Garmin 0060200 AIRCRAFT MOUNTED WEATHER RADAR TRANSMITTER User Manual Cover Rev1

Garmin International Inc AIRCRAFT MOUNTED WEATHER RADAR TRANSMITTER Cover Rev1

Contents

INSTALLATION MANUAL

The following fi les have been archived under the aboce ARCHIVE FILENAME.Filename File ContentsDate:Drafter:Checker:Project Engineer:Released By:TITLE:PART NO:SIZEAScale: N/AREV.Page ofREVISIONSSPECIFICATIONCONTROLDRAWING REV. DATE DESCRIPTION ECO NO.Garmin Ltd. or its subsidiariesc/o Garmin International, Inc.1200 E. 151st StreetOlathe, Kansas 66062 U.S.A.CONFIDENTIALThis drawing and the specifi cations contained herein are the property of Garmin Ltd. or its subsidiaries and may not be reproduced or used in whole or in part as the basis for manufacture or sale of products without written permission .30190-00286-01.pdf 190-00286-01.pdf 190-00286-01GWX 68 Installation Manual1 1 36GWX 68 Installation Manual5 1 5/12/05 Preliminary Release ---------NOTES:1. DESCRIPTION: Installation Documentation - 2. PAGE SIZE: Letter: Width = 8.5 inches, Height = 11 inches Tabloid: Width = 11.0 inches, Height = 17.0 inches3. PAGINATION: double-sided letter sheets. single-sided tabloid sheets.4. MATERIAL: 24 pound bond. Approved equivalents allowed.5. COLOR: Black Ink on White Paper Stock. 6. BINDERY: Three-hole punch, shrink-wrap. Digital output preferred7. FOLDS: Z-Fold tabloid sheets at end of document.8. ELECTRONIC ARTWORK: Shall Conform to Garmin Archive, Filename: Portable Document Format, contains Installation Manual and Release Specifi cationrelease.indd Adobe InDesign Format, Release Specifi cationManual Elements Word 97 for PC, Formatted Files and Figures*.* Various supporting illustrations, drawings, and artwork. 8.5"11"3-Hole PunchGWX 68Installation ManualDER REVIEW REQUIRED
Garmin P/N 190-00286-01 May, 2005 Preliminary Revision 1PreliminaryGWX 68Installation Manual
Page A GWX 68 Installation ManualPreliminary Revision 1 190-00286-01© Copyright 2005Garmin Ltd. or its subsidiariesAll Rights ReservedExcept as expressly provided herein, no part of this manual may be reproduced, copied, transmitted,disseminated, downloaded or stored in any storage medium, for any purpose without the express priorwritten consent of Garmin. Garmin hereby grants permission to download a single copy of this manualand of any revision to this manual onto a hard drive or other electronic storage medium to be viewed andto print one copy of this manual or of any revision hereto, provided that such electronic or printed copy ofthis manual or revision must contain the complete text of this copyright notice and provided further thatany unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited.Garmin International, Inc.1200 E. 151st StreetOlathe, KS 66062 USATelephone: 913-397-8200Aviation Dealer Technical Support Line (Toll Free): (888) 606-5482www.garmin.comGarmin (Europe) Ltd.Unit 5, The QuadrangleAbbey Park Industrial EstateRomsey, SO51 9DL U.K.44/0870.851241RECORD OF REVISIONSRevision RevisionDateDescription ECO #1 5/12/05 Initial Release --------DOCUMENT PAGINATIONSection Page RangeTable of Contents i - viSection 1 1-1 – 1-6Section 2 2-1 – 2-2Section 3 3-1 – 3-10Section 4 4-1 – 4-4Appendix A A-1 – A-2Appendix B B-1 – B-8
GWX 68 Installation Manual Page i190-00286-01 Preliminary Revision 1This manual reflects the operation of software version TBD. Some differences in operation may beobserved when comparing the information in this manual to earlier or later software versions.INFORMATION SUBJECT TO EXPORT CONTROL LAWSThis document may contain information which is subject to the Export Administration Regulations("EAR") issued by the United States Department of Commerce (15 CFR, Chapter VII, Subchapter C) andwhich may not be exported, released, or disclosed to foreign nationals inside or outside of the UnitedStates without first obtaining an export license. A violation of the EAR may be subject to a penalty of upto 10 years imprisonment and a fine of up to $1,000,000 under Section 2410 of the Export AdministrationAct of 1979. Include this notice with any reproduced portion of this document.WARNINGThis product, its packaging, and its components contain chemicals known to the State ofCalifornia to cause cancer, birth defects, or reproductive harm. This Notice is beingprovided in accordance with California's Proposition 65. If you have any questions orwould like additional information, please refer to our web site atwww.garmin.com/prop65.WARNINGThis radar device produces microwave radiation.DO NOT OPERATE THIS DEVICE UNTIL ALL SAFETYPRECAUTIONS AND INSTRUCTIONS IN THEOPERATING AND INSTALL MANUALS HAVE BEENREAD.IMPROPER USE OR EXPOSURE MAY RESULT INBODILY INJURY.CAUTIONAll personnel should remain the prescribed “safe distance”from this radar.Never expose any part of the body to an unterminatedwaveguide.
Page ii GWX 68 Installation ManualPreliminary Revision 1 190-00286-01SAFE DISTANCE DETERMINATIONThe following information establishes a minimum safe distance from the antenna for personnel near anoperating airborne weather radar. The minimum safe distance is based upon the FCC’s exposure limit at9.3 to 9.5 GHz for general population/uncontrolled environments which is 1 mW/cm2. See AC 20-68Bfor more information on safe distance determination.Antenna Size Safe Distance10” 9.16 ft12” 10.8 ftMAXIMUM PERMISSIBLE EXPOSURE LEVEL (MPEL)The zone in which the radiation level exceeds the US Government standard of 1 mW/cm2, is the semi-circular area of at least 9.16 ft from the 10” antenna and 10.83 ft from the 12” antenna as indicated in theillustration below. All personnel must remain outside of this zone. The distance to the MPEL boundaryis calculated upon the basis of each antenna available with the GWX 68 system, rated output power of thetransmitter, and in the non-rotating or boresight position of the antenna (see example calculations above).With a scanning or rotating beam, the averaged power density at the MPEL boundary is significantlyreduced.MPELBoundaryRadomeCenter Line ofAircraft10.83 ft for 12” ant9.16 ft for 10” antAntenna
GWX 68 Installation Manual Page iii190-00286-01 Preliminary Revision 1GENERAL PRECAUTIONSAirborne weather radar should be operated on the ground only by qualified personnel.Installed airborne radar should not be operated while the aircraft is in a hanger or other enclosure unlessthe radar transmitter is not operating, or the energy is directed toward an absorption shield whichdissipates the radio frequency energy. Otherwise, radiation within the enclosure can be reflectedthroughout the area.BODY DAMAGETo prevent possible human body damage, the following precautions should be taken:1. Personnel should never stand nearby and in front of a radar antenna which is transmitting. When theantenna is not scanning, the danger increases.2. The recommended safe distance which is established above should be followed. The distance fromany person to the radar should be greater than that distance.3. Personnel should be advised to avoid the end of an open waveguide unless the radar is turned off.4. Personnel should be advised to avoid looking into a waveguide, or into the open end of a coaxialconnector or line connector to a radar transmitter output, as severe eye damage may result.5. Personnel should be advised that when high power radar transmitters are operated out of theirprotective cases, X-rays may be emitted. Stray X-rays may emanate from the glass envelope typepulser, oscillator, clipper, or rectifier tubes, as well as magnetrons.COMBUSTIBLE MATERIALSTo prevent possible fuel ignition, an installed airborne weather radar should not be operated while anaircraft is being refueled or defueled.
Page iv GWX 68 Installation ManualPreliminary Revision 1 190-00286-01TABLE OF CONTENTSPARAGRAPH PAGE1 GENERAL DESCRIPTION..............................................................................................................1-11.1 Introduction........................................................................................................................................1-11.2 Equipment Description ......................................................................................................................1-11.3 Interface Summary.............................................................................................................................1-11.4 Technical Specifications ....................................................................................................................1-11.5 License Requirements........................................................................................................................1-31.6 Certification .......................................................................................................................................1-41.7 Reference Documents ........................................................................................................................ 1-41.8 Limited Warranty...............................................................................................................................1-52 INSTALLATION OVERVIEW ........................................................................................................2-12.1 Introduction........................................................................................................................................2-12.2 Installation Materials .........................................................................................................................2-12.3 Installation Considerations ................................................................................................................2-12.4 Cabling and Wiring............................................................................................................................2-22.5 Cooling Requirements .......................................................................................................................2-22.6 Mounting Requirements ....................................................................................................................2-23 INSTALLATION PROCEDURE......................................................................................................3-13.1 Unpacking Unit..................................................................................................................................3-13.2 Wiring Harness Installation ...............................................................................................................3-13.3 Backshell Assemblies and D-Subminiature Connectors....................................................................3-23.4 Unit Installation ...............................................................................................................................3-103.5 Post Installation Configuration & Checkout....................................................................................3-103.6 Continued Airworthiness .................................................................................................................3-104 SYSTEM INTERCONNECTS..........................................................................................................4-14.1 Pin Function List................................................................................................................................4-14.2 Power .................................................................................................................................................4-24.3 Serial Data .........................................................................................................................................4-34.4 Configuration.....................................................................................................................................4-34.5 Auto Pilot...........................................................................................................................................4-3APPENDIX A: OUTLINE & INSTALLATION DRAWINGS.............................................................. A-1APPENDIX B: INTERCONNECT EXAMPLE....................................................................................... B-1
GWX 68 Installation Manual Page v190-00286-01 Preliminary Revision 1LIST OF ILLUSTRATIONSFIGURE PAGE3-1 Shield Block Install onto Backshell Connector Assembly ................................................................3-33-2 Shielded Cable Preparation................................................................................................................3-43-3 Daisy Chain Method for Shield Termination.....................................................................................3-73-4 Parallel Shield Termination ...............................................................................................................3-83-5 Configuration Module Installation.....................................................................................................3-9A-1 GWX 68 Outline Drawing................................................................................................................A-1B-1 GWX 68 Typical G1000 Interconnect Wiring Diagram................................................................... B-1B-2 GWX 68 Typical MX20 Interconnect Wiring Diagram ................................................................... B-3B-3 GWX 68 Analog Stabilization Interconnect Wiring Diagram.......................................................... B-5B-4 GWX 68 AHRS Stabilization Interconnect Wiring Digram............................................................. B-7LIST OF TABLESTABLE PAGE3-1 Pin Contact Part Numbers..................................................................................................................3-13-2 Recommended Crimp Tools ..............................................................................................................3-13-3 Backshell Assembly...........................................................................................................................3-23-4 Shield Block Components .................................................................................................................3-33-5 Shielded Cable Preparation................................................................................................................3-43-6 Configuration Module Kit – 011-00979-00.......................................................................................3-83-7 Configuration Module Wire Color Reference Chart..........................................................................3-9
Page vi GWX 68 Installation ManualPreliminary Revision 1 190-00286-01GWX 68 HARDWARE MOD LEVEL HISTORYThe following table identifies hardware modification (Mod) Levels for the GWX 68. Mod Levels arelisted with the associated service bulletin number, service bulletin date, and the purpose of themodification. The table is current at the time of publication of this manual (see date on front cover) and issubject to change without notice. Authorized Garmin Sales and Service Centers are encouraged to accessthe most up-to-date bulletin and advisory information on the Garmin Dealer Resource web site atwww.garmin.com using their Garmin-provided user name and password.MODLEVELSERVICEBULLETINNUMBERSERVICEBULLETINDATEPURPOSE OF MODIFICATION
GWX 68 Installation Manual Page 1-1190-00286-01 Preliminary Revision 11 GENERAL DESCRIPTION1.1 IntroductionThis manual presents mechanical and electrical installation requirements for installing the GWX 68Airborne Weather Radar.NOTEThe ability of a weather radar system to accurately display weather returns is highlydependent upon the quality of the radome and its Transmission Efficiency. The specifiedperformance of the GWX 68 Airborne Weather Radar can be achieved when installedbehind a DO-213 Class A Radome within the RF window defined as +-45 degrees fromdead ahead in azimuth and +-15 degrees from dead ahead in elevation. Refer to RTCAdocument DO-213 Class A for minimum operational performance standards for nosemounted radomes.1.2 Equipment DescriptionThe GWX 68 Airborne Weather Radar is a microprocessor-based Line Replaceable Unit (LRU) thatoutputs weather radar data to an external MFD. The GWX 68 communicates with other LRUs viaARINC 429/453 and/or Ethernet high speed data bus (HSDB).CAUTIONThe operation of ground-based cellular telephones or other ground-based cellular devicesaboard aircraft while airborne is prohibited by FCC rules. Due to the potential forinterference with onboard systems, the operation of ground-based cellular communicationdevices while onboard an aircraft that is on the ground is subject to FAA regulations 14CFR 91.21.FCC regulation 47 CFR 22.925 prohibits airborne operation of ground-based cellulartelephones installed in or carried aboard aircraft. Ground-based cellular telephones mustnot be operated aboard any aircraft while the aircraft is off the ground. When any aircraftleaves the ground, all ground-based cellular telephones on board that aircraft must beturned off.Ground-based cellular telephones that are on, even in a monitoring state, can disrupt GPSperformance.1.3 Interface SummaryThe GWX 68 is designed as an open architecture system that uses typical ARINC 429, ARINC 453, andEthernet communications interfaces.1.4 Technical Specifications1.4.1 Environmental Qualification FormIt is the responsibility of the installing agency to obtain the latest revision of the GWX 68 EnvironmentalQualification Form. This form is available directly from Garmin under the following part number:GWX 68 Environmental Qualification Form, Garmin part number 005-00171-00To obtain a copy of this form, see the dealer/OEM portion of the Garmin web site (www.garmin.com).
Page 1-2 GWX 68 Installation ManualPreliminary Revision 1 190-00286-011.4.2 Physical CharacteristicsCharacteristics SpecificationsUnit Size See Figure A-1. GWX 68 Outline DrawingUnit weight 10" – 9.0 lbs (4.08 kg)12" – 9.1 lbs (4.13 kg)1.4.3 General SpecificationsThe table below contains general environmental specifications. For detailed specifications, see theEnvironmental Qualification Form (005-00171-00).Characteristics SpecificationsOperating Temperature Range -55°C to +70°C. For more details see EnvironmentalQualification Form.Humidity 95% non-condensingAltitude Range -1,500 ft to 50,000 ft1.4.4 Performance SpecificationsCharacteristics SpecificationsDisplay Colors 4 ColorsSelectable Ranges 2.5, 5, 10, 20, 40, 80, 160, 320nmWeather Avoidance Range 305nm w/ 12” Ant.270nm w/ 10” Ant.Performance Index 213dB w/ 12” Ant.210dB w/ 10” Ant.Rx Sensitivity -110 dBm MDSManual Gain +12 to –64dBAntenna Beamwidth 7.8° w/ 12” Ant.9.0° w/ 10” Ant.Magnetron Power 6.5kW nominal5kW minimumPulse Width 1 or 4 µSScan Angle Pilot adjustable – 20, 40, 60 or 90°Scan Centerline Pilot adjustableScan Rate 12 looks/minuteManual Tilt ±15°Stabilization ±30° combined pitch and rollAltitude 50k Ft unpressurizedSTC Effective to 80nmExtended STC 80nm to 320nmInterface Garmin HSDB/ARINC 429/ARINC 453
GWX 68 Installation Manual Page 1-3190-00286-01 Preliminary Revision 11.4.5 Power RequirementsCharacteristics SpecificationsInput Voltage Range 14/28 Vdc See the Environmental Qualification Form fordetails on surge ratings and minimum/maximum operatingvoltages.Input Current 2A @ 28V, maximum1.5 License RequirementsThe Telecommunications Act of 1996, effective February 8, 1996, provides the FCC discretion toeliminate radio station license requirements for aircraft and ships. The GWX 68 installation must complywith current transmitter licensing requirements. To find out the specific details on whether a particularinstallation is exempt from licensing, please visit the FCC web site http://wireless.fcc.gov/aviation.If an aircraft license is required, make application for a license on FCC form 404, Application for AircraftRadio Station License. The FCC also has a fax-on-demand service to provide forms by fax. TheGWX 68 owner accepts all responsibility for obtaining the proper licensing before using the transponder.CAUTIONThe transmitter in this equipment is guaranteed to meet Federal CommunicationsCommission acceptance over the specified operating temperature range. Modifications toGarmin equipment not expressly approved by Garmin could invalidate the license andmake it unlawful to operate the equipment.
Page 1-4 GWX 68 Installation ManualPreliminary Revision 1 190-00286-011.6 CertificationThe conditions and tests required for TSO approval of this article are minimum performance standards. Itis the responsibility of those installing this article either on or within a specific type or class of aircraft todetermine that the aircraft installation conditions are within the TSO standards. TSO articles must haveseparate approval for installation in an aircraft. The article may be installed only if performed under 14CFR part 43 or the applicable airworthiness requirements. At the time of publication, installations of thisTSO approved article are only approved when installed in an aircraft as part of a Garmin G1000 system.1.6.1 TSO/ETSO ComplianceTSO-C63c Class 71.7 Reference DocumentsThe following publications are sources of additional information for installing the GWX 68. Beforeinstalling the GWX 68, the technician should read all referenced materials along with this manual.Part Number Document190-00303-00 G1000 System Installation Manual560-1025-09 MX20 Multi-Function Display Installaltion Manual
GWX 68 Installation Manual Page 1-5190-00286-01 Preliminary Revision 11.8 Limited WarrantyThis Garmin product is warranted to be free from defects in materials or workmanship for two years fromthe date of purchase. Within this period, Garmin will at its sole option, repair or replace any componentsthat fail in normal use. Such repairs or replacement will be made at no charge to the customer for parts orlabor, provided that the customer shall be responsible for any transportation cost. This warranty does notcover failures due to abuse, misuse, accident or unauthorized alteration or repairs.THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND IN LIEU OFALL OTHER WARRANTIES EXPRESS OR IMPLIED OR STATUTORY, INCLUDING ANYLIABILITY ARISING UNDER ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR APARTICULAR PURPOSE, STATUTORY OR OTHERWISE. THIS WARRANTY GIVES YOUSPECIFIC LEGAL RIGHTS, WHICH MAY VARY FROM STATE TO STATE.IN NO EVENT SHALL GARMIN BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT ORCONSEQUENTIAL DAMAGES, WHETHER RESULTING FROM THE USE, MISUSE, ORINABILITY TO USE THIS PRODUCT OR FROM DEFECTS IN THE PRODUCT. Some states do notallow the exclusion of incidental or consequential damages, so the above limitations may not apply toyou.Garmin retains the exclusive right to repair or replace the unit or software or offer a full refund of thepurchase price at its sole discretion. SUCH REMEDY SHALL BE YOUR SOLE AND EXCLUSIVEREMEDY FOR ANY BREACH OF WARRANTY.To obtain warranty service, contact your local Garmin Authorized Service Center. For assistance inlocating a Service Center near you, call Garmin Customer Service at one of the numbers shown below.Products sold through online auctions are not eligible for rebates or other special offers from Garmin.Online auction confirmations are not accepted for warranty verification. To obtain warranty service, anoriginal or copy of the sales receipt from the original retailer is required. Garmin will not replace missingcomponents from any package purchased through an online auction.Garmin International, Inc. Garmin (Europe) Ltd.1200 East 151st Street Unit 5, The Quadrangle, Abbey Park Industrial EstateOlathe, Kansas 66062, U.S.A. Romsey, SO51 9DL, U.K.Phone: 913/397.8200 Phone: 44/0870.851241FAX: 913/397.8282 FAX: 44/0870.851251
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GWX 68 Installation Manual Page 2-1190-00286-01 Preliminary Revision 12 INSTALLATION OVERVIEW2.1 IntroductionThis section provides hardware equipment information for installing the GWX 68, related hardware, andantennas. Installation of the GWX 68 should follow the aircraft TC or STC requirements. Cabling isfabricated by the installing agency to fit each particular aircraft. The final installation must meet therequirements of FAA AC 43.13-1B and AC 43.13-2A.2.2 Installation MaterialsThe GWX 68 is available under the following part number:Item Catalog P/NGWX 68 Unit Only, (011-00883-00) 010-00299-00GWX 68 Standard, (011-00883-00) * 010-00300-00*Includes installation kit (011-01114-00).2.3 Installation ConsiderationsFabrication of a wiring harness is required. Sound mechanical and electrical methods and practices arerequired for installation of the GWX 68.2.3.1 Antenna ConsiderationsAntenna installations on pressurized cabin aircraft require FAA approved installation design andengineering substantiation data whenever such antenna installations incorporate alteration (penetration) ofthe cabin pressure vessel by connector holes and/or mounting arrangements. For needed engineeringsupport pertaining to the design and approval of such pressurized aircraft antenna installations, it isrecommended that the installer proceed according to any of the following listed alternatives:1. Obtain approved antenna installation design data from the aircraft manufacturer.2. Obtain an FAA approved STC, pertaining to, and valid for the antenna installation.3. Contact the FAA Aircraft Certification Office in the appropriate Region and request identificationof FAA Designated Engineering Representatives (DERs) who are authorized to prepare andapprove the required antenna installation engineering data.4. Obtain FAA Advisory Circular AC-183C and identify a DER from the roster of individuals in it.5. Contact an aviation industry organization such as the Aircraft Electronics Association forassistance.
Page 2-2 GWX 68 Installation ManualPreliminary Revision 1 190-00286-012.4 Cabling & WiringUse AWG #24 or larger wire for all connections unless otherwise specified by the aircraft manufactureror Garmin. The standard pin contacts supplied in the connector kit are compatible with up to AWG #22wire. In cases where some installations have more than one unit sharing a common circuit breaker, sizingand wire gauge is based on aircraft circuit breaker layout, length of wiring, current draw of units, andinternal unit protection characteristics. Do not attempt to combine more than one unit on the same circuitbreaker unless it is specified on aircraft manufacturer approved drawings.In these cases, a larger gauge wire such as AWG #18 or #16 may be needed for power connections. Theprovided connector kit supplies extended barrel contacts for AWG #16 and #18 wire, if required. Specialthin-wall heat shrink tubing is also provided to insulate the extended barrels inside the backshell. If usingAWG #16 or #18 barrel contacts, ensure that no two contacts are mounted directly adjacent to each other.This minimizes the risk of contacts touching and shorting to adjacent pins and to ground.Ensure that routing of the wiring does not come in contact with sources of heat, RF or EMI interference.Check that there is ample space for the cabling and mating connectors. Avoid sharp bends in cabling androuting near aircraft control cables.2.5 Cooling RequirementsThe GWX 68 does not have provisions for attaching cooling air and does not generate an excessiveamount of heat during typical operations, however thermal characteristics of the installation shouldalways be assessed. An undesirable thermal condition could be created due to the unit’s own internalpower dissipation combined with restricted ventilation, or due to heat generated by adjacent equipment.Limiting thermal build up, by means of fan or natural convection is always good practice andrecommended to increase the product life.2.6 Mounting RequirementsThe GWX 68 mounting surface must be capable of providing structural support and electrical bond to theaircraft to minimize radiated EMI and provide protection from High-Intensity Radiation Fields (HIRF).
GWX 68 Installation Manual Page 3-1190-00286-01 Preliminary Revision 13 INSTALLATION PROCEDURE3.1 Unpacking UnitCarefully unpack the equipment and make a visual inspection of the unit for evidence of damage incurredduring shipment. If the unit is damaged, notify the carrier and file a claim. To justify a claim, save theoriginal shipping container and all packing materials. Do not return the unit to Garmin until the carrierhas authorized the claim.Retain the original shipping containers for storage. If the original containers are not available, a separatecardboard container should be prepared that is large enough to accommodate sufficient packing materialto prevent movement of the item within the container.3.2 Wiring Harness InstallationAllow adequate space for installation of cables, connectors, and strain relief as necessary. The installershall supply and fabricate all of the cables. All wiring must be in accordance with FAA AC 43.13-1B.All electrical connections are made through a 44-pin D subminiature connector. Section 4 defines theelectrical characteristics of all input and output signals. Required connectors and associated hardware aresupplied with the connector kit.See Appendix C for examples of interconnect wiring diagrams. Construct the actual harnesses inaccordance with aircraft manufacturer authorized interconnect standards.Table 3-1. Pin Contact Part Numbers44 pin D-Subminiature connector (P400)Manufacturer 16 AWG(Power Only)18 AWG(Power Only)20 AWG 22-28 AWGGarmin P/N 336-00044-01 336-00044-00 336-00044-02 336-00021-00Military P/N N/A N/A N/A M39029/58-360AMP N/A N/A N/A 204370-2Positronic N/A N/A N/A MC8522DITT Cannon N/A N/A N/A 030-2042-000Table 3-2. Recommended Crimp Tools16, 18 & 20 AWG 22-28 AWGManufacturer HandCrimping Tool Positioner Insertion/ExtractionTool(note 2)Positioner Insertion/ExtractionToolMilitary P/N M22520/2-01 N/A M81969/1-04 M22520/2-09 M81969/1-04Positronic 9507 9502-11 M81969/1-04 9502-3 M81969/1-04ITT Cannon 995-0001-584 N/A N/A 995-0001-739 N/AAMP 601966-1 N/A 91067-1 601966-6 91067-1Daniels AFM8 K774 M81969/1-04 K42 M81969/1-04Astro 615717 N/A M81969/1-04 615725 M81969/1-04
Page 3-2 GWX 68 Installation ManualPreliminary Revision 1 190-00286-01NOTES1. Non-Garmin part numbers shown are not maintained by Garmin and consequently are subjectto change without notice.2. Extracting the #16, #18 and #20 contact requires that the expanded wire barrel be cut off fromthe contact. It may also be necessary to push the pin out from the face of the connector whenusing an extractor due to the absence of the wire. A new contact must be used whenreassembling the connector.3.3 Backshell Assembly and D-Subminiature ConnectorsThe GWX 68 connector kit (011-01114-00) includes one Garmin backshell assembly. Garmin’sbackshell connectors give the installer the ability to quickly and easily terminate shield grounds at thebackshell housing using the Shield Block ground kit. The term ‘D-Sub’ (D-Subminiature) connectorshave a letter “D” physical shape. D-Sub refers only to the polarized shell that holds the contacts (pins orsockets) in place. Table 3-3 lists Garmin part numbers for the GWX 68 D-Sub Connectors and theBackshell Assembly.Table 3-3. Backshell AssemblyFigure Ref Description Garmin P/N1 Cast Housing (From Garmin Backshell kit.) 125-00085-002 Shield block 117-00147-xx3Screw, 4-40 x.250, FLHP100°, SS/P, Nylon. 211-63234-084Multiple Conductor Shielded Cable(See Interconnect Diagrams, Appendix C)As Required5 Shield Termination As Required6 Braid, Flat (19 – 20 AWG equivalent, tinnedplated copper strands 36 AWG, Circular MilArea 1000 – 1300)As Required7 Shrink Tubing As Required8 Pins 336-00021-009Ring terminal, #8, insulated, 18-22 AWG,14-16 AWG, 10-12 AWGMS25036-149,MS25036-153,MS25036-15610 Screw, PHP, 8-32x.312", Stainless or CadPlated SteelMS51957-42,MS35206-24211 Split Washer, #8, (.045" compressedthickness) Stainless or Cad-plated steelMS35338-137,MS35338-4212 Flat Washer, #8, .032" thick, .174"ID, .375"OD, Stainless or Cad Plated SteelNAS1149CN832R,NAS1149FN832P13 Silicon Fusion Tape 249-00114-0014 Strain Relief 115-00499-xx15 Screw,4-40x.375,PHP,SS/P,w/Nylon 211-60234-1016 Lid 115-00500-xx17 Screw,4-40x.187,FLHP100,SS/P,w/Nylon 211-63234-06
GWX 68 Installation Manual Page 3-3190-00286-01 Preliminary Revision 13.3.1 Shield Block Assembly ProcedureThe parts for the connector and backshell assembly, GWX68 installations, are listed in Table 3-3 andshown in Figure 3-1.Figure 3-1. Shield Block Install onto Backshell Connector AssemblyTable 3-4. Shield Block ComponentsBackshell AssemblyGarmin P/NShield BlockGarmin P/N011-00950-12(25/44 Pin High Density)011-01169-01
Page 3-4 GWX 68 Installation ManualPreliminary Revision 1 190-00286-011. Attach the Shield Block(s) (2) to the backshell (1) by inserting the flathead screws (3) through theholes on the Shield Block and threading into the tapped holes on the backshell (1). (See Figure 3-1).The appropriate number of Shield Block kits is included in the GWX 68 connector kit.Table 3-5. Shielded Cable PreparationFloatMinFloatMaxIdealFloatWindowMinWindowMaxIdealWindow1.5” 2.5” 2.0” 3.0” 5.5” 4.5”Figure 3-2. Shielded Cable Preparation2. At one end of a shielded cable (4) measure back a distance between “Window Min” to “WindowMax” (Table 3-5) and cut a window (max size 0.35”) in the jacket to expose the shield. (See Figure3-2). Use caution when cutting the jacket to avoid damaging the individual braids of the shield.When dealing with a densely populated connector with many cables it may prove beneficial to staggerthe windows throughout the “Window Min” to “Window Max” range. If staggering is not needed the“Ideal Window” length is recommended.Tools needed to Accomplish the Window Cut:• Coaxial Cable Stripper• Thermal Stripper• Sharp Razor Blade3. Connect a Flat Braid (6) to the shield exposed through the window of the prepared cable assembly(4). The Flat Braid goes out the front of the termination towards the connector. Do not allow wiresto exit the rear of the termination and loop back towards the connector. (See Figure 3-2). Make thisconnection using an approved shield termination technique. Refer to FAA Advisory Circular AC43.13 as a reference for termination techniques.
GWX 68 Installation Manual Page 3-5190-00286-01 Preliminary Revision 1Preferred Method, Solder Sleeves:Slide a solder sleeve (5) onto the prepared cable assembly (4) and connect the Flat Braid (6) to the shieldusing a heat gun approved for use with solder sleeves. It may be easier to use a solder sleeve with a pre-installed Flat Braid versus having to cut a length of Flat Braid to be used. The chosen size of soldersleeve must accommodate both the number of conductors present in the cable and the Flat Braid (6) to beattached.NOTESolder Sleeves with pre-installed Flat Braid: A preferred solder sleeveis the Raychem S03 Series with the thermochromic temperatureindicator. These solder sleeves come with a pre-installed braid andeffectively take the place of items 5 and 6. For detailed instructions onproduct use, refer to Raychem installation procedure RCPS 100-70.Raychem Recommended Heating Tools:• HL1802E• AA-400 Super Heater• CV-1981• MiniRay• IR-1759Individual Solder Sleeves and Flat BraidSolder Sleeves:Reference the following MIL-Specs for general solder sleeves:(M83519/1-1, M83519/1-2, M83519/1-3, M83519/1-4, M83519/1-5).Flat Braid:If the preferred Raychem sleeves are not being used, the individual flat braid selected should conform toASTMB33 for tinned copper and be made up of 36 AWG strands to form an approximately 19-20 AWGequivalent flat braid. A circular mil area range of 1000 to 1300 is required. The number of individualstrands in each braid bundle is not specified.NOTEFlat Braid as opposed to insulated wire is specified in order to insurecontinuing airworthiness by allowing for visual inspection of theconductor.
Page 3-6 GWX 68 Installation ManualPreliminary Revision 1 190-00286-01Secondary Method, Heat Shrink instead of Solder Sleeves:Solder a Flat Braid (6) to the shield exposed through the window of the prepared cable assembly (4).Ensure a solid electrical connection through the use of acceptable soldering practices. Use care to avoidapplying excessive heat that burns through the insulation of the center conductors and shorts the shield tothe signal wire. Slide a minimum 0.75” of Teflon heat shrinkable tubing (5) onto the prepared wireassembly and shrink using a heat gun. The chosen size of heat shrinkage tubing must accommodate boththe number of conductors present in the cable and the Flat Braid (6) to be attached.4. At the same end of the shielded cable (4) and ahead of the previous shield termination, strip back“Float Min” to “Float Max” (Table 3-5) length of jacket and shield to expose the insulated centerconductors. (See Figure 3-2). It may be best to build the “Ideal Float” length optimally.Preferred Method:The jacket and shield should be cut off at the same point so no shield is exposed. Slide 0.75” minimum ofTeflon heat shrinkable tubing (7) onto the cable and use a heat gun to shrink the tubing. The chosen sizeof heat shrinkage tubing must accommodate the number of conductors present in the cableSecondary Method:Leave a max 0.35” of shield extending past the jacket. Fold this 0.35” of shield back over the jacket.Slide a solder sleeve (7) over the end of the cable and use a heat gun approved for solder sleeves to securethe connection. The chosen size of solder sleeve must accommodate the number of conductors present inthe cable.5. Strip back 1/8” of insulation and crimp a pin (8) to each of the conductors in the shielded cable.6. Insert newly crimped pins and wires into the appropriate connector housing location as specified bythe installation wiring diagrams.7. Cut the Flat Braid (6) to a length with the addition of a ring terminal that will reach one of the tappedholes of the Shield Block (2). (See Figure 3-1). An appropriate amount of excess length withoutlooping should be given to the Flat Braid (6) to allow it to move freely with the wire bundle. Notethat the maximum distance from the backshell allowed for the window splice should keep the FlatBraid (6) to a worst case length of approximately 4”.
GWX 68 Installation Manual Page 3-7190-00286-01 Preliminary Revision 18. Guidelines for terminating the newly cutoff Flat Braid(s) (item 6) with insulated ring terminals (9):• Each tapped hole on the Shield Block (2) may accommodate only two ring terminals (9).• It is preferred that only two Flat Braids (6) be terminated per ring terminal. Two Flat Braids perring terminal will necessitate the use of a Ring terminal, #8, insulated, 14-16 AWG(MS25036-153).• If only a single Flat Braid is left or if only a single Flat Braid is need for this connector, a Ringterminal, #8, insulated, 18-22 AWG (MS25036-149) can accommodate this single Flat Braid.• If more braids exist for this connector than two per ring terminal, it is permissible to terminatethree braids per ring terminal. This will necessitate the use of a Ring terminal, #8, insulated,10-12 AWG (MS25036-156).• In rare situations where more braids need to be terminated for this connector than three per ringterminal it is allowable to daisy chain a maximum of two shields together before coming to thering terminal. (See Figure 3-3).• Figure 3-3: Daisy Chain Method for Shield Termination
Page 3-8 GWX 68 Installation ManualPreliminary Revision 1 190-00286-019. Repeat steps 2 through 8 as needed for the remaining shielded cables.10. Terminate the ring terminals to the Shield Block (2) by placing items on the Pan Head Screw (10) inthe following order: Split Washer (11), Flat Washer (12), first Ring Terminal, second Ring Terminalif needed, before finally inserting the screw into the tapped holes on the Shield Block. Do not violatethe guidelines presented in Step 8 regarding ring terminals.11. It is recommended to wrap the cable bundle with Silicone Fusion Tape (13) (GPN: 249-00114-00 or asimilar version) at the point where the backshell strain relief and cast housing will contact the cablebundle. Note: Choosing to use this tape is at the discretion of the installer.12. Place the smooth side of the backshell strain relief (14) across the cable bundle and secure using thethree screws (15). Warning: Placing the grooved side of the strain relief across the cable bundle mayrisk damage to wires.13. Attach the cover (16) to the backshell (1) using two screws (17).9657Figure 3-4: Parallel Shield Termination3.3.2 Configuration Module Installaltion (MX20 only)Table 3-6 lists part numbers for the Configuration Module Kit.Table 3-6. Configuration Module Kit – 011-00979-00Item Description Garmin P/NConfiguration Module PCB Board Assembly w/EEPROM 012-00605-00Cable 4-Conductor Harness 325-00122-00Crimp Pins #22 AWG (HD) 336-00021-00Spacer Spacer, Config Module 213-00043-00
GWX 68 Installation Manual Page 3-9190-00286-01 Preliminary Revision 13.3.3 Configuration Module Assembly Procedure (MX20 only)Table 3-7. Configuration Module Wire Color Reference ChartColor Function J400 PinBlack Ground 1Red Vcc 17Yellow Data 16White Clock 311. Crimp pins (4) onto each wire of the four-conductor wire harness (3). Strip 1/8” of insulationfrom each wire prior to crimping.2. Insert newly crimped pins and wires (3, 4) into the appropriate connector housing (5) locationshown in the figure below.3. Apply the spacer (2) by wrapping it around the PCB Board (1) making sure to insert the plasticconnector mounted on the board into the hole provided in the spacer.4. Plug the four-conductor wire harness (3) into the connector on the PCB Board (1).5. Insert into the backshell (6) recess, PCB Board (1) with pad (2) in position.6. Attach cover (7) to backshell (6) using screws (8).Figure 3-5. Configuration Module Installation
Page 3-10 GWX 68 Installation ManualPreliminary Revision 1 190-00286-013.4 Unit InstallationThe GWX 68 is designed to be rigidly mounted in the nose section of the aircraft. If the nose section isnot accessible, pod mounting is possible. The bulk head or antenna mounting plate must be very close toperpendicular to the aircraft center line. The selected location must have adequate clearance for the fullantenna sweep and tilt range. See Appendix A for outline and installation drawings. The nose sectiondoes not need to be pressurized.It is crucial to the performance of the GWX 68 weather radar system that care be taken inalignment of the GWX 68 unit with respect to the aircraft.1. Refer to Figure A-1 mount the GWX 68 using the hardware provided.2. Assemble the GWX 68 connector kit, see Section 3.3.3. Check unit for clearance in all extreme positions.4. Ensure wiring harness is routed in such a way that it can not be struck by or interfere with the unitmovement through the full sweep and tilt range.3.5 Post Installation Configuration & CheckoutThe GWX 68 does not provide valid outputs until the aircraft post installationconfiguration procedures are completed.When installed as part of the G1000 integrated cockpit system, the GWX 68 must have FAA approvedconfiguration data. Configuration data is loaded to the GWX 68 from an aircraft-specific G1000Software Loader Card. Settings are predetermined for a specific aircraft and are typically containedwithin the file named ‘TBD’.The GDU 1040 PFD serves as the graphics user interface to the installer configuring the system. Forbasic configuration information, refer to the G1000 Line Maintenance and Configuration Manual, Garminpart number 190-00303-04. For actual aircraft installation/checkout, use only aircraft manufacturerapproved checkout procedures.For GWX 68 installations operating with a Garmin MX20, refer to MX20 Installation Manual,560-1025-09.3.6 Continued AirworthinessFor sample Instructions for Continued Airworthiness (ICA) for the GWX 68 installed as part of theG1000 integrated cockpit system, see the G1000 ICA Sample, Garmin part number 190-00303-07.Other than for regulatory periodic functional checks, maintenance on the GWX 68 is “on condition” only.Refer to the G1000 Line Maintenance and Configuration Manual, Garmin part number 190-00303-04.NOTENOTE
GWX 68 Installation Manual Page 4-1190-00286-01 Preliminary Revision 14 SYSTEM INTERCONNECTS4.1 Pin Function List4.1.1 P400View of J400 connector from back of unit1234567891011121314151617181920212223242526272829303132333435363738394041424344Pin Pin Name I/O1 CONFIG MODULE GROUND --2 RESERVED --3 RESERVED --4 ARINC 453 OUT A Out5 ARINC 453 OUT B Out6 RESERVED --7 AIRCRAFT POWER 1 In8 RESERVED --9 AIRCRAFT POWER 1 In10 AIRCRAFT POWER 2 In11 RESERVED --12 AIRCRAFT POWER 2 In13 POWER GROUND --14 RESERVED --15 POWER GROUND --16 CONFIG MODULE DATA I/O17 CONFIG MODULE POWER Out18 ROLL ATTITUDE HI In19 ROLL ATTITUDE LO In20 26 VAC GYRO REF LO In21 26 VAC GYRO REF HI In22 ARINC 429 IN 2 A In23 ARINC 429 IN 2 B In24 RESERVED --25 RESERVED --26 RESERVED --27 RESERVED --28 RESERVED --29 RESERVED --30 RESERVED --31 CONFIG MODULE CLOCK Out32 PITCH ATTITUDE HI In33 PITCH ATTITUDE LO In34 ETHERNET IN A In35 ETHERNET IN B In
Page 4-2 GWX 68 Installation ManualPreliminary Revision 1 190-00286-01Connector P400, continuedPin Pin Name I/O36 ETHERNET OUT A Out37 ETHERNET OUT B Out38 ARINC 429 IN 1 A In39 ARINC 429 IN 1 B In40 RESERVED --41 RESERVED --42 RESERVED --43 RESERVED --44 RADAR REMOTE POWER OFF In4.2 Power4.2.1 Power FunctionsThis section covers the power input requirements.4.2.1.1 Aircraft PowerPin Name Connector Pin I/OAIRCRAFT POWER 1 P400 7 InAIRCRAFT POWER 1 P400 9 InAIRCRAFT POWER 2 P400 10 InAIRCRAFT POWER 2 P400 12 InPOWER GROUND P400 13 --POWER GROUND P400 15 --Pins 7 and 9 of P400 are internally connected to form AIRCRAFT POWER 1. Pins 10 and 12 of P400are internally connected to form AIRCRAFT POWER 2. AIRCRAFT POWER 1 and AIRCRAFTPOWER 2 are “diode ORed” to provide power redundancy.4.2.1.2 Remote On/OffPin Name Connector Pin I/ORADAR REMOTE POWER OFF P400 44 InFor G1000 installations RADAR REMOTE POWER OFF must be grounded to pin 15 of P400 (POWERGROUND).
GWX 68 Installation Manual Page 4-3190-00286-01 Preliminary Revision 14.3 Serial Data4.3.1 Serial Data Electrical Characteristics4.3.1.1 ARINC 429/453Pin Name Connector Pin I/OARINC 453 OUT A P400 4 OutARINC 453 OUT B P400 5 OutARINC 429 IN 1 A P400 38 InARINC 429 IN 1 B P400 39 InARINC 429 IN 2 A P400 22 InARINC 429 IN 2 B P400 23 In4.3.1.2 Ethernet HSDBPin Name Connector Pin I/OETHERNET IN A P400 34 InETHERNET IN B P400 35 InETHERNET OUT A P400 36 OutETHERNET OUT B P400 37 OutThe Ethernet high speed data bus (HSDB) meets the hardware aspects of IEEE standard 802.3 for 10 baseT Ethernet communications.4.4 Configuration4.4.1 Configuration ModulePin Name Connector Pin I/OCONFIG MODULE GROUND P400 1 --CONFIG MODULE DATA P400 16 I/OCONFIG MODULE POWER P400 17 OutCONFIG MODULE CLOCK P400 31 Out4.5 Auto Pilot4.5.1 Flight InstrumentsPin Name Connector Pin I/OROLL ATTITUDE HI P400 18 InROLL ATTITUDE LO P400 19 InPITCH ATTITUDE HI P400 32 InPITCH ATTITUDE LO P400 33 InInputs pitch and roll attitude information from AFCS. Expected nominal input voltage is 50mV/degree.
Page 4-4 GWX 68 Installation ManualPreliminary Revision 1 190-00286-014.5.2 26 Volt AC ReferencePin Name Connector Pin I/O26 VAC GYRO REF LO P400 20 In26 VAC GYRO REF HI P400 21 InExpected nominal input voltage is 400 Hz, 26VRMS.
APPENDIX A OUTLINE & INSTALLATION DRAWINGSGWX 68 Installation Manual Page A-1 (Page A-2 blank)190-00286-01 Preliminary Revision 14.600±.022 116.84±0.56AZIMUTH AXIS6.815±.064 173.09±1.6345°MAX. AZIMUTHANGLEBULKHEAD MOUNTINGSURFACE6.624 168.253.312 84.126.750 171.453.375 85.7310.00 254.04X .265 THRU6.73.25 6.4.30 7.64.951±.029 125.75±0.74TILT AXIS2.47 62.730°MAX. TILTANGLER5.530 140.46MAX SPHERICAL RADIUS10" ANTENNAR6.548 166.32MAX SPHERICAL RADIUS12" ANTENNANOTES:1. DIMENSIONS: INCHES[mm]2. 12" ANTENNA SHOWNUPPRELIMINARY4X 211-64214-221/4-28 SOCKET HEAD CAP SCREWSRIGHT ANGLE CONNECTORFigure A-1. GWX 68 Outline Drawing
APPENDIX B INTERCONNECT DRAWINGSGWX 68 Installation Manual Page B-1 (Page B-2 blank)190-00286-01 Preliminary Revision 1Figure B-1. GWX 68 Typical G1000 Interconnect Wiring Diagram
APPENDIX B INTERCONNECT DRAWINGSGWX 68 Installation Manual Page B-3 (Page B-4 blank)190-00286-01 Preliminary Revision 1Figure B-2. GWX 68 Typical MX20 Interconnect Wiring Diagram
APPENDIX B INTERCONNECT DRAWINGSGWX 68 Installation Manual Page B-5 (Page B-6 blank)190-00286-01 Preliminary Revision 1Figure B-3. GWX 68 Analog Stabilization Interconnect Wiring Diagram
APPENDIX B INTERCONNECT DRAWINGSGWX 68 Installation Manual Page B-7 (Page B-8 blank)190-00286-01 Preliminary Revision 1Figure B-4. GWX 68 AHRS Stabilization Interconnect Wiring Diagram

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