Raytheon IIS ARTU Air-Ground Radio System User Manual installation manual part seven

Raytheon Company Air-Ground Radio System installation manual part seven

installation manual part seven

FCC ID: CDG-ARTU EXHIBIT CMAGNASTAR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM9.1.10 UNWCKED ONLINE STATEThis test step is a mode change only. Failure of this mode change will only occur if the MMT is notcommunicating with the ARTU. This mode change will place the C-2000 back into an operational modeand allow the installer to perform normal system functions.Symptom: ERROR=> MMT communications failure - ti~d out.If this ~ssage is displayed in the Radio Responses window then check the cabling between theARTU and the MMT. If the cabling is correct then press "R" to repeat the test.V4.0A HHT Radio Responses-.Radio 8oftwere .-.cutiDg in unlocked online state.+ + ~ MMT TUtorial : DfS1A205..: ~t08: 'Radio aof~e executing in unlocked online state' ia not shown: e) Check.-T cable connection.: b) Pres. ... to repeat test.Figure 9. 10. Unlocked On-line State MMTI Troubleshoot Screen.9-13 RevB
FCC 10: CDG-ARTU EXHIBIT CMAGNASTAR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM9.1.11 RECEIVE SIGNAL STRENGTH MEASUREMENT USING GENSTAR GROUNDSTATIONThis test step is a verification of operational capabilities of the C-2000 if the installer is able to monitor aGTE Airfone Ground Station from the location at which the system is being installed. If communicationswith a ground station is possible, the Pilot Status screen will indicate that the ARTU is in sync with theground station Pilot control channel.---V4.0A MIr1' Radio Responses-: C-2000 reports statua update ENABLED.I,PrM8 r2 to Vi- Status Display:IHS1A115 :I II ,:~t_, ay.t- cSoea DOt appear to be monitoring a grOUDdatation. :: .) Have you waited several minutes for the pilot scanning to complete and :: tha 8Y8t- to lock on and monitor a groundstation. :: b) Are you 8Ure that the location you are currently at will support :: c.-micatioos between the AR'n1 and the groundstetion? Check to see :: that this .line of sight. RP system is not blocked. i.e. the antenna :: i. not blocked by carta. hanger. door. being closed or a building in :: the way. :(a).turn: -Figure 9. RSS Measurement Using GenStar Ground Station MMTI Troubleshoot Screen.9-14 RevB
FCC ill: CDG-ARTU EXHIBIT CMAGNASTAR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM9.1.12 MMTI Troubleshoot ConclusionThe MMT installation tutorial is concluded with a troubleshoot screen that provides the telephone numberof the MagnaStar "ST ARLINE". This number can be used to contact MagnaStar personnel concerningquestions about the MMT or C-2000 troubleshooting problems. The ST ARLINE number is 888-246-STAR (7827).r 0,+ o; ~ v. OA Iar1' Radio R.""""."-'. c-;:.F~":CC-. -r-: DfSlA1l6 c:,*, .: Pleas. direct questiOl18 or c~ta concerning *I'I operati- :: to the llagnastar &1gineering d~t on the STARLDIB at :: 888-246-STAR (7827). :~9. 12. MMTI Conclusion Troubleshoot Screen.9-15 RevB
FCC ill: CDG-ARTU EXHIBIT CMAGNASTAR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM9.2 Additional MMTI Troubleshoot InformationThis section provides additional tests that may be used for troubleshooting or system check-out. Tests inthis section require the use of the MMTI commanded mode screens. See section 9.3 for informationdetailing navigation and description of the various MMTI commanded mode screens.9.2.1 Data Cable Pull CheckThe data cable pull check can be a useful test for finding intermittent cable connections between CDBRs orbetween a CDBR and an ARTU. This test is performed using the MMTI commanded ~e. This testinvolves monitoring debug messages on one of the MMTI status screens while moving the data cables.The performance of this test requires the ARTU to be placed in a "locked offline state" in order to easilyrcvicw thc MMTI debug messages. While in the "locked offline state" the "71 P AB_BIT TASK" dcbugscreen will display a message if the ARTU detects an intermittent connection. The MMTI will display"AMX_IN_SYNC message received from AMX DSP LAN Adr=xx" on the debug screen if an intermittentconnection is detected as shown in Figure 9.2.1. The message "DQ2 DSP _ERROR_CODE rcvd from DSP#14, HDRI=I00 hex" message will appear every 15 seconds on the debug screen when the ARTU is placedin the proper mode and the correct debug screen selected. If an intermittent connection is detected, checkthe cable for proper seating, damage, and bad or broken solder joints. Swapping of a CDBR or AIU maybe necessary to isolate intermittent or damaged connectors on the units themselves. The steps forperfonning the data cable pull check are as follows:Power up the ARTU and let it complete Built-ln- Test.Connect the MMT cable to the ARTU and the computer.Start the MMTI software and select commanded mode of operation.Select the Goto Radio Installation/f est Menu.Select the Set Radio Locked/Offline command.Press the escape key.Goto Radio Maintenance Operations Menus.Goto Debug Menu.EnablelDisable All Debug Msgs.Enable All Debug Msgs.Select No to Log Debug messages.Press the "F I" key three times to scroll to the 71 P AB_BIT TASK Debug screen.The message "DQ2 DSP_ERROR_CODE rcvd from DSP#14, HDRI=IOOhex" message willappear every 15 seconds on the debug screen.Move cables and look for intermittent connections on the MMTI Debug screen.+ 71 PM_an TUK +:1501.028 11102 ~_~COI8 ~ f~- ~ 11., ~1 . 100 ~ ::1501.0.3 1 DQ2 08 COI8 ~ f~_~. 11., ~1 . 100 ~ ::1501.058 1 1102 ~_--COI8 ~ f~- DSP 11., ~1 . 100 ~ ::15015013 1 1102 DSP_--COI8 ~ f~- D8P 11., BD8.1 . 100 ~ ::1501501' 1 nE_~ --- ~i~ f~ AD D8., La8 aAz: . 0 ::15015020 1 ~%--8YE r8C.i~ f~- AD DSP, La8 aAz: . 2 ::15015021 1 ~m_8YE -_.ag. r8C.i~ f~- AD ~P, La8 aAz: . 2 ::15015028 1 1102 DSP_--CO~ ~~ f~ D8. 11., BDa1 . 100 hex ::150150.3 11102 DSP oR_COD8 ~ fraa 08.,1., BDa1 . 100 hex ::15015058 1 1102 ~---COD8 ~ f~ D8. 11., BDa1 . 100 hex I:15011010 1 nE-- --- ~_i.-4 f~ AD D8., LA8 aAz: . 0 ::15011011 1 ~X8-8YE r8C.i~ f~- AD DeP, La8 aAz: . 2 1:15011013 1 1102 DSP_8aaOa_CO~ ~ f~ DBP 11., BDal . 100 ~ ::15:11:28 1 1102 DSP_--COD8 ~ f~ DB. 11., BDal . 100 ~ ~~Figure 9.2. 71 PAB_BIT TASK Debug screen for Data Cable Pull Test.9-16 RevB
FCC 10: CDG-ARTU EXHIBIT CMAGNAST AR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEMTo return the C-2000 system to nonnal operation, use the following steps:After completion, press the "F2" three times.Press "ESC" several times to return to the C-2000 MMT Main Menu.Select the Goto Radio lnstallarion!r est Menu.Select the Set Radio Unlocked/Online command.9.2.2 Fault Counter CheckThe fault counter check can be used to view faults stored in non-volatile memory. The ARTU will storefaults detected during power-up BIT or operational background BIT. See Figure 9.4.2.2. for a display ofthe fault counter MMTI screen. The following commands are to be used to display the ARTU faultcounters:Power up the ARTU and let it complete Built-ln- Test.Connect the MMT cable to the ARTU and the computer.Start the MMTI software and select commanded mode of operation.Select the Goto Radio InstallatjonfTest Menu.Select the Set Radjo Locked/Offline command.Press the escape key.Select Goto Radio Configuration Menu.Select Report Fault Counters9.2.3 Flight Test LogThe flight test log can be a useful tool for identifying problems in a dynamic environment. By savingsoftware debug information in a log, the information can be reviewed at a later time. By saving theinformation on a disk it can be sent to MagnaStar Engineering for review. The following steps are used toenable the Flight Test Log:Power up the ARTU and let it complete Built-In-Test.Connect the MMT cable to the ARTU and the computer.Start the MMTI software and select commanded mode of operation.Select Goto Radio Maintenance Operations Menus.Select Goto Debug Menu.Select Enable/Disable All Debug Msgs.Select Enable All Debug Msgs.Respond "Yes" to Log Debug messages to the hard disk.Enter a filename to identify the debug log file.Respond "No" to the store TSC Status updates.Respond "No" to the store Pilot Status updates.In order to conserve computer memory, the debug log should be closed after completion of the flight test.The following steps will close the flight test debug log:Select Enable/Disable All Debug Msgs.Select Disable All Debug Msgs.Respond "Ves" to close the debug file on the hard disk.RevBQ.t7
FCC ID: CDG-ARTU EXHIBIT CMAGNASTAR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM9.2.4 L-Band Interference TestsBecause the C-2000 system operates in the 850.900 MHz range, interference between the C.2000 and L-Band equipment (i.e. DME, Transponder, TCAS) can occur if there is not enough isolation betweenantennas. Testing for interference can be done by making the C-2000 equipment transmit. By monitoringthe Receiver Signal Strength (RSS) value reported in the Radio Status screen while the ARTU istransmitting, it can be determined if the L-Band equipment interferes with the C-2000 system.The simplest test method is to use the MMTI installation test mode and to stop at the Receive SignalStrength test step. By not connecting up the loop around test box, no signal level should be reported abovethe nominal no signal value. Frequency agile devices like DMEs must be tuned and transmit across thewhole operating frequency range to assure that there are no frequency dependent interference problems. Ifany change occurs in the RSS value then there is interference from external equipment. The nominal nosignal value of the RSS can be determined by disconnecting the receive coax cable from the ARTU andviewing the RSS value on the Radio Status screen. See section 6.3.12 for the Receive Signal StrengthMeasurement test procedure.9.2.5 CEPT -El Communication VerificationThe MagnaStar ARTU is capable of interfacing to multichannellNMARSA T SA TCOM equipment using aCEPT -EI digital interface. ARTU part number 724855-802 has additional hardware which will supportthis interface. Calls are routed through the ARTU to the SA TCOM over the CEPT -E I interface. TheCEPT -E I interface is a 2.048 MHz time division multiplexed data bus consisting of differential serialtransmit and receive lines.Communication between the ARTU and the SA TCOM equipment can be verified by viewing a MagnaStardigital handset. If a handset displays the word Satcom on the Services menu when the handset is on hook.or in the bezel, then the ARTU and SA TCOM equipment are in communication over the CEPT -E Iinterface. Also, if the LINK option is available from the handset Main menu, then the CEPT-EI isoperational. If SA TCOM is not present at the Services menu, then the SA TCOM system has informed theMagnaStar system there are no channels available. If this happens during initial system installation, verifythe Satcom system configuration jumpers (verify that the SA TCOM system has been configured forExternal CTU). It is possible that conditions may exist which will keep SA TCOM calls from being placedSA TCOM units do provided status information to the ARTU over the CEPT -E I bus which can indicate thatthe SA TCOM unit is either faulted or that SA TCOM channels are not available for use. This information isreported to the user when a call is placed. SA TCOM channels not being available for use may includeitems beyond the SA TCOM unit including satellite coverage problems or ground station problems.It is possible to detennine the status of the CEPT -EI interface between the ARTU and the SATCOM unitusing the MMT. Figure 9.2.5 shows the ARTU Status screen. In the lower right hand comer is CEPT -EIstatus information. The CEPT -EI status information has three possible states; RR, RNR and DOWN.There are two columns of information. The ARTU column applies to the ARTU and the CMS columnapplies to the SA TCOM equipment. It may be possible to isolated RNR problems to a particular piece ofequipment using the column labels.This status infom1ation means Receiver Ready. This condition indicates that the CEPT.El interface and equipment is operational.RR-RNR - This status information means Receive Not Ready. This condition indicates that theCEPT -E 1 interface is operational but that the equipment is not functional.DOWN - This status information means that the CEPT -El interface is not operational. This couldindicated that either piece of equipment is at fault or no CEPT -E 1 connection.RevSQ.IK
FCC ID: CDG-ARTU EXHIBIT CMAGNASTAR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM+ at.atu. up.sat +: Aizeraft ID: 800001h AcCOUDt 8a8b8r: '002350600 -.4io ID. 88&0001 :: CP1...tUrD to Prior """) U'lV ftA~ C~l. at..tu. S~) :: :: - ... -.. U'lV at.atu. ::aa.iv-at. - ~ 10 Ad8iA: U8LOCK 0DeZ"" ::..S C488). -127.5 0.0 -81.0 ATa!l: .or DO v... ~ ::Doppl.Z' CB.). 0 -22 ::Opezo Stat .. CODt.%'l.~Ia ::T8C/ACC Stat.. OFF 8aD4o11 Stat.. .-11 ::Ch Yot lOx6. 0 0 :: Ch 8Z'Z' 1 0..3 . 0 0 ::Ch ... . .000000 .000000 ~ SWitch. I8 ::acL Yot 10..3. 0 0 ".- ID4ioat_. ~ ::.cL 8Z'Z'. 0 0 Oacill-tor ::acL ... : .000000 .000000 ::8aD4011 aQ8'f: 8ot.-.e4 CPO 141.. 83- CC-) an CIaat.) ! CEPT-EI' ,: VIC 1/1 V8C 1/3 Inforn1ation:V8C Stat.. "_On' "_OFF caU croll:Cal1..,. 0 0 8CL.: -- Cap::.. Ct.%' 1 . ,: 'fa Ct.%' 1 . :+ +Figure 9.2.5. ARTU Status Screen Showing CEPT -EI Interface Infonnation.RevB9-19
FCC 10: CDG-ARTU EXHffilT CMAGNASTAR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM9.3 MMTI Commanded ModeThe MMTl commanded mode allows the user more flexibility when testing the C-2000 system verses theinstallation mode. However, more step are required to perform an equivalent task in the commanded mode.The commanded mode also allows additional test capabilities over the installation mode.The MMTI commanded mode menu structure is comprised of four sections: the Radio Configurationmenu, the Radio Installation/Test menu, the Boot menu and the Radio Maintenance menu. A flow chart ofthe menu structure is shown in Figure 9.3.1~ RADIO CONFIGURATION MENULOAD SPEED-DIAL DATABASESAVE SPEED-DIAL DATABASEVIEW INVENTORY DATABASEREPORT FAULT COUNTERSENABLE/DISABLE STATUS UPDATESt: ARTU STATUS UPDATESPILOT STATUS UPDATESENABLE/DISABLE RT RCL BER-I RADIO INSTALLATION I TEST MENUSET RADIO LOCKED I OFFLINECOMMANDED BIT MENURF TEST MENUTRANSMIT CONTINUOUS WAVETRANSMIT RANDOM QAMSTOP TRANSMITENABLE TSC RECEIVERENABLE PILOT RECEIVERPERFORM INITIAL PA EQUALIZATIONPERFORM PA EQUALIZATION UPDATEFAN CONTROL (ON I AUTO)HANDSET TEST MENU~HANDSET GENERATED CALL PROGRESS TONESRADIO GENERATED CALL PROGRESS TONESEST ABUSH HANDSET LANRESET HANDSET ATTRIBUTESRESET MAINTENANCE ACCESS PINSET RADIO UNLOCKED I ON LINE1--1 BOOT MENUSTART RADIO SOFTWAREREPORT RADIO SOF1WARE FILENAMESINITIATE BOOTLOAD RADIO SOF1WAREBATCH LOAD RADIO SOFTWARESTART MMT TUTORIALCONFIGURE MMT COM PORTCONFIGURE BATCH DOWNLOAD BAUD RATE'--I RADIO MAINTENANCE OPERATIONS MENUDEBUG MENUA Flow Chart Showing The Menu Structure Of The MMT Commanded Mode.Figure 9.3.RevB9-20
FCC ill: CDG-ARTU EXHIBIT CMAGNASTAR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEMThe first screen when starting the MMTI software is the MMT Start-up menu. To begin the conDnandedmode operation, make the appropriate selection from the MMTI Start-up menu as shown in figure 9.3.2. Ifthe ARTU has been powered prior to starting the MMTI software. the user will then proceed to the MMTMain menu. Figure 9.3.3 shows the MMT Main menu screen. If power is applied to the ARTU after theMMT software has started running, the user will then proceed to the MMT Boot Menu when theCODm1anded mode of operation is selected. Power must have been feDX)ved from the ARTU for greaterthan ten seconds in order to proceed to the Boot menu from the Start-up menu.A breakdown of each oftbe four sections with a description of each sub-~u is provided in the followingsections.+ V'.OA ~ -.4io "8P0D8e +: ~ Propzoietaryo 8of~ :: ,..tar 87 v_.iOG '.0& :: IU'rALL8a VDBI~ :: (C) Copyright 1'" aQtlaeOD .,..t- C-. :I - er (C) CGpJ'Z'ight 1"'-1'" PIaar ~ 8of~. X-. - 81,-'503 :: > Wt~h aerial Cable < :+ ++ r ~ +: C-3000 -.r ~ 0ftZ~ - :: I: 1 - 8t.an -.r - C-.a4 _. :I 3 - 8t.&&'t. -.r - I_t.a11at.~ :I II ,: 881ect. -.r .t.aft-~ ~ioa C 1 - 3. 0 too ~it. -.r) I - IFigure 9.3.2. The MMT Start-Up Menu Screen+ V'.OA ~ 884io " +, ,, ,: ~-ap 8taC... 80378 Kicroproc...or OK. 8aAK OK. :: Aa'fC 0048 rile Aa'fCC'08.8D Vezo 0.0 DeC. 0'/08/00 1,.25 88M 1 cac.f.CD:: ~ code rile ~'0A.8D Vezo 0.0 DeC. 03/27/00 12.13 88M 2 cac.12'8:: arr ood8 rile KarrC'OA.8D Vezo 0.0 DeC. 05/18/" 18.03 88M 1 C8Cs20ee:: 8ooC ood8 ril. ML-.cJ1C.8D Var 0.0 DeC8 0'/2'1'8 1,.27 88M 1 C8Cs'" :: 884io -'~ i. - _ciag.+ +~ .~ : C-2000 ~ DX8 - :, ,, .: 1 - ~ 88dio CODfigazo.ci- - :: 2 - ~ 884io XA8C&11aCi-"_c - ::J-~8ooC- :: , - _0 88dio *iAt:--. aperati-. -- :: :: 8DCezo Kai. - C-- (1 - '. 0 to q,.it t.Joe ~). - II IFigure 9.3.3 The MMT Main Menu Screen.9-21 RevB
FCC ID: CDG-ARTU EXHIBIT CMAGNAST AR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM9.3.1 MMTI Commanded Mode - C-2000 MMT Boot MenuThe MMTI Boot menu is used to perfonn functions while the ARTU software in not executing. Thisincludes reviewing software versions, loading new software files and starting software execution. TheMMTI Boot menu screen is shown in figure 9.3. I. I A brief description of each of the Boot menuselections is provided as follows:I} Start Radio Software - This command will start Built-In-Test (BIT) and radio software execution. Theradio software must be executing before any of the menu options, other that the boot menuoptions, are valid.2} Report Radio Software Filenames - This command will report the software files that are loaded in theARTU. The software files will be reported similar to those shown in the Radio Response windowof Figure 9.3.1.1.3} Initiate Boot - This command will stop radio software execution and place the radio in a Boot mode ofoperation. The ARTU must be in a Boot mode of operation for commands on this screen to bevalid.4} Load Radio Software - This command is to be used when new software is to be loaded in the ARTU.This command can only load a single file at a time and is only valid for ARTC and MDSP code.5} Batch Load Radio Software - This command is to be used to load all four different software filesrequired to operate the ARTU at one time. See Figure 9.3.1.2 for an example of the BatchSoftware Download screen6} Start MMT Tutorial- This command can be used to start the installation mode of the MMTI.7} Configure MMT COM Port - This command is used to change the data transfer (baud) rate whenloading software between the MMTI computer and the ARTU. It should be noted that aftercompletion of a file transfer the baud rate must be set back to 9600 in order for the MMTIsoftware to communicate with the ARTU.8} Configure Batch Download Baud Rate - This command is used to change the data transfer (baud) ratebetween the MMTI computer and the ARTU when batch software downloading is to beperformed. The default baud rate value is 9600 (9.6 kbs) for batch software downloading. Thiscommand allows the baud rate to be change to either 19.8 or 38.4 kbs It should be noted that aftercompletion of a file transfer the baud rate will automatically be set back to 9600 in order for theMMTI software to communicate with the ARTU.+ V6.0A -.r aadio "~e +. .. .: ~~-ap .~a~.o 10376 .ic~oproce.8Or OK. SRA8 OK. :: Aa~ coda rile ~60..B8X V~ 0.0 Da~e 0./06/00 ~.025 8aDk 6 c.cotc..:: DS. coda rile 8D8.c.OA.B8X V~ 0.0 Date 03/27/00 12013 8aDk 2 c.c012'1:: .r~ coda Pile ..r~.OA.B8X V~ 0.0 Da~e 05/11/" 16.03 8aDk 1 c.c.20'C:: - coda rile --.~31C.B8X V~ 0.0 Date 0./2./'6 ~..27 8aDk 1 c.c.-:: 88410 .of~ i. DOt -_t1ng.+ ++ -.. ~e +: C-2000 - BOO!' - :I .. .: 1 - start. b4io 8oftware :: 2 - ~ Radio SOft-- ril_. :: 3 - rDi~iat.e - :: . - LO84 aadio SOf~ :: 5 - Ba~cb LO84 b4io SOf~ :: 6 - start. - fttorial :: 7 - c~igure - ~ .~ :: 1 - c~igure Batcb ~~ ..a4 aate :: ::8Dterc~(1-5.Qtoquit_).- :. I. I. I. .+ +The MMTI Boot Menu ScreenFigure 9.3.Rev 8Q.22
FCC ill: CDG-ARTU EXHIBIT CMAGNASTAR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM'--V'.OA.-r Radio ..~ +. II II II I. II I+ ++ r 8aDD ~ +: C-2000 -.r .- -- ~~~~ - :I II I: bur - - fil- into the queue . ~.~ . :: bt.r P%L B8X file to a-l0a4 f~ C:\~ (88C to q8it): ~.B8X :I .I .: bter - Di_.tic an fil- into tba QU"'. . -~.~ . :: bter P%L8DD.8D file to a-l0a4 f~ C:\~ (88C to QUit): ~.B8X :I II I: bter - appliceti- fil- tatoo tM QU"'. . U'fCc-.~ . :: 8ater P%L B8X file to a-l0a4 f~ C:\~ (8- to QUit): ~.B8X :I II I: ...ter - »8. fil.- into the QU"'. . .u..c-.B8X . :: ...ter P%L B8X file to a-l0a4 f~ C:\~ (88C to QUit): _pc.-.B8X :Figure 9.3.1.2. The MMTI Batch Software Download Menu Screen9.3.2 MMTI Commanded Mode - C-2000 MMT Radio Configuration MenuThe Radio Configuration menu is used to access ARTU databases and the Status screens. The MMT RadioConfiguration menu screen is shown in Figure 9.3.2.1. The ARTU must be in a "Locked Offline State"when using these commands. See the Radio/lnstallation menu for the information on state changes. Abrief description of each of the Radio Configuration menu selections is provided as follows:~--~-~"~~~ V,.OA .-r Radio "8POD ., C,, ; ',,': 0':,'II+ + -. ~ : C-2000 - aADZO ~_7ZC8 ~II: 1 - Lo84 8pee4-Dial Databa-: 2 - sa.. apee4-Dial Databa-: 3 - vi- Z_tO&'Y Databa..: . - ~ Paut COIIDt.8~.: 5 - 8DAbl./Di.abl. 8t.tU8 ap4at..: , - 8DAbl./Di.abl. n 8CL -, ,: 8Dt- a84io C-'ipratiOG _l8CtiOG (1 - I. -- ~ ~t -). - i. I. I, I. II,.~ .~ ~ +Figure 9.3.2. The MMT Radio Configuration Menu Screen.I) Load Speed-Dial Database - This command will load speed-dial database information from a file storedon the computer into the ARTU memory. The numerical portion of the filename root must matchthe numerical version number of the ARTC C-2000 software when loading the speed dialdatabase. See Save Speed-Dial Database. If the numerical portion of the filename root does notmatch the numerical version number of the ARTC software, then a DOS command whichmodifies the filename will need to be performed.2) Save Speed-Dial Database - This command will save the speed-dial database information stored in theARTU to a file on the computer. The user must provide a root for the filename in which theinformation is to be store in the computer memory. The numerical portion filename root willautomatically be tagged with the version number of the ARTC C-2000 software when using thiscommand.3) View Inventory Database - This command will display ARTU database the following information: theARTU electronic serial number, operational minutes and software subroutine version numbers.9-23 RevB
FCC 10: CDG-ARTU EXHIBIT CMAGNASTAR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM4) Report Fault Counters - This command will display the fault counter information stored in the ARTUnon-volatile memory. The ARTU will increment and store faults information if faults are detectedduring power-up or background BIT. The fault counter information will be displayed in the RadioResponses window as shown in Figure 9.3.2.2.5) Enable/Disable Status Updates - This command will enable the status screens. The status screens areused to monitor radio operation. There are two different status screens; the ARTU status screen asshown in Figure 9.3.2.3 and Pilot status screen as shown in Figure 9.3.2.4. After the screens areenable, they can be viewed by pressing the "FI" key. It is possible to toggle between the ARTUand Pilot screens by pressing "T". To return to the C-2000 MMT menus, press the "F2" key. Thestatus screen are updated once a second corresponding with the blinking word "update" at the topstatus screen.6) Enable/Disable RT RCL BER - This command will enable the Radio Control Link (RCL) Bit Error Rate(BER) counting. This command must be initiated prior to each ARTU transmission that BER is tobe viewed. The loop around test set-up must have a stable and accurate frequency reference inorder for this function to work.+ V&.OA -.r Radio Reep0a8e +: C-2000 nUL'r COUftD8: :: mcao..oc.saoa: 00000 nP_, 00000 sag: 00000 :: DPaM' 00000 8YaAK: 00000 -- BOPPLY: 00000 :: ova_, 00000 'IUD MJ8: 00000 UP lIP' 00000 :: 81, 00000 "SP DSP, 00000 ar ~ CO8V, 00000 :: X8IT IP, 00000 PA: 00000 acv IF: 00000 :: ar LOOP..cx, 00000 ~ LOOP..cK: 00000 .ox DSP' 00000 :+ ++ 8T _a Pr"-t +: C-2000 8T aADIO CO8PI_TI~ - :, ', .: 1 - ~ 8p.-4-Diel Dat8b8.- :: 2 - - 8p884-Dial Dat~ :: 3 - vi- I_tory Databa8e :: & - ~ halt C~t8r. :: 5 - 8D&ble/Di8&ble Statu. update. :: I - 8D&ble/Di8&ble aT acL ... I: :: 8Dter aa4io Ccmfiga&-ati- _l~i- (1 - I. -- to ~t -). - :, ', ., ., '+ +Figme 9.3.2.2. Fault Counter Infonnation As Display In The Radio Responses Window.RevB9-24
FCC ill: CDG-ARTU EXHIBIT CMAGNASTAR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM+ r Statu. ap4at +: Aircx.1t %D. 800001b Accouat ~s '002350'00 aa4io %D: .-&0001 :: (Pl...t-. to .ri- -) - ftA~S ('r-'rOftl. Stat- &cr.-) :: :: - US - Roc u~ Stat- :: i_t. - ~ 10 Adain: ~ Oper' ~ ::..S (488): -127.5 0.0 -81.0 A.ai1: 8Or DG v... %8a :: Dopp1.r (Sa): 0 -22 ::Oper Stat.: ~ ~ CODtr1so.L%88 ::TSC/ACC Stat.s OFF BaDdoff Stat.: ..11 ::Cb 'rot lOx6: 0 0 ::Cb 8&'r 10.3: 0 0 ::Cb ... : .000000 .000000 ~ switch: %8 II~L 'rot 10x3. 0 0 Taswac %D4icat_: ~ ::~L 8&'r: 0 0 O.ci11at_: II~'" : .000000 .000000 ::Baadoff aQ8T: ~ c.u %41.: 83' (CWa) ~ (%..~) :: :: vsc 1/1 U8C 1/3 U'fU C88 :lusc Stat.: 'f-opr 'f-opr call ~1. ~ ~ :: call ..f. 0 0 8CL. ~ ~ I'Bearer cap. ::. :-. C . '. .," ~r1. ,'. c .'"' ."fa ~r1. ,~ ~~~~ ~Figure 9.3.2.3. The ARTU Status Screen.+ r Statu. update +, ,, ,: (,.l...t-. to ~ior -) UW .I~ &'raWS _B (~le ftatua SO_) ::hbb8D4 1 2 3 , 5 , 7 I , 10 :: :: RaM 0 0 0 0 0 111 0 0 0 117 :: ...i.-t - Bl :: us (418) -127.5-127.5-127.5-127.5-127.5 -12.0-127.5-127.5-127.5 -10.0 :: Dopplar (B.) 0 0 0 0 0 -25 0 0 0 -22 :: Syac oor oor oor oor oor IB oor ~ oor IB :: Free ~C. 0 0 0 0 0 5 0 0 0 ':: .. .atb Lo.. 0 0 0 0 0 II 0 0 0 I' :: Call Statu. 0 0 0 0 0 ~ 1 0 0 0 ~ 1 :: Cell ~ 0 0 0 0 0 x. 1 0 0 0 x. 1 :: ~8C Awail Wt. 0 0 0 0 0 1 0 0 0 1:: Dopplar Wt. 0 0 0 0 0 0 0 0 0 0 :: ~ ~ Wt. 0 0 0 0 0 22 0 0 0 22 :: :: ~SI 30 25 20 15 10 5 1 .ilot acY :: .. ,. B B . B B B A B . B A . B B B . . . A . . . A . A . . I. Statua ::.. . ::.. . 3.~ ':, ,, ,, c', ,+ ~-~~~ ~ +Figure 9.3.2.4. The PILOT Status Screen.RevB9-25
FCC ID: CDG-ARTU EXHIBIT CMAGNASTAR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM9.3.3 MMTI Commanded Mode - C-2000 MMT Radio Installationffest MenuThe Installationffest menu is used to command the radio to perfonn may of the task necessary to check outa C-2000 installation. The MMT Radio Installationffest menu screen is shown in Figure 9.3.3.1. TheRadio Installationffest menu has three sub-menus in addition to the radio operational state changecommands. The sub-menus are the Commanded BIT. RF Test and the Handset Test menus. A briefdescription of each of the Radio/lnstallation menu selections is provided as follows:~ y. .0& -.7 aadio "8P0D888 +f I.1 :. I.. .. .~ .~ +'+ 87 - ~~ +: C-2000 -.7 UDIO I8~n~/"'" - :I .I .: ~ - ..~ aa4io Loc-.4/OffliAe :: 2 - ~o C_--"-" .z~ - ::J-~oUft.~- :: . - ~o ~~ ft.~ ..- :: 5 - ..~ aa4io VDl~/ODli- :: :: 8Dte~ -.dio ft.~ ..18C~iOD (~ - 5. .aa ~o exi~ >. - :. .. .. .. .. .. .+ ~ ~~.* +The MMT Radio InstallationITest Menu Screen.Figure 9.3.3.1) Set Radio Locked/Offline - The locked/offline command will change the operational state of the ARTU.The locked/offline state will allow the ARTU to perform individual tests associated with normaloperational functions. When the C-2000 is placed in the locked /offline mode, the Handset will nolonger respond to keypad inputs and the screen may go blank.2) Goto Commanded BIT Menu - The Commanded BIT menu is to be used for commanding the ARTU toperform BIT tests and to view BIT test results. See paragraph 9.3.3.1 for a brief description of theCommanded BIT menu selections.3) Goto RF Test Menu - The RF test menu is to be used to perform tests related to the Radio Frequency(RF) portion of the ARTU. See paragraph 9.3.3.2 for a brief description of the RF Test menuselections.4) Goto Handset Test Menu - The Handset test menu is to be used to perform tests related to Handsetoperation or high speed data bus portion of the ARTU. See paragraph 9.3.3.3 for a briefdescription of the Handset Test menu selections.5) Set Radio Unlocked/Online - The Unlocked/Online command will change the operational state of theARTU. The C-2000 will operate normally when the ARTU is in the Unlocked/Online State.RevB9-26
FCC ID: CDG-ARTU EXHIBIT CMAGNASTAR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEMA brief description oftbe9.3.3.1 C-2000 MMT Commanded BIT MenuThe MMT Commanded BIT menu screen is shown in Figure 9.3.3,Commanded BIT selections are as follows:0) View Results - By pressing zero, it is possible to view the BIT test results after BIT testing hascompleted.I) Full BIT - This command will cause the ARTU to run the Full Built-In-Test that is nonnally run uponpower-up.2) External TDM Loopback - This command will perform a test to check the transmit driver and the linereceiver of the high speed data bus interface. The transmit outputs (+ and -) must be physicallylooped back on the receive inputs in order for this test to pass.+ V&.OA ~ R84io ..~ +. I. I. .. .. .. .+ ++ ~ -.au ~ +I C-2000 .., ~~ .%~ - :t !: 1 - ..11 ax": 2 - -~ .,. roo.-k: : 8Bt.- ax" _l_t.i- (1 - 2. 0 t.o ri- ...~t." - t.o ~t. _)1 -IIII,,!Figme 9.3.3.1 The MMT Commanded BIT Menu Screen9.3.3.2 C-2000 MMT RF Test MenuThe MMT RF Test menu screen is shown in Figure 9.3.3.2.selections are as fo\lows:A brief description of the Commanded BIT1) Transmit Continuous Wave - This command will make the ARTU transmit a continuous wave signal.This command should be used when checking the ARTUs frequency accuracy. The transmitteroutput power level of the ARTU will be]O watts (+40 dBm) minimum with zero dB ofprogrammed attenuation.The user will be asked to enter the value of attenuation (0-40 dB). Also, the user will be askedwhat frequency to transmit on ( subband (1-10) and channel (1-29) or enter "0" for manual entrywith a resolution to 2 kHz).2) Transmit Random QAM - This command will make the ARTU transmit a modulated 16 QAM signal.The transmitter output power level of the ARTU will be ] 0 watts (+40 dBm) average power withzero dB of programmed attenuation. This QAM signal may have peak output power as high as 60wattsThe user will be asked to enter the value of attenuation (0-40 dB). Also, the user will be askedwhat frequency to transmit on (subband (]-10) and channel (]-29) or enter "0" for manual entrywith a resolution to 2 kHz).3) Stop Transmit - This command will cause the ARTU to stop transmitting. It will also disable a receiverif the receiver has been enabled.4) Enable TSC Receiver - This command will enable the TSC (voice channel) receiver. The user will beasked what frequency to tune the receiver (subband (]-]O) and channel (1-29) or enter "0" formanual entry with a resolution to 2 kHz).5) Enable Pilot Receiver - This command will enable the Pilot (pilot scanning) receiver. The user will beasked what frequency to tune the receiver (subband (]-]O) and channel (1-6) or enter "0" formanual entry with a resolution to 2 kHz).9-27 RevS
FCC 10: CDG-ARTU EXHIBIT CMAGNASTAR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM6) Perfonn Initial PA Equalization - This command perfo~ an equalization of the transmitter path. Thiscommand is required prior to every transmit and is automatically perfonned when the transmitCW or QAM commands are used.7) Perfonn P A Equalization Update - This command performs an equalization of the transmitter path whilethe ARTU is transmitting. This command is equivalent to a digital ALC loop for the transmitter.This command is automatically perfonned when the transmit CW or QAM commands are used.8) FAN Control (On/Auto) - This command can be used to turn the fan located on the ARTU MountingTray Fan to the "ON" condition. It can also be used to place the control of the fan in an automaticmode of operation in which the ARTU determines when the fan should operate. The ARTU basan internal temperature sensor which it uses to determine when to operate the fan. The fan shouldnormally operate when the temperature outside the ARTU is slightly below room temperature.The ARTU will also operate anytime the ARTU is in a Boot mode of operation.+ V6.0A.-r aa4io "8PQD8e8 +: :, ., ., ., .: I+ ++ ~ 8aDu ~t +: C-2000 .-r D - - :: :: 1 - 'rr..-it CODtia_. -- :: 2 - 'rr..-it ~ QAX{I 3 - St OP ~~ tJII --~ '. cI 6 - _le 'r8C _iv.r 1: 5 - 8II8hle .i1ot ..oeiv.r r: ,- "rfoza Initial .A 8qaali.eti~ :: 7 - hrfoza .A 8q1I8li..tiOD update :: 8 - r- C~trol (~/A1Ito) :: :: 8Dter ~.t ..lectiOD (1 - 8. ..0 to eait ). - :, ', ', ', '+ +The MMT RF Test Menu.Figure 9.3.3.2.'RevB9-28
FCC ID: CDG-ARTU EXHIBIT CMAGNASTAR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM9.3.3.3 C-2000 MMT Handset Test MenuThe MMT Handset Test menu screen is shown in Figure 9.3.33.Menu selections are as follows: A brief description of the Handset Test+ vt. OA .-r aadio ..~ +, ,I ff f, ff ,I ,+ ++ r ~U ~O8Pt +: C-2000 -.r BA88ft - - :, ,I ,: 1 - BaD48.t -.tea Call P.-ogre.. 7-.. :: 2 - 884io Qe-~.te4 Call P.-ogre.. -. :: 3 - ..tabli.h 8aD4..t LA8 :: t - t Baa48.t Att~ibat.. :: 5 - t ..iat--. AGO... pm :: :: 8Dt.~ 7e.t ..l.ctioa (1 - 5. 8ac to exit 88Du) I - :..:00Figure 9.3.3.3. The MMT Handset Test Menu Screen.1) Handset Generated Call Progress Tones - This command will cause a Handset to generate one of severalcall progress tone available as a feature of the Handset. These tones included: No Tone, FastBusy, Bong, Out-Of-Range, and Audible Call Alert. It should be noted that the Handset numberrefers to Handset LAN address and not to the interphone number.2 - Radio Generated Call Progress Tones - This command will cause the ARTU to generate one of severalcall progress tone available. These tones included: No Tone, Dial Tone, Busy Tone, RingbackTone, and Call Waiting Tone. It should be noted that the Handset number refers to Handset LANaddress and not to the interphone number.3 - Establish Handset LAN - This command is used to determine that the high speed data distribution bus(or LAN) is in sync with devices connected to the ARTU. It will also report the number ofHandsets and repeater devices connected to the LAN. It should be noted that this test treats allrepeater devices the same, i.e. CDBRs and AIUs. Also, a CAS will not be reported with this test.This test takes fifteen second to complete and display infonnation in the Radio Responseswindow. Figure 4.3.3.2 shows the MMT Radio Response window after performing the HandsetLAN test.4 - Reset Handset Attributes - This command will reset programmable attributes of the Handset to factorydefault values. It should be noted that this command will change values of Speaker Gain, CallAlerter Gain, Sidetone Gain, and DTMF Gain.5 - Reset Maintenance Access Passcode - The Maintenance Access Passcode is required to establish aMaintenance Session which will allow access to the Handset programmable features of the C-2000system. Resetting the Maintenance Access Passcode will set the Passcode to the factory defaultvalue of 0000.+ T &84io "8PQD8' +I .I .: - 78.t. 8rrABLI8B -- LU "_lt8' PUS :: 78 %a ~ :: 3 8a11488t. A88ig-a I: 2 cmaa pze_t :: C-2000 report.8 _i-iDV t...t. ~8B _87 ~ ped0C8e4. II .1 .+ +Figure 9.3.3.3.2. The MMT Radio Responses Window For The Handset LAN Tell9-29 RevB
FCC ill: CDG-ARTU EXHIBIT CMAGNASTAR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM9.3.3.4 C-2000 MMT Radio Maintenance Operations MenuThe MMT Maintenance Operations Menu screen is shown in Figure 9.3.3.4. A brief description oftbeRadio Maintenance Operations Menu selections are as follows:+ V..OA.-r Radio Re8p0D8 +I II II .I .I I, II :+ ~~~_.~ ++ r ~ ~ +I C-2000 -.r ~ - :: 1 - _0 Deboag _..: : bur c~ (1, Q to quit -, ,-, to -- to~. _)1-IIIIIIIIIFigure 9.3.3.4. The MMT Radio Maintenance Operations Menu.1) GoTo Debug Menu - The selection will allow the user to enable or disable the debug messagingcapabilities of the MMT. In general, the debug messages report the completion of software tasks while theARTU is operating.9.3.3.4.1 C-2000 MMT Debug Menu.The MMT Debug Menu screen is shown in figure 9.3.3.4.1. A brief description of the MMT Debug Menuselections are as follows:+ V&.OA ~ 88410 "-.0-' +I I. I. I. .I .. .. ,, ,+ ++ ~..au ~ +: C-2000 - ~ ~ :I ,I I: 1 - 8D&bl./Ui8&bl. All Debug ..g. :: 2 - Cl.- 'r88k Dabag WiDa-. I: 3 - a-i- La.~ 100 Debug :: j: 8D~ Dabag ..l8C~iOD (1 - 3. ..0 ~o exi~ ). - ;!Figure 9.3.3.4. The MMT Debug Menu Screens.1) Enable/Disable All Debug Msgs - This command will enable or disable the Debug message screens.When enabling the Debug message screens the user will be asked if Debug log files are to becreated as shown in Figure 9.3.3.4.2. It is also possible to store the ARTU and Pilot Status screensin a log format and to play back these screens. These log files will store the information in files onthe computer hard drive. To close the log files the Debug messages must be disabled. It should benoted that enabling the log files will use up space on the hard drive with the ARTU Status andPilot screen generating most of the stored information2) Clear Task Debug Windows - This command will clear all task Debug message screens.3) Review Last 100 Debug Messages - This command will allow the user to scroll the last 100 Debugmessages that were stored in a log file.RevB9-30
FCC ID: CDG-ARTU EXHIBIT CMAGNAST AR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM+ vt. 0& ~ -.4io ..~ +-r---'fI: Global d8bQV -- DI8UL8D. 1It: '.i::::::::::::::::::::::::::::::::;;;-;;~-~;::::::::::::::::::::::::::::::::'fI: 0 - Di8abl. All D8!IQg "88 1 - ~l. All D8bag ..g. 1: t: Di8abl./~l. All D8!1Qg"'. (0 - 1, ..C to exit 88DD)' 1 :I .I .: Do ~ ri8la to Log d8bIag to bar4 41u? (T or 8). Y II II I: 8Dter fil8D888 of aebug log fil.. 788tflight.log :: Do ~ ri8la to ft-. ~ 8tat.8 (. ftC) Qp48t..? (T or 8). 8 :: Do you ri8la to Store pilot 8tat.8 (.PIL) Qp48t88? (T or 8). 8 :I .I II II II .I II II I+ +Figure 9.3.3.4.2. Debug Message Log File Enable Screen.RevB9-31
FCC ill: CDG-ARTU EXHIBff CMAGNASTAR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM9.4 Handset Text MessagesThe MagnaStar system provides infonnation screens that display text messages on the digital handset LCDdisplay if the radio detects certain types of operational problems. These text messages are intended to helpthe user determine why a call may not be placed or why a call may have been interrupted and what possibleaction to take to correct the problemThere are several handset text message that may be displayed indicating that the ARTU hasdetected an abnonnal condition and has taken some type of corrective action. Typically thecorrective action taken is that the ARTU will reload software. These types of handset textmessages normally indicate that the ARTU is not broken and does not need to be replaced. If theproblem reoccurs and cannot be cleared, then reboot the ARTU. This can be accomplished bypulling the circuit breaker an removing power for greater than IS seconds. This infonnationapplies to the following three handset text message screens:Channel -LimitedTo OneCallModeswitchoverFailureServiceRecoveryFailureHang UpAll CallsAnd RedialTo AcquireAnotherC~~J,--h-DialRe-DialTwo handset text messages are shown below that may be displayed if a telephone connection isabnonnally tenninated. These messages do not nonnally indicated an aircraft system fault unlessrepeated occurrence of this type of condition exists.There are several reasons hand-off failures or abnormal call tenninations can occur. They may becaused by poor radio link conditions, antenna blockage, radio frequency interference, base stationcoverage problems because operation is below 18,000 feet, or ground network proble~. If anaircraft is experiencing excessive call hand-off failures, then it is suggested to first check the RFcabling and antenna installation on the aircraft. Check for damaged coaxial cables shields or loosecoaxial cable connectors, especially the SMA connectors on the duplexer.RadioSignalLostCallHandoffFailureRe-Dial Re-DialRevB9-32
FCC ill: CDG-ARTU EXHIBIT CMAGNAST AR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEMThe radio fault handset text message shown below will display a three digit code if the ARTUdetects a built in test fault. The red fault indicator on the front of the unit will also be illuminatedif this message appears. The fault codes may be an even or an odd number. Even numbered faultcodes indicate that the ARTU has experienced a recoverable fault. The fault may clear itselfwithin a few minutes. If the problem does not clear itself, then reboot the ARTU. This can beaccomplished by pulling the circuit breaker an removing power for greater than 15 seconds. If theproblem reoccurs, then the ARTU should be replaced. Odd numbered faults indicate a non-recoverable fault and usually indicate an intermittent or broken ARTU. Intermittent problems maybe cleared by cycling power for greater than 15 seconds. If an ARTU is replaced, please includethe reported fault code and any other relevant information with the unit to explain the reason forunit replacement.RadioFaultxxxThe waiting on system warm-up handset text message shown below will be displayed when thesystem is first powered up and has just completed built in test. The system warm-up is to allowthe ARTU reference oscillator to warm-up and meet the frequency accuracy required for thesystem. This warm-up time lasts for four minutes after the system completes power-up built intest.The radio overternp fault handset text message shown below will be displayed if the radio detectsan abnormal over temperature problem The ARTU has over temperature protection and will shutdown if this occurs. The ARTU will automatically recover once the unit has cooled down. Thismessage will only be displayed for a short time prior to the ARTU shutting down.RadioOVertempFaultWaiting onSystemWarm-upCheck Fan9-33 RevB
FCC ill: CDG-ARTU EXHIBIT CMAGNASTAR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEMThe status code handset text message shown below will be displayed for abnormal call releasesdue to software coding problems or unanticipated race conditions. This screen would not indicatea hardware problemStatusCodexxxRedialThe check CDBR cabling handset text message as shown below will be displayed when the ARTUdetects a synchronization problem on the LAN bus between the ARTU and the LAN repeaters.Typically this fault condition occurs because of cabling problems. The most common cause ofthis problem are wrong wiring or pinched wiring in the backshell. The ARTU and LAN repeaterscan also be damaged if a LAN repeater is inadvertently connected up backwards, resulting in thesame type of fault. LAN repeaters can be damaged if no cable strain relief is provided in theinstallation and may cause intermittent operation or latent faults. See paragraph 9.1.8 and 9.2.1 forMMT troubleshooting test for intermittent fault testing.RevB9-34
FCC ill: CDG-ARTU EXHIBIT CMAGNASTAR C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEMThe temporary service disruption handset text message is generated by the handset itself and doesnot originate from the ARTU as do all other handset messages. This message is generated by thehandset if power and ground are present but the handset is missing the clock, sync or data. Themessage may also appear if the data to the handset is corrupted. If this message appears, check toverify that the ARTU has not detected a fault condition or is running power-up BIT. This can bedone by viewing the fault (red) light on the front of the ARTU. If the ARTU fault light isilluminated then a fault has been detected or is running power-up BIT. Power-up BIT should nottake longer than five minutes to complete. If after enough time has passed to allow power-up BITto complete, then the handset text message would be displayed because of a fault with the ARTU.If the temporary service disruption handset text message is present and the ARTU fault light is notpresent, then check the handset and CDBR cabling in the aircraft..TEMPORARYSERVICEDISRUPTIONRevS9-35

Navigation menu