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9201-B San Mateo Blvd N.E. 
Albuquerque, New Mexico 87113 
U.S.A. 
CAGE: 6PC31 
Telephone: 855-250-7027 (Toll-Free U.S.A./Canada) 
Telephone: 602-365-7027 (International Direct) 
Web site: www.bendixking.com/support 

Publication Number D201308000037, Revision 0 

 

Page T-1

   Initial 15 Nov 2013

 

    

© Honeywell International Inc. Do not copy without express permission of Honeywell. 

 

Installation Manual 

KT 74 Mode S/ADS-B Out Transponder 

Part Number 

CAGE 

89000007-000001 6PC31 

 
 

 

Legal Notice 

Export Control 

This document contains technical data and is subject to U.S. export regulations. These commodities, technology, or 

software were exported from the United States in accordance with the export administration regulations. Diversion 

contrary to U.S. law is prohibited. 

ECCN: 7E994. 

Summary of Contents for 89000007-000001

Page 1: ... Honeywell International Inc Do not copy without express permission of Honeywell Installation Manual KT 74 Mode S ADS B Out Transponder Part Number CAGE 89000007 000001 6PC31 Legal Notice Export Control This document contains technical data and is subject to U S export regulations These commodities technology or software were exported from the United States in accordance with the export administra...

Page 2: ...reby grants you a limited non exclusive license to use these Materials to maintain or repair the subject Honeywell aerospace products only at the facility to which these Materials have been shipped the Licensed Facility Transfer of the Materials to another facility owned by you is permitted only if the original Licensed Facility retains no copies of the Materials and you provide prior written noti...

Page 3: ...writing duly executed by the duly authorized representatives of the parties Safety Advisory WARNING BEFORE THE MATERIALS CALLED OUT IN THIS PUBLICATION ARE USED KNOW THE HANDLING STORAGE AND DISPOSAL PRECAUTIONS RECOMMENDED BY THE MANUFACTURER OR SUPPLIER FAILURE TO OBEY THE MANUFACTURERS OR SUPPLIERS RECOMMENDATIONS CAN RESULT IN PERSONAL INJURY OR DISEASE This publication describes physical and ...

Page 4: ...INSTALLATION MANUAL 89000007 Page T 4 15 Nov 2013 Honeywell International Inc Do not copy without express permission of Honeywell Blank Page ...

Page 5: ...S ADS B OUT TRANSPONDER IM PUB NO D201308000037 AND IS ISSUED FOR USE IN SUPPORT OF THE FOLLOWING Table TI 1 shows the applicable components Table TI 1 Applicable Components Component Part Number Nomenclature 89000007 000001 KT 74 Mode S ADS B Out Transponder Revision History Table TI 2 shows the revision history of this IM Table TI 2 Revision History Revision Number Revision Date 0 15 Nov 2013 ...

Page 6: ...INSTALLATION MANUAL 89000007 Page TI 2 15 Nov 2013 Honeywell International Inc Do not copy without express permission of Honeywell Blank Page ...

Page 7: ...ORD OF REVISIONS For each revision write the revision number revision date date put in the manual and your initials in the applicable column NOTE Refer to the Revision History in the TRANSMITTAL INFORMATION section for revision data Revision Number Revision Date Date Put in Manual By Revision Number Revision Date Date Put in Manual By ...

Page 8: ...INSTALLATION MANUAL 89000007 Page RR 2 15 Nov 2013 Honeywell International Inc Do not copy without express permission of Honeywell Blank Page ...

Page 9: ... temporary revision put the applicable data in the record columns on this page Definition of Status column A TR may be active incorporated or deleted Active is entered by the holder of the manual Incorporated means a TR has been incorporated into the manual and includes the revision number of the manual when the TR was incorporated Deleted means a TR has been replaced by another TR a TR number wil...

Page 10: ...INSTALLATION MANUAL 89000007 Page RTR 2 15 Nov 2013 Honeywell International Inc Do not copy without express permission of Honeywell Blank Page ...

Page 11: ... LEP 1 15 Nov 2013 LEP 2 15 Nov 2013 Table of Contents TC 1 15 Nov 2013 TC 2 15 Nov 2013 TC 3 15 Nov 2013 TC 4 15 Nov 2013 TC 5 15 Nov 2013 TC 6 15 Nov 2013 Introduction INTRO 1 15 Nov 2013 INTRO 2 15 Nov 2013 Subject Page Date INTRO 3 15 Nov 2013 INTRO 4 15 Nov 2013 INTRO 5 15 Nov 2013 INTRO 6 15 Nov 2013 Section 1 General Information 1 1 15 Nov 2013 1 2 15 Nov 2013 1 3 15 Nov 2013 1 4 15 Nov 201...

Page 12: ... 17 15 Nov 2013 2 18 15 Nov 2013 2 19 15 Nov 2013 2 20 15 Nov 2013 Section 3 System Interconnect 3 1 15 Nov 2013 3 2 15 Nov 2013 F 3 3 3 4 15 Nov 2013 Section 4 Post Installation Configuration Calibration and Checkout 4 1 15 Nov 2013 Subject Page Date 4 2 15 Nov 2013 4 3 15 Nov 2013 4 4 15 Nov 2013 4 5 15 Nov 2013 4 6 15 Nov 2013 4 7 15 Nov 2013 4 8 15 Nov 2013 Section 5 Instructions for Continued...

Page 13: ...ions Website INTRO 2 B BendixKing Customer Support INTRO 2 3 References INTRO 2 A Honeywell Vendor Publications INTRO 2 B Other Publications INTRO 3 4 Acronyms and Abbreviations INTRO 4 A General INTRO 4 5 Software History INTRO 5 A Software Data INTRO 5 SECTION 1 GENERAL INFORMATION 1 1 1 1 KT 74 Description 1 1 1 2 Interfaces 1 1 1 3 Regulatory 1 2 1 3 1 Approved Deviations 1 3 1 4 Physical Spec...

Page 14: ... ADS B Parameters Supported 1 11 1 28 FAA 91 227 Compliance 1 13 1 29 AMC 20 24 Compliance 1 13 1 30 Automatic Air Ground Determination 1 13 SECTION 2 INSTALLATION 2 1 2 1 Unpacking and Inspecting Equipment 2 1 2 2 Mounting 2 1 2 3 Installation Drawings 2 1 2 4 Cooling Requirements 2 5 2 5 Electrical Connections 2 5 2 5 1 Primary Interface Pinout 2 5 2 5 2 Secondary Interface Pinout 2 7 2 5 3 Orie...

Page 15: ... AND CHECKOUT 4 1 4 1 Post Installation Checks 4 1 4 2 Installation Setup and Test 4 1 4 3 Configuration Items 4 3 4 3 1 Aircraft Registration VFR Flight ID 4 3 4 3 2 Aircraft Address Programming 4 3 4 3 3 VFR Squawk Code 4 3 4 3 4 Airspeed Category 4 3 4 3 5 Aircraft Category 4 4 4 3 6 Squat Switch Source 4 4 4 3 7 ARINC TIS A Output 4 4 4 3 8 Serial TIS A Output 4 4 4 3 9 GPS Input 4 4 4 3 10 GP...

Page 16: ...ll Title Page 4 4 1 Interface Check 4 6 4 4 2 Altitude Check 4 7 4 4 3 Lighting Bus 4 7 4 4 4 Temperature 4 7 4 4 5 GPS Interface 4 7 4 5 Warnings and Faults 4 7 SECTION 5 INSTRUCTIONS FOR CONTINUED AIRWORTHINESS 5 1 5 1 Continued Airworthiness 5 1 5 2 Cleaning the KT 74 Transponder 5 1 APPENDIX A ENVIROMENTAL QUALIFICATION A 1 ...

Page 17: ...2 3 Secondary Interface Pinout Locations 2 8 Figure 2 4 KT 74 Connector Positions 2 9 Figure 2 5 Molex Crimp Terminals 2 13 Figure 2 6 Coax Cable Stripping Dimensions 2 16 Figure 2 7 Coax Cable Inner and Outer Shield Orientation 2 16 Figure 2 8 Coax Cable Outer Shield to BNC Solder Location 2 17 Figure 2 9 Coax Cable and BNC Heat Shrink Location 2 17 Figure 2 10 BNC Completed Assembly 2 18 Figure ...

Page 18: ...Specifications 1 3 Table 1 4 Included Transponder Items 1 4 Table 1 5 Installation Kit 1 5 Table 1 6 Documentation Kit 1 5 Table 1 7 Push Button Functions 1 7 Table 1 8 ADS B Parameters 1 11 Table 2 1 Primary Interface Pinout Locations 2 6 Table 2 2 Secondary Interface Pinout Locations 2 7 Table 2 3 Maximum Usable Cable Lengths 2 14 Table 4 1 Warning Messages 4 7 Table 4 2 Fault Messages 4 8 Table...

Page 19: ...rsonnel what part of an operation or maintenance procedure which if not obeyed can cause damage to the equipment Warnings and cautions go before the applicable paragraph or step Notes follow the applicable paragraph or step B Observance of Manual Instructions 1 Make sure that you carefully obey all safety quality operation and shop procedures for the unit 2 All personnel who operate equipment and ...

Page 20: ...and conditions 2 BendixKing Technical Publications Support A Honeywell Aerospace Online Technical Publications Website 1 Go to the Honeywell Online Technical Publications Website at www myaerospace com To download or see publications online To order a publication To tell Honeywell of a possible data error in a publication B BendixKing Customer Support 1 Call BendixKing Customer Support for all Par...

Page 21: ...trical and Electronic Parts Assemblies and Equipment Excluding Electrically Initiated Explosive Devices Metric available from any military standards database MIL STD 1686 Electrostatic Discharge Control Program for Protection of Electrical and Electronic Parts Assemblies and Equipment Excluding Electrically Initiated Explosive Devices Metric available from any military standards database EUROCAE E...

Page 22: ...ic dependent surveillance broadcast ALT altitude AMC acceptable means of compliance AMP ampere ANSI American National Standards Institute ARINC Aeronautical Radio Incorporated ASME American Society of Mechanical Engineers ATA Air Transport Association ATC air traffic control AWG american wire gauge BDS COMM B data selector BNC British naval connector bps bits per second C Celsius CAGE commercial a...

Page 23: ...oning system GND ground GVA geometric vertical accuracy Hz hertz I O input output ICAO International Civil Aviation Organization ID identifier IDENT identification IEC International Electrotechnical Commission IEEE Institute of Electrical and Electronics Engineers Kg kilogram Km kilometer KSN King Safety Navigator KT King Transponder LCD liquid crystal display m meter MAX maximum MHz megahertz mm ...

Page 24: ...tegrity level SPI special position identifier TCAS traffic collision avoidance system TIS A traffic information service TR temporary revision TSO technical standard order U S A United States of America UAT universal access transceiver USMS United States Measurement System VDC volts direct current VFR visual flight rule VSWR voltage standing wave ratio WAAS wide area augmentation system 5 Software ...

Page 25: ...er on 1 030 MHz and replies are transmitted on 1 090 MHz In the Mode S environment S stands for Select and a Mode S interrogator can selectively address a single transponder This allows accurate position plotting with lower reply rates which in turn reduces frequency congestion and interference In addition power consumption by the transponder may be reduced and simple datalink services can be supp...

Page 26: ...on bus I O ARINC compatible suppression bus signal used in aircraft with more sophisticated suppression needs both an input to and output from the transponder Audio output Optionally used by the altitude monitor function Audio mute input Toggle function to mute the audio output Altitude alert output Output used to signal altitude deviations when altitude monitor function is used GPS Input Connecti...

Page 27: ...ntenna after allowing for 0 5 dB connector losses and 1 5 dB cable losses Transmitter modulation 6M75 V1D Receiver frequency 1 030 MHz Receiver sensitivity 74 dBm 3 dB 1 3 1 Approved Deviations The KT 74 ADS B function is certified to ETSO C166b which references DO 260B as the applicable standard Since publication of DO 260B a corrigendum has been published the KT 74 complies with the corrected DO...

Page 28: ...ndition 1 7 Non TSO Functions The KT 74 Mode S Transponder contains the following non TSO functions Stopwatch and Flight Timer The transponder provides a simple stopwatch and flight timer function displayed on the front panel Altitude Monitor The Altitude Monitor activates an audio annunciator or annunciator light depending on installation when the aircraft pressure altitude differs from the previ...

Page 29: ...d mate 1 Circlip 7 16 inch external 1 Washer 7 16 inch plain stainless steel 1 Washer 7 16 inch crinkle beryllium copper 1 1 10 Documentation Kit Your KT 74 documentation kit includes the following items Refer to Table 1 6 Table 1 6 Documentation Kit Unit Description Qty BendixKing PN KT 74 Pilots Operating Manual 1 D201308000036 1 11 Required Items Additional items you will require but which are ...

Page 30: ...al TIS A features a display with an appropriate serial input is required 1 12 Normal Operations Overview On the front panel is a blue tinted white backlit LCD display adjacent to a rotary mode selector knob OFF SBY ON and ALT and buttons for IDENT and VFR squawk code A row of numeric buttons along with the enter ENT and function FUNC buttons lie below the display Refer to Figure 1 1 Figure 1 1 KT ...

Page 31: ...r the push buttons and their functions Table 1 7 Push Button Functions Button Function IDENT Press the IDENT button when ATC instructs you to Ident or Squawk Ident This activates the SPI pulse in the transponder replies for 18 seconds IDENT will appear in the display VFR Pressing the VFR button sets the transponder to the pre programmed VFR squawk code Pressing the button again restores the previo...

Page 32: ...e presses of the numeric buttons When the correct character is shown in the flight ID section of the screen press the ENT button to accept and advance to the next digit When ENT is pressed on the last digit the new Flight ID will replace the previous value If a button is not pressed for 30 seconds the changes are ignored and the previous code restored The Flight ID should correspond to the aircraf...

Page 33: ... a brief statement of the problem Depending on the nature of the problem your transponder may not be replying to interrogations The WARNING message should clear when the event has cleared Press ENT to clear the message at any time if the fault is still present the message may reappear Refer to Section 4 5 for lists of warning messages 1 23 Fault Annunciation If the transponder detects an internal ...

Page 34: ...re unit Buyer must notify Seller in writing during the warranty period of a Nonconformance and within 30 calendar days of discovery of the Nonconformance return the Product to Seller s designated facility Seller s obligation and Buyer s sole remedy under this warranty is repair or replacement at Seller s election of any Product Nonconformance All Products repaired or replaced are warranted only fo...

Page 35: ...roduct Upon Seller s request Buyer will give Seller access to these records for substantiating warranty claims THESE WARRANTIES ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES WHETHER WRITTEN EXPRESS IMPLIED STATUTORY OR OTHERWISE INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE IN NO EVENT WILL SELLER BE LIABLE FOR ANY INCIDENTAL CONSEQUE...

Page 36: ...e 0 5 0 5 Quality indicator NIC 0 6 Surface Position Latitude Longitude 0 6 0 6 Surface ground speed 0 6 Surface ground track 0 6 Aircraft identification 0 8 Airborne ground velocity 0 9 Geometric to barometric altitude difference 0 9 Geometric vertical speed 0 9 Squawk code 6 1 Emergency status 6 1 Quality indicator NACp NACv and GVA 6 5 Quality indicator SIL and SDA 6 5 Version indicator 6 5 Sur...

Page 37: ... WAAS GPS sensors NexNav MINI WAAS GPS sensors For installations seeking certification to 91 227 or other applicable standards additional compliance information is available on request 1 29 AMC 20 24 Compliance The KT 74 transponder can be connected to the following GPS units to form the basis of an AMC 20 24 compliant ADS B installation Freeflight 1201 WAAS GPS sensors NexNav MINI WAAS GPS sensor...

Page 38: ...INSTALLATION MANUAL 89000007 Page 1 14 15 Nov 2013 Honeywell International Inc Do not copy without express permission of Honeywell Blank Page ...

Page 39: ...ion of cables and connectors Select a position in the panel that is not too close to any high external heat source The KT 74 is not a significant heat source itself and does not need to be kept away from other devices for this reason Avoid sharp bends and placing the cables too near to the aircraft control cables Secure the mounting tray PN 89000007 041001 to the instrument panel via the six mount...

Page 40: ...INSTALLATION MANUAL 89000007 Page 2 2 15 Nov 2013 Honeywell International Inc Do not copy without express permission of Honeywell Blank Page ...

Page 41: ...INSTALLATION MANUAL 89000007 Page 2 3 2 4 15 Nov 2013 Honeywell International Inc Do not copy without express permission of Honeywell Figure 2 1 KT 74 Installation Drawing ...

Page 42: ...in a rack can be degraded if adequate cooling is not provided 2 5 Electrical Connections The KT 74 has two Molex edge connectors one with 24 contacts which is the primary interface and a second connector with 12 contacts which carries signals to support ADS B and uplinked TIS A traffic A single coaxial connector attaches to the antenna In simple installations it is possible to omit wiring for the ...

Page 43: ...A traffic out 1 Output 7 GPS position in 1 Input 8 Altitude D4 Input 9 Suppress in Input 10 Standby switch Input 11 11 to 33 VDC 12 11 to 33 VDC A Ground B Altitude B4 Input C Altitude B2 Input D Altitude C1 Input E Altitude B1 Input F Ident switch in Input H Altitude C4 Input J Altitude A4 Input K Altitude A2 Input L Altitude C2 Input M Altitude A1 Input N Do not connect 1 NOTE 1 These signals ar...

Page 44: ...inout Locations 2 5 2 Secondary Interface Pinout Refer to Table 2 2 and Figure 2 3 for the primary interface pinout locations Table 2 2 Secondary Interface Pinout Locations Pin Signal Direction 1 Ground 2 Serial Alt out Output 3 Serial Alt in Input 4 Reserved Input 5 Audio mute in Input 6 Altitude alert Output A Ground B Audio Output C Audio Output D Reserved ...

Page 45: ...tion Diagram To assist in connector orientation the following example shows a typical set of connections Figure 2 4 shows the expected connector positions when viewed from the transponder side of the tray looking into the tray from the front In the example shown the aircraft uses a 14 volt lighting bus a parallel altitude encoder a DME with simple suppression output a GPS with serial position outp...

Page 46: ...er supply protection to the KT 74 2 6 2 Lighting Bus Input The KT 74 will adjust the brightness of the front panel switch lighting according to the voltage on the lighting bus input Two lighting bus inputs are provided on the 24 way connector to accommodate aircraft with 14 or 28 volt lighting systems When the lighting bus operates at 28 volts connect the bus input to Contact 3 and leave Contact 2...

Page 47: ... offers both we recommend using the RS232 serial input Serial formats allow a higher resolution altitude representation that can be used by Mode S interrogations whereas Gillham code format can only represent altitude to the nearest 100 feet 30 5 m You must choose between serial or parallel formats you should not connect both If a parallel encoder is connected the KT 74 will always use that as the...

Page 48: ...put should be left open circuit and the setup mode programmed for Not Connected 2 6 6 Ident Switch Input The Ident switch input on the 24 way connector allows the IDENT function to be selected using a remote switch The input is active low and will be asserted when the voltage to ground is pulled below approximately 4 volts 2 6 7 External Standby Input This input when held low places the transponde...

Page 49: ...Aviation Format NMEA 0183 NexNav FreeFlt Garmin ADS B Trig ADS B BK GPS Xpress The interface speed can be selected between 1 200 2 400 4 800 9 600 19 200 38 400 57 600 and 115 200 bps Some of the protocols listed above may not contain all the required data for a compliant ADS B message depending on the intended airspace regulations For further information refer to Section 1 26 ADS B Compliance of ...

Page 50: ...ol or equivalent This is pushed gently into the connector shell from the side opposite from the wire entry and lifts the retaining tab from the stop allowing the contact to be eased out by pulling on the wire 2 8 Antenna Installation The antenna should be installed according to the manufacturer s instructions The following considerations should be taken into account when locating the antenna The a...

Page 51: ...n allowance of 1 5 dB maximum loss for the cable itself An acceptable cable Has less than 1 5 dB loss for the run length needed Has a characteristic impedance of 50 ohms Has double braid screens or has a foil and braid screen Once the cable run length is known a cable type with low enough loss per meter that meets the above requirements can be chosen Longer runs require lower loss cable NOTE Low l...

Page 52: ...0801 When routing the cable make sure that you Route the cable away from sources of heat Route the cable away from potential interference sources such as ignition wiring 400 Hz generators fluorescent lighting and electric motors Allow a minimum separation of 12 inches 300 mm from an ADF antenna cable Keep the cable run as short as possible Avoid routing the cable around tight bends Avoid kinking t...

Page 53: ...ax cable to the dimensions in table and as shown in the figure below Slide 1 inch 25 4 mm of heat shrink tubing over the cable Refer to Figure 2 6 Figure 2 6 Coax Cable Stripping Dimensions Dimensional Limits for Figure 2 6 Reference Limits Inches mm Reference Limits Inches mm DIM A 0 5 12 7 DIM C 0 125 3 2 DIM B 0 25 6 4 2 Insert the cable into the connector the inner conductor should align with ...

Page 54: ...dy and running solder into the gap Try to avoid excess solder heat on the connector body 5 Solder the outer shield to the outside of the connector body Avoid excess solder heat on the connector body Refer to Figure 2 8 Figure 2 8 Coax Cable Outer Shield to BNC Solder Location 6 Slide heat shrink tubing forward flush to connector and heat to shrink the tubing Refer to Figure 2 9 Figure 2 9 Coax Cab...

Page 55: ...is prepared feed it through the KT 74 mounting tray and attach the washer combination in the following order Wave washer Plain washer Circlip washer The Circlip washer should be fitted with a set of Circlip pliers The two Molex connectors should be passed through the openings in the rear of the tray and then mounted firmly to the tray from the inside using the four M3 screws supplied Refer to Figu...

Page 56: ...INSTALLATION MANUAL 89000007 Page 2 19 15 Nov 2013 Honeywell International Inc Do not copy without express permission of Honeywell Figure 2 11 Tray BNC Connector Assembly ...

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Page 58: ...000007 Page 3 1 15 Nov 2013 Honeywell International Inc Do not copy without express permission of Honeywell SECTION 3 SYSTEM INTERCONNECT 3 1 Basic Interconnect Diagram Refer to Figure 3 1 for the basic interconnect diagram ...

Page 59: ...INSTALLATION MANUAL 89000007 Page 3 2 15 Nov 2013 Honeywell International Inc Do not copy without express permission of Honeywell Blank Page ...

Page 60: ...INSTALLATION MANUAL 89000007 Page 3 3 3 4 15 Nov 2013 Honeywell International Inc Do not copy without express permission of Honeywell Figure 3 1 KT 74 Basic Interconnect Diagram ...

Page 61: ...the transmitted power A Class 1 installation should have no less than 125 Watts at the antenna and no more than 500 Watts Failure to meet this requirement is also generally due to antenna or wiring issues Where installed verification of the GPS position source and ADS B outputs In an aircraft with a configured GPS pressing the FUNC button on the transponder front panel in normal operation will dis...

Page 62: ...d width GPS reference offset Audio output volume LCD dimming settings It will then run some simple installation diagnostics including an external interface check a check of the altitude encoder interface and a check of the lighting bus input All the programming is accomplished using the numeric buttons 2 back 6 down 7 up and the ENT and FUNC buttons Pressing the ENT button accepts the current inpu...

Page 63: ... digit hexadecimal number although you may also encounter one written as an eight digit octal number The KT 74 only understands the hexadecimal format so you must first convert an octal number to hexadecimal Enter the six digit aircraft address using the numeric buttons and the ENT button Press FUNC to move to the next menu item In the case of an N registration aircraft this Mode S address will no...

Page 64: ...he transponder select the appropriate interface protocol using the numeric buttons 6 and 7 On this menu you can select None TIS A Traffic 1 and TIS A Traffic 2 When connecting to the Bendixking KSN 765 770 or Garmin display select TIS A Traffic 1 NOTE TIS A is a Mode S uplink service that is provided by some US approach radars TIS A coverage is limited to the coverage areas of those radars there i...

Page 65: ... your GPS installation manual 4 3 13 Measurement Unit Entry of the following configuration items may be in meters or feet Select the required measurement unit from the choice on the display 4 3 14 Aircraft Length and Width On the ground ADS B transmits encoded aircraft size information which is used by ATC to identify taxiing routes and potential conflicts When configured for ADS B the KT 74 will ...

Page 66: ...s 6 and 7 While you are adjusting the volume control the transponder will periodically output a test signal to verify the settings Press FUNC to accept and move to the next menu item 4 3 18 LCD Dim Point The LCD backlight illumination is controlled automatically by the ambient light sensor Depending on the amount of light spill in the cockpit and the brightness of other adjacent avionics displays ...

Page 67: ... normal operating mode with the GPS receiver operating correctly and a ramp test of the transmitted parameters completed 4 5 Warnings and Faults The messages shown in Table 4 1 and Table 4 2 may appear on the screen of the KT 74 transponder These tables provide further information on the possible cause and actions to take in the event these occur Table 4 1 Warning Messages Message Issue Descriptio...

Page 68: ... failed XXXX Call BendixKing Customer Support Receiver fault or no signal Call BendixKing Customer Support Transmitter failed Call BendixKing Customer Support Squitter failure Call BendixKing Customer Support I2C write data Call BendixKing Customer Support BendixKing Customer Support Telephone 855 250 7027 Toll Free U S A Canada Telephone 602 365 7027 International Website www bendixking com suppo...

Page 69: ...ervice requirements necessary to maintain continued airworthiness and no maintenance is required until the equipment does not properly perform its intended function When service is required a complete performance test should be accomplished following any repair action Repairs should only be carried out in accordance with BendixKing service agreements 5 2 Cleaning the KT 74 Transponder The front pa...

Page 70: ...INSTALLATION MANUAL 89000007 Page 5 2 15 Nov 2013 Honeywell International Inc Do not copy without express permission of Honeywell Blank Page ...

Page 71: ...60G Section Description of Conducted Tests Temperature and altitude 4 0 Equipment tested to Categories A4 and C4 Low temperature ground survival 4 5 1 67 F 55 C Low temperature operating 4 5 1 13 F 25 C High temperature operating 4 5 3 158 F 70 C High temperature short time operating 4 5 2 158 F 70 C High temperature ground survival 4 5 2 185 F 85 C Loss of cooling 4 5 4 Cooling air not required 1...

Page 72: ...sion 9 0 Equipment identified as Category X no test required Waterproofness 10 0 Equipment identified as Category X no test required Fluids susceptibility 11 0 Equipment identified as Category X no test required Sand and dust 12 0 Equipment identified as Category X no test required Fungus 13 0 Equipment identified as Category X no test required Salt spray 14 0 Equipment identified as Category X no...

Page 73: ...ility 20 0 Equipment tested to Category TT Radio frequency emission 21 0 Equipment tested to Category B Lightning induced transient susceptibility 22 0 Equipment tested to Category B2H2L2 Lightning direct effects 23 0 Equipment identified as Category X no test required Icing 24 0 Equipment identified as Category X no test required Electrostatic discharge 25 0 Equipment tested to Category A Flammab...

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