.......
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM 2. Using the A781-200 System ................................................................................. 2-2 A. Operating the MCDU ....................................................................................................... 2-2 (1) Screen.......................................................................................................................... 2-2 (2) Keyboard..................................
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM B. Cabling Notes .................................................................................................................. 3-1 3. Installation Procedure........................................................................................... 3-2 4. Connection Details................................................................................................ 3-2 A. SDU .........................................
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM F. RF Path Status ............................................................................................................... 4-13 G. USIM and Data Bus Status ............................................................................................ 4-14 H. ORT ............................................................................................................................... 4-15 (1) Checking the ORT.......
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM LIST OF FIGURES Figure INTRO-1 Satellite Data Unit ....................................................................................INTRO-1 Figure INTRO-2 SDU Configuration Module ......................................................................INTRO-2 Figure 1-1 Simplified Aeronautical Satellite Communications System ........................................ 1-2 Figure 1-2 A781-200 Avionics System ...................
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 4-2 SATCOM Subsystem Health Menu ............................................................................ 4-8 Figure 4-3 SATCOM System Bus Menu ...................................................................................... 4-9 Figure 4-4 SATCOM Overtemp Menu ....................................................................................... 4-11 Figure 4-5 SATCOM SCM Menu ..............................
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM LIST OF TABLES Table 1-1 SDU Physical Characteristics and Specifications....................................................... 1-4 Table 1-2 SCM Physical Characteristics and Specifications ...................................................... 1-5 Table 1-3 ARINC 781-200 SDU and SCM RTCA/DO-160E Environmental Characteristics ...... 1-6 Table 1-4 SDU System Interfaces .........................................................
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Table 4-15 SATCOM USIM/DATA Menu..................................................................................
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM INTRODUCTION This manual provides the specifications, principles of operation, and information necessary to install the ARINC 781-200 Avionics SATCOM System, including the Satellite Data Unit (SDU) and SDU Configuration Module (SCM).
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure INTRO-2 shows the SCM. Figure INTRO-2 SDU Configuration Module 2.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM FMS Flight Management System GES Ground Earth Station GND Ground HGA High Gain Antenna HPA High Power Amplifier ICA Instructions for Continued Airworthiness ICAO lnternational Civil Aviation Organization I/O Input/Output IOR Indian Ocean Region IRS Inertial Reference System ISDN Integrated Services Digital Network LES Land Earth Station LRU Line Replaceable Unit MCDU Multi-purpose Control Display U
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM STC Supplemental Type Certificate Tx Transmit USIM Universal Subscriber Identity Module UUT Unit Under Test VSWR Voltage Standing Wave Ratio 3. Safety Advisories Warnings, cautions, and notes in this manual provide the reader with the following information: • A WARNING describes an operation, procedure, or condition that, if not obeyed, could cause injury or death.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM DEVICES IS THE HUMAN BODY, WHICH, IN CONJUNCTION WITH NONCONDUCTIVE GARMENTS AND FLOOR COVERINGS, GENERATES AND RETAINS STATIC ELECTRICITY. TO ADEQUATELY PROTECT ESDS DEVICES, THE DEVICE AND EVERYTHING THAT CONTACTS IT MUST BE BROUGHT TO GROUND POTENTIAL BY PROVIDING A CONDUCTIVE SURFACE AND DISCHARGE PATHS.
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SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM SYSTEM DESCRIPTION This section includes basic information about the A781-200 system, including the following sections: • Inmarsat System Overview • Equipment Overview • Equipment Specifications • System Interfaces • User Interfaces • Software Description 1. Inmarsat System Overview This section provides an overview of the Inmarsat satellite communications system and networks.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM I-4 satellites provide worldwide SwiftBroadband (SBB service). Each I-4 satellite has 19 wide spot beams, 228 narrow spot beams, and is capable of accommodating many separate, simultaneous SBB sessions. The SBB service and I-4 satellites support broadband applications.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM • Classic Aero-H+—Provides packet data services at 600 bps, 1200 bps, or 10500 bps over the PRT channel combination and half-rate circuit switched voice or data service over the C channel. • Swift 64—Provides packet switched Mobile Packet Data Service (MPDS) or 64kbps circuit-switched Unrestricted Digital Information (UDI).
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM By storing configuration information independent of the SDU, the SCM facilitates efficient SDU replacement. A new SDU that replaces a faulty SDU does not require any configuration. All configuration information is obtained from the SCM. 3. Equipment Specifications This section includes the physical and environmental characteristics of the A781-200 SDU and SCM.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Table 1-1 SDU Physical Characteristics and Specifications (Continued) SPECIFICATION CHARACTERISTIC Electrical Interfaces Power/Control interface as per ARINC 781 Power Requirements Input Voltage (AC) Power Consumption 96 to 122 V AC, 300 to 900 Hz 400 VA Table 1-2 provides a summary of the physical characteristics and equipment specifications of the SCM component.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Table 1-3 lists the RTCA/DO-160E environmental characteristics of the SDU and SCM. Table 1-3 ARINC 781-200 SDU and SCM RTCA/DO-160E Environmental Characteristics Section Environmental Condition Category 4.0 Temperature and Altitude F2 4.5.1 Ground Survival Low F2 4.5.2 Operating Low Ambient F2 4.5.3 Short Time Operating High F2 4.5.4 Operating High Ambient F2 4.5.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 1-3 A781-200 Avionics System Block Diagram NOTE: On the aircraft only the Ethernet 3, POTS, 4-Wire and CEPT-E1 ports are supported. A.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM The major interfaces of the SDU are listed in Table 1-4.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM D. POTS The SDU supports two POTS interfaces. E. CEPT-E1 The SDU supports one CEPT-E1 interface. F. ISDN Two ISDN interfaces are currently not supported. G. Maintenance Port The SDU is equipped with a maintenance port, located on its front panel.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM NOTE: During initial power-up or self-test execution, a momentary press of the self-test button is ignored. The LEDs indicate the results of the self-test. Table 1-5 provides information about the meaning of LED signals. 6. Software Description All operating software meets RTCA/DO-178B Level D requirements. The SCM does not contain any software. Only configuration parameters are stored in the SCM.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM SYSTEM OPERATION The SDU is an integral component in an AES. Together with the SCM, DLNA, Antenna, and HGA subsystem, it provides AMSS by facilitating airborne satellite communication services over the Inmarsat network. These services comprise Classic Aero-H+, Swift 64, and SwiftBroadband (SBB).
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM To complete the registration form you need the following information: • Customer information (address and contact information) • Service provider details (obtained from your ISP) • System and terminal information (terminal type, manufacturer, model number, serial number of terminal) • ICAO 24 bit technical address for Aero H+ services • IMEI and IMSI (printed on the SCM label) for SBB services • Aircraft informati
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 2-1 MCDU Screen NOTE: The SAT PHONE 1/2 menu shown in Figure 2-1 is an example where classic (SAT-1) and SBB (SAT-2) cockpit calls are supported. Depending on the secure ORT parameter settings, the prompts "SAT-1" and "SAT-2" can be replaced to display any message limited to five characters. The top of the screen displays the title of the menu on the screen.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM (3) Special Symbols Because of space constraints on the screen, the MCDU uses a number of special symbols to indicate actions: • < and > appear at the far left or right to indicate that another menu page is available in that direction or that a function is available for that label. • NUMBER/NUMBER appears to tell you which page out of how many pages you are viewing.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 2-2 A781-200 MCDU Menu Structure B.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM You can watch the progress of the logon on the SATCOM LOG 1/2 menu, or simply wait until the prompt on the SAT-PHONE 1/2 menu indicates the service is available for use. (1) Logging On Automatically When you initiate an automatic logon, the system selects a satellite and GES based on the preferences specified in the ORT. To log on automatically: 1. On the SAT-PHONE 1/2 menu, press the button next to LOG.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM 3. Press the button next to GES ID until the MCDU screen shows the GES to which you want the A781-200 system to log on. 4. On the SATCOM LOG menu, press the button next to MANUAL LOG-ON. The MCDU returns to the SAT-PHONE 1/2 menu and updates the SAT-L and SAT-R channels with READY status after the log on completes. NOTE: SAT-L shows the Classic Aero channel status and SAT-R shows the SBB channel status.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Table 2-1 A781-200 System Log Status (Continued) Log Status Description REJECT-TEMPORARY Logon rejected by the GES, but the condition is temporary REJECT-PERMANENT Logon rejected by the GES, and the condition is permanent REJECT-INV PARAM Logon rejected by the GES due to invalid parameters, and the condition is permanent REJECT-AES INVAL ICAO address was not accepted by the GES, the condition is permanent LOGGING O
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM (2) Enabling CTU calls To enable CTU calls: • On the SAT-PHONE 2/2 menu, press the button next to DISABLED. The MCDU displays ENABLED under CTU CALLS. D. Accepting and Making Calls in the Cockpit You can make air- to-ground and accept ground-to-air voice calls using the A781-200 system, the MCDU, the Audio Control Panel (ACP), and a 4-wire cockpit headset. The 4-wire cockpit headset supports Push to Talk (PTT) mode.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM 3. Press the button next to MANUAL ENTRY. NOTE: If an entry has MANUAL ENTRY under the SAT-1 label, that entry can be dialed on Classic Aero channels. If an entry has MANUAL ENTRY under the SAT-2, that entry can be dialed on SBB channels. MAKE CALL and the number appear under the channel label. 4. To set the priority, press the button next to PRIORITY. Note: You can only set the priority for a Classic call.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM 5. On the MCDU, press the button next to MAKE CALL. The channel status displays DIALING, RINGING and then ANSWERED when connected. (b) Making Calls from the Telephone Directory You can make voice calls from the numbers you have saved in the MCDU’s telephone directory. Numbers can be saved in the telephone directory using the MCDU or the ORT. For more information on the ORT, see "ORT Overview" on page 3-8.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM 4. Press the button to the left or right of the number you wish to dial. • Pressing the left button loads the number on the Classic Aero channel • Pressing the right button loads the number on the SwiftBroadband channel. The MCDU returns to page one of the SAT-PHONE menu and the number is displayed under the selected channel. 5. To set the priority, press the button next to PRIORITY.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM (2) Call Priority and call Pre-emption The A781-200 system has four priority settings for calls: • 1 Emergency • 2 High • 3 Low • 4 Public (a) Setting the Call Priority You can set the priority for an air-to-ground 4-wire Classic call before making the call.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM To save telephone numbers to the telephone directory: 1. Navigate to the SAT-PHONE 2/2 menu and press the button next to DIR DETAILS. The SAT DIR DETAILS menu appears and shows directory page 1. There are 20 phone directories with five phone number entries available in each directory. 2. Use NEXT PAGE and PREV PAGE to navigate to the directory in which you want to add or modify a phone number entry. 3.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM 4. Type the name associated with the telephone number in the scratchpad and then press the button next to the name field on the MCDU screen. • 5. The maximum number of characters for a name is 14. Type the phone number in the scratchpad using the following pattern. 00CC-NNN-NUMBER. 00 is the access code for international calls, CC is the country code, and NNN is the city or area code.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM You can view the following information from this screen: • SDU status on the line below SDU • Overall health of all subsystem components (SCM, DLNA, and HGA) on the line below SUBSY HLTH • Thermal status of the SDU and HGA on the line below OVERTEMP • SCM health on the line below SCM • Peripheral LRU bus status on the line below SYS BUS • Subsystem bus status on the line below SUBSY BUS • The number of functioni
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM As shown in Figure 2-3, the SBB1 menu provides information about the status of the SBB service. Figure 2-3 SBB menu Table 2-2 describes the information available in the SBB menu. Table 2-2 SBB Menu Label Status Description The status of the SBB channel.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Table 2-2 SBB Menu Label Description Satellite The selected ocean region. Activity The activity status of the SBB service. Possible values are: • CS CONNECT—Circuit Switched services in use • PS CONNECT—Packet Switched services in use • CSPS CONNECT—Circuit Switched services and Packet Switched services in use • NONE —No services in use. Signal The current signal quality. EIRP The EIRP setting of the channel.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 2-4 Swift 64 Menu Table 2-3 describes the information available in the Swift 64 menu. Table 2-3 Swift 64 Menu Label Status Description The status of the Swift 64 channel.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Table 2-3 Swift 64 Menu Description Label Beam ID The current beam ID for the service. Forward ID Swift 64 forward ID which the A781-200 system uses to access Inmarsat Swift 64 services. C. Channel Information and Bit Errors As shown in Figure 2-5, the SATCOM LOG 2 menu provides information about the current channel and the bit error rate.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM D. System Part Numbers As shown in Figure 2-6, the SATCOM CONFIG 1 menu provides the hardware part numbers of the SDU and the SCM. Figure 2-6 SATCOM CONFIG 1 menu Table 2-5 describes the information available in the SATCOM CONFIG 1 menu. Table 2-5 SATCOM CONFIG 1 Menu Label Description Hardware Part Number Part number of the A781-200 SDU. Serial Number Serial number of the A781-200 SDU.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 2-7 SATCOM CONFIG 2 menu Table 2-6 describes the information available in the SATCOM CONFIG 2 menu. Table 2-6 SATCOM CONFIG 2 Menu Label Description SW Part Number SDU OPS Software part number of the operational software in the A781-200 SDU. SW Part Number SDU SORT Software part number of the Secure ORT. SW Part Number SDU UORT Software part number of the User ORT.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 2-8 SATCOM CONFIG 3 menu Table 2-7 describes the information available in the SATCOM CONFIG 3 menu. Table 2-7 SATCOM CONFIG 3 Menu Label Description SATCOM Antenna LRU Part Number Hardware part number of the antenna in the A781-200 system. Serial Number Serial number of the antenna in the A781-200 system. Software App Name The reported software application name.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 2-9 Maintenance Mode MDCU Menu Structure A. Accessing Maintenance Mode You can only access the MCDU maintenance menus when the plane is on the ground and classic services are logged off.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM To access the maintenance menus: 1. In the MCDU CONFIG 1/4 menu, type the protection level code in the scratchpad, and press the button next PROT LEVEL CODE. NOTE: Contact RCI product support for the PROT level code. The MCDU displays the MAINTENANCE ENTRY page. 2. To enter Maintenance Mode, press the button next to CONFIRM. The SATCOM MAINT MENU appears.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM B. Viewing BITE Information The BITE information available in maintenance mode is the same as the BITE information available in In-Flight mode. For information about the BITE menus, see "Viewing BITE Information" on page 2-15. C. Starting the Intermod Test For information and instructions about running the PIM test, see "Passive Intermodulation (PIM) Test" on page 3-8. D.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 2-10 SATCOM PARMS Table 2-8 describes the information available in the SATCOM PARMS menu. Table 2-8 SATCOM PARMS Menu Label Description LOGON MODE AUTO or MANUAL DD/MM/YY Current date TIME Current time SDU/ANT Estimated loss between the SDU and antenna CHAN CARD1 Default data mode of operation in ORT. FAILOVER Disabled—SDI operates in SBB mode.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 2-11 SATCOM OPTIONS Table 2-9 describes the information available in the SATCOM OPTIONS menu. Table 2-9 SATCOM OPTIONS Menu Label Description CHIME-A2G Value of the CHIME A@G ORT parameter. CALLED PARTY Display mode selection for call placement. MANUAL DIAL Current state of the scratchpad number entry control. G.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 2-12 CONFIG AUDIO 1/2 Table 2-10 describes the information available in the SATCOM CONFIG AUDIO 1 menu. Table 2-10 SATCOM CONFIG AUDIO 1 Menu Label Description AUDIO LINE Switch between 4-wire 1 and 4-wire 2. SPEAKER Headset speaker level—0 to 100. MICROPHONE Microphone level—0 to 100. SIDETONE Sidetone level—0 to 100. NOISE Headset speaker noise level—0 to 100.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 2-13 CONFIG AUDIO 2/2 Table 2-11 describes the information available in the SATCOM CONFIG AUDIO 2menu. Table 2-11 SATCOM CONFIG AUDIO 2 Menu Label Description AUDIO LINE Switch between 4-wire 1 and 4-wire 2. PUBLIC CALLS Displays the value of the Ground Initiated Public Call Routing ORT parameter. This parameter enables the placing and acceptance of public calls via the analog audio lines.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM INSTALLATION This section describes the procedures required to install the A781-200 system (SDU and SCM) on an aircraft, including the following sections: • Advisories • Pre-Installation Inspection • Installation Procedure • Connection Details • Owners Requirements Table (ORT) • Passive Intermodulation (PIM) Test • Installation and Engineering Drawings 1.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM 3. Installation Procedure Only authorized technical personnel, trained in general aviation workmanship, that have a basic understanding of SATCOM systems should proceed with the following procedure. Before performing any installation procedures, read the safety advisories listed in "Advisories" on page 3-1 of this manual. CAUTION: THE ARINC 781-200 SYSTEM REQUIRES CONDITIONED AIR PER ARINC781.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Table 3-1 SDU Rear Connector Pin Deviations Pin Number A781 Deviation TP01C ATE pin 3 Router Processor & Data I/O Processor Maintenance GND TP01D ATE pin 4 Data I/O Processor Maintenance TXD TP01E ATE pin 5 Data I/O Processor Maintenance RXD TP01F ATE pin 6 CC1 Processors #1 & #2 Maintenance GND TP01G ATE pin 7 CC1 Processor #1 Maintenance TXD TP01H ATE pin 8 CC1 Processor #1 Maintenance RXD TP01J ATE p
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Table 3-1 SDU Rear Connector Pin Deviations Pin Number MP08E A781 Data Loader Link A Deviation Use by 615A Data Loader (Ethernet) Note 1: Wiring harness to SCM provides 2 physical connections to each pin Figure 3-1shows the top plug pin deviations outlined in gray.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 3-1 Top Plug Pin Deviations Figure 3-2 shows the mid plug pin deviations outlined in gray 23-15-30 3-5 DATE TBD
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 3-2 Mid Plug Pin Deviations 23-15-30 3-6 DATE TBD
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Table 3-2 SDU Front Connector DSUB and RJ45 Pin Assignment 9S DSUB Pin Number Description RJ45 Pin Number Description 1 NC 1 RX+ 2 TX 2 RX- 3 RX 3 TX+ 4 NC 4 NC 5 GND 5 NC 6 NC 6 TX- 7 NC 7 NC 8 NC 8 NC 9 NC B. SCM The SCM uses a 15 pin D-type male connector and locking screws. Pin assignments are compliant with ARINC Characteristic 781 and shown in Table 3-3.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Table 3-3 SCM D-Type Connector Pin Assignment (Continued) Pin Number 15 Description Power Return 0 V 5. Owners Requirements Table (ORT) A. ORT Overview The A781-200 system includes a secure and user ORT. Secure ORT files must be certified for the aircraft type on which the equipment is installed. Items in user ORT files can be modified by individual customers and may be customized to an individual aircraft.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM • The A781-200 SDU must have successfully logged on to a satellite that is visible at the test location within the last 168 hours (7 days). • The aircraft has to be outside the hangar and far away from the hangars and towers in order to obtain good results. • The aircraft must be facing due north in the northern hemisphere, and due south in the southern hemisphere. C.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM The MCDU displays the overall PIM status and results for each direction. If the overall status is PASS, the SDU can continue to use SBB services. If the overall status is FAIL: • Check the cable connections of the antenna and the SDU. • Check the direction in which the test failed and verify that the antenna is not blocked in that direction—see "Directional PIM Test Results" on page 3-10.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 3-3 ARINC 781-200 SDU Outline and Installation Drawing, 1530-E-1100 Rev B00 (Sheet 1 of 2) 23-15-30 3-11 DATE TBD
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SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 3-4 ARINC 781-200 SDU Outline and Installation Drawing, 1530-E-1100 Rev B00 (Sheet 2 of 2) 23-15-30 3-13 DATE TBD
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SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 3-5 ARINC 781-200 SCM Outline and Installation Drawing, 1530-E-1300 Rev C00 (Sheet 1 of 2) 23-15-30 3-15 DATE TBD
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SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 3-6 ARINC 781-200 SCM Outline and Installation Drawing, 1530-E-1300 Rev C00 (Sheet 2 of 2) 23-15-30 3-17 DATE TBD
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SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 3-7 ARINC 781-200 System Interconnect Drawing, 1530-B-1001 Rev C00 (Sheet 1 of 3) 23-15-30 3-19 DATE TBD
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SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 3-8 ARINC 781-200 System Interconnect Drawing, 1530-B-1001 Rev C00 (Sheet 2 of 3) 23-15-30 3-21 DATE TBD
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SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 3-9 ARINC 781-200 System Interconnect Drawing, 1530-B-1001 Rev C00 (Sheet 3 of 3) 23-15-30 3-23 DATE TBD
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Blank Page 23-15-30 3-24 DATE TBD
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM TEST AND FAULT ISOLATION This section provides test procedures to determine the operational readiness of SDU units. There are no operational test procedures defined for the SCM. SCM health is determined by accessing the SDU BITE information.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Table 4-1 List of Required Test Equipment Item Equipment Computer Standard Specification PC running VT-100 terminal emulator Quantity 1 such as HyperTeminal and equipped with an RS-232 port. VT-100 terminal emulation program HyperTerminal©, ProComm Plus©, or equivalent Serial communication program using an 1 RS-232 port Cable RS-232 cable Maximum length 25 feet 1 C.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Table 4-2 Maintenance Port Connection Settings Parameter Setting Character Format ASCII Baud Rate 19200 bps No. of bits 8 Parity None Stop bits 1 Flow Control None (2) Using the SDU MPU This section describes the basic procedures for using and navigating the SDU MPU. NOTE: There are various levels of access to the MPU. Each level is protected by a different password.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM 4. To turn off all active reports, press EQUAL SIGN (=), and then press X. (3) Menu Item Descriptions This section provides a brief description of the Level 1, MPU menu items used for test and fault isolation procedures. In active SDUs, menu screens display the firmware version.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Table 4-5 Menu 3 Item Descriptions Menu Item F: list call log Description Lists Classic call logs for the following events: • Successful Aero Log-on • Air-to-ground calls accepted by the SDU • Ground-to-air calls accepted by the SDU Lists SBB call logs for the following events: • Attachment or modification of attachment, including change of beam ID • Creation or deletion of primary or secondary contexts O: list DIO ORT Li
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Refer to the Outline and Installation diagrams (Figure 3-1 to Figure 3-6) and the Interconnection and Contact Assignment drawings (Figure 3-7 to Figure 3-9) for additional information. (1) Test Setup Procedure The test setup procedure is presented in Table 4-6. Table 4-6 Test Setup Procedure Step Action 1.0 Make sure that the SDU is powered down and disconnected from the power source. 2.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Table 4-8 Power-On Test Procedure Step Action 1.0 Follow the test setup procedure in Table 4-6 on page 4-6. 2.0 Power-on the SDU. 3.0 Check the status of the front panel LEDs. Verify that the green LED flashes for 60 seconds and then turns off. Verify that the red LED is not illuminated. For more information about the LED signals, refer to "LEDs" on page 1-9. 4.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 4-2 SATCOM Subsystem Health Menu Table 4-9 describes the information available on the SATCOM SUBSY HLTH menu. Table 4-9 SATCOM Subsystem Health Menu Label LNA Description Action Reports the status of the LNA as OK, NO DATA (if golden label 350 from the antenna is missing or HGA is disconnected), TEST, or FAULT. The LNA status matches the HDA status.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM To check the bus status, on the SATCOM BITE menu, press the button next to SYS BUS. Figure illustrates the SATCOM System Bus menu. Figure 4-3 SATCOM System Bus Menu Table 4-10 describes the information available on the SATCOM SYS BUS menu. Table 4-10 Bus Status Indicators Status Bus INACTIVE NO DATA NONE OK CFDS The A781-200 does not support or receive input from the CFDS. Therefore the status will always be NONE.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Table 4-10 Bus Status Indicators Status Bus INACTIVE NO DATA NONE OK IRS - SEC No labels of correct speed on bus. The expected Golden The IRS2Type secure label (310) is not ORT parameter present. specifies whether it is connected or not connected. The expected Golden label is present and the bus is active at the correct speed. GNSS No labels of correct speed on bus.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 4-4 SATCOM Overtemp Menu Table 4-11 describes the information available on the SATCOM OVERTEMP menu. Table 4-11 SATCOM OVERTEMP Menu Label Description Action SDU Reports the SDU thermal status If the status is FAIL, check the fan operation and as OK or FAIL. temperature at the location of the equipment. HGA Reports the HGA thermal status If the status is FAIL, check the fan operation and as OK, NO DATA, or FAIL.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 4-5 SATCOM SCM Menu Table 4-12 describes the information available on the SATCOM SCM menu. Table 4-12 SATCOM SCM Menu Label Description Action STATUS Reports the SCM status as OK or FAIL. BUS TO/FROM Reports the status of the bus to the SCM as If the status is FAIL, check the OK or FAIL. connections to the SCM.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM E. Subsystem Bus Status As shown in Figure 4-6, the SATCOM SUBSY BUS menu reports the status of all subsystem buses that provide communication between the components of the system. Figure 4-6 SATCOM Subsystem Bus Menu Table 4-13 describes the information available on the SATCOM SUBSY BUS menu. Fields are left blank if the equipment is not included in the installation. NOTE: Input and output are with respect to the SDU.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 4-7 SATCOM RF Path Menu Table 4-14 describes the information available on the SATCOM RF PATH menu. Table 4-14 SATCOM RF PATH Menu Label RX:DLNA-SDU Description Reports the status of the RF path from the DLNA to the SDU as OK or FAULT. G. USIM and Data Bus Status As shown in Figure 4-8, the SATCOM USIM/DATA menu reports the status of the USIMs and data buses of the system.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM Figure 4-8 SATCOM USIM/DATA Menu Table 4-15 describes the information available on the USIM/Data menu. Table 4-15 SATCOM USIM/DATA Menu Label Description USIM#1 Reports the status of USIM#1 bus as OK, WARMING, SBB LOG, FAULT, or N/A if channel card 1 is not in SBB mode. ETH#1 Reports the status of ETH#1 bus as DISABLED, LINK, or NO LINK. ETH#2 Reports the status of ETH#2 bus as DISABLED, LINK, or NO LINK.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM [RCI to complete] RCI Product Support may ask you to capture and send them system specific logs and reports. To access logs: 1. In the maintenance port menus, navigate to Menu 3. 2. Turn on the text capture feature of the terminal emulator on your computer. In HyperTerminal, click Transfer, and then click Capture Text. 3. To view the call log, in Menu 3, press F. 4.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM MAINTENANCE AND REPAIR This section provides maintenance and repair information for the A781-200 system, including the following sections: • Maintenance • Repair • Instructions for Continued Airworthiness • Visual Inspection and Check 1. Maintenance The A781-200 system does not require routine maintenance. 2. Repair If functional problems occur, the SDU BITE identifies the faulty LRU.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM A. Airworthiness Limitations When applicable, the Airworthiness Limitations section is FAA-approved, and specifies maintenance required under Title 14 Code of Federal Regulations (CFR) Part 43.16 and 14 CFR 91.403 of the Federal Aviation Regulations unless an alternative program has been FAA approved. This section must be added to the Airplane Maintenance Manuals.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM 10. Add the following scheduled maintenance tasks to the aircraft operator’s appropriate aircraft maintenance program: 1. Recommended periodic scheduled servicing tasks: None required. 2. Recommended periodic inspections: as per the aircraft inspection and maintenance schedule. 3. Recommended periodic scheduled preventative maintenance tests (tests to determine system condition and/or latent failures): None required. 4.
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SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM APPENDIX A: RETURN MATERIAL AUTHORIZATION To return equipment to RCI for repair, this RMA procedure must be followed. Failure to comply with this procedure may result in shipping delays and additional charges. 1. Warranty Returns Equipment that qualifies for warranty repair can be returned to RCI for repair or replacement at their discretion.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL ARINC 781-200 SDU and SCM 5. Write the RMA number on the outside of the shipping container and on all shipping documents, enclose a copy in the box, and send your prepaid shipment to RCI. [RCI to complete] 6. Fax or email the details of the shipment to the R&O Coordinator, including the following information: Shipment date, carrier name, and the waybill number. 7.
