Page 1 P.O. Box 97001 Redmond, Washington 98073-9701 U.S.A Maintenance Manual CAS-100 Collision Avoidance System 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.
Page 2 This document is being furnished in confidence by Honeywell. The information disclosed herein fall within exemption (b) (4) of 5 usc 552 and the prohibitions of 18 usc 1905. S2003 Honeywell is a U.S. registered trademark of Honeywell. All other marks are owned by their respective companies. 34-45-47 Title Page T-2...
Page 3 For each revision, put the revised pages in your manual and discard the superseded pages. Write the revision number and date, date put in manual, and the incorporator’s initials in the applicable columns on the Record of Revisions. The initial H shows Honeywell is the incorporator. Revision...
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Page 7 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM SERVICE BULLETIN LIST Identified Date Included Service Bulletin in this Manual Description Page SBL-1 34-45-47 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
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Page 9 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM LIST OF EFFECTIVE PAGES Subheading and Page Date Subheading and Page Date Title INTRO-2 1 Dec 2003 1 Dec 2003 INTRO-3 1 Dec 2003 1 Dec 2003 INTRO-4 1 Dec 2003 Record of Revisions...
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Page 15: Table Of Contents
C. TCAS Accessories ............14 D. Aircraft Equipment Required But Not Supplied By Honeywell ..... 15 E.
Page 16 B. CAS-100 Functional Overview ........
Page 17 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Subject Page 6. Operation ............. . . 59 A.
Page 18 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Subject Page C. Using TCAS Processor Front-Panel Buttons and LCD Display ....1008 (1) General............1008 (2) Unit OK/System Failed .
Page 19 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Subject Page (3) Directional Antenna Adapter Installation for 8-hole, Flat Base Antenna ..2031 C. TCAS Omni Antenna Installation ......... 2035 (1) Antenna Positioning and Wiring Specifications .
Page 20 A. General............. 2057 B. Honeywell TCAS Maintenance Recommendations ......2057...
Page 21 CAS-100 Collision Avoidance System Components ..... . . 0 Figure 2 CAS-100 Sensitivity Level Altitude Layers ......21 Figure 3...
Page 22 CAS-100 Interwiring Diagram ........2087...
Page 23 Table 4 CAS-100 and Aircraft Optional Equipment ......17 Table 5 TPA-100A TCAS Processor Available Configurations .
Page 24: Table Page
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table Page Table 2004 Inspection/Check Procedure........2036 Table 2005 Upper TCAS Antenna Bearing Accuracy Chart .
Page 25: Introduction
(b) (4) of 5 usc 552 and the prohibitions of 18 usc 1905. Copyright 2003 Honeywell. All Rights Reserved. Honeywell is a U.S. registered trademark of Honeywell. All other marks are owned by their respective companies.
Page 26: Content Data
We recommend that the tests in TESTING AND FAULT ISOLATION be done before the unit is disassembled. These tests can tell the condition of the CAS-100 or most probable cause of any malfunction. Should any malfunction occur, repair as necessary.
Page 27: Intro-3 1 Dec
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table Intro-1. Related Publications (cont) PUBLICATION PUBLICATION No. ATA No. AXT-81A TCAS Auxiliary Test Panel, I.B. 1181CT 34-45-04 Part No. 071-50012-8101, Component Maintenance Manual IVA-81A Traffic Advisory/Vertical Speed I.B. 1181D 34-45-20 Indicator, (TA/VSI), Part No. 066-50001-XXXX,...
Page 28: Verification
(1978) Graphic Symbols for Logic Functions* ANSI/IEEE STD 91 (1984) NOTES: 1. You can order a Honeywell publication from Honeywell as follows: Telephone No. (425) 885-8367 Fax No. (425) 885-8722 Email: [email protected] 2. *Available from the American National Standards Institute, New York, NY B.
Page 29: Symbols
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM C. Symbols The symbols in Figure Intro-1 may be used to identify static sensitive (ESDS) and moisture sensitive devices. Figure Intro-1. Symbols D. Weights and Measurements All weights and measurements are in U.S. values and S.I. (metric values).
Page 30: Acronyms And Abbreviations
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM E. Acronyms and Abbreviations The acronyms and abbreviations that follow help the reader identify terms and definitions used by Honeywell. The letter symbols for units of measurement are the same as shown in the GPO Style Manual and in ANSI/IEEE Std 260.
Page 31: Intro-7 1 Dec
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Term Definition mercury identification IEEE Institute of Electrical and Electronics Engineers input/output left bottom plug liquid crystal display light-emitting diode left middle plug line replaceable unit left top plug mean sea level minimum trigger level...
Page 32: Intro-8 1 Dec
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Term Definition TCAS Traffic Alert and Collision Avoidance System threaded N connector Technical Standing Order vertical speed indicator VSWR voltage standing wave ratio Page INTRO-8 34-45-47 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 33 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM CAS-100 Collision Avoidance System Components Figure 1 012-0680-001 Page 0 34-45-47 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 34 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM THIS PAGE LEFT BLANK 012-0680-001 Page 00 34-45-47 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 35: Description And Operation
DESCRIPTION AND OPERATION 1. General This section contains data for the function and the operation of the Honeywell CAS-100 Collision Avoidance System, hereafter referred as the CAS-100, TCAS, or by its full nomenclature. The CAS-100 components are shown in Figure 1.
Page 36 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Repetitious TCAS interrogations in the Mode S and the Mode C formats monitor the aircraft positions. The transponders reply after a set interval when interrogated. The measurement of time between interrogation transmission and reply reception lets TCAS find the range of the intruder.
Page 37: Equipment Part Numbers
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM TCAS equipment operates at the same transmit and receive frequencies as ground stations (1030 MHz transmit and 1090 MHz receive). TCAS and ground stations operate at transmit and receive frequencies that are inverse to transponder transmit and receive frequencies...
Page 38: Table 1 Tcas System Components (Honeywell Supplied)
Mode S transponder/TCAS control units. Table 2 lists accessories for the TPA-100A processor. NOTE: Many of the units required by the CAS-100 Collision Avoidance System are part of the CAS-81 Collision Avoidance System or TRA-67 Mode S Transponder System. Currently, the only CAS-100 Collision Avoidance System units are the 4MCU and...
Page 39 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1. TCAS System Components (Honeywell Supplied) (cont) Honeywell Equipment Part Number Description TCAS Processor (cont) TPA-100A (cont) 940-0300-001 The TCAS processor receives own-aircraft data 940-0400-001 from on-board aircraft equipment on these inputs: magnetic heading, and pitch and roll attitude on an attitude heading reference system (AHRS) 429 bus or X, Y, Z synchro inputs;...
Page 40 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1. TCAS System Components (Honeywell Supplied) (cont) Honeywell Equipment Type Part Number Description TCAS Processor (cont) TPA-100A (cont) 940-0300-001 The TCAS processor monitors the failure status 940-0400-001 input from external equipment and continuously does built-in-test diagnostics.
Page 41 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1. TCAS System Components (Honeywell Supplied) (cont) Honeywell Equipment Type Part Number Description Directional Antenna (cont) ANT-81A (cont) 071-50001 During TCAS receptions, each of the four directional antenna elements accepts any 1090-MHz rf signal that is present. The phasing of these received signals is calculated by the direction that the rf energy is received.
Page 42 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1. TCAS System Components (Honeywell Supplied) (cont) Honeywell Equipment Type Part Number Description TA/VSI (Traffic Advisory/Vertical Speed Indicator) (cont) The vertical speed display operates from pneumatic IVA-81A/IVA-81D (cont) IVA-81A: 066-50001 or air data electrical input. The display receives RA,...
Page 43 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1. TCAS System Components (Honeywell Supplied) (cont) Honeywell Equipment Type Part Number Description RA/VSI (Resolution Advisory/Vertical Speed Indicator) The indicator is a front-panel attached, IVA-81B 066-50002 electro-mechanical display unit. The unit displays NOTE 4.
Page 44 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1. TCAS System Components (Honeywell Supplied) (cont) Honeywell Equipment Type Part Number Description Dedicated TCAS Traffic Display The ITA-81A is a front-panel attached cathode ray tube ITA-81A 066-50003 (CRT) TCAS display unit. The display receives the traffic and TCAS mode data on a high-speed ARINC 429 bus from the TPA-100A TCAS processor.
Page 45 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1. TCAS System Components (Honeywell Supplied) (cont) Honeywell Equipment Type Part Number Description TRA-67 Transponder Subsystem (cont) TRA-67A Mode S 066-01127 Once for each second of time, Mode S Transponder (cont) transponders automatically transmit a squitter message that contains its aircraft address identification.
Page 46 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1. TCAS System Components (Honeywell Supplied) (cont) Honeywell Equipment Type Part Number Description TRA-67 Transponder Subsystem (cont) Through the directional TCAS antenna, all TCAS equipped aircraft at intervals transmit a message that tells other TCAS equipped aircraft that a TCAS equipped aircraft is present.
Page 47 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1. TCAS System Components (Honeywell Supplied) (cont) Honeywell Equipment Type Part Number Description TRA-67 Transponder Subsystem (cont) TRA-67A Mode S (cont) 066-01127 The Mode S transponder receives 115 V 400 Hz from an aircraft power source. If a synchro altitude source...
Page 48: Tcas Accessories
Table 1. TCAS System Components (Honeywell Supplied) (cont) NOTES: 1. One or two directional antennas can be used in a CAS-100 system. A top-mounted ANT-81A is always necessary. To find intruder bearing on bottom antenna, an ANT-81A must be installed on the bottom of the aircraft.
Page 49: Aircraft Equipment Required But Not Supplied By Honeywell
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM D. Aircraft Equipment Required But Not Supplied By Honeywell Table 3. lists aircraft equipment not supplied by Honeywell, but required for CAS-100 operation. Table 3. Aircraft Equipment Required But Not Supplied By Honeywell Aircraft Equipment...
Page 50 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 3. Aircraft Equipment Required But Not Supplied By Honeywell (cont) Aircraft Equipment Description Aircraft Switches Landing Gear Switch Supplies the aircraft landing gear extended or retracted discrete status input to the TCAS processor.
Page 51: Aircraft Optional (Nonessential) Equipment
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM E. Aircraft Optional (Nonessential) Equipment Table 4 lists TCAS and aircraft equipment that is optional for each user specification. Table 4. CAS-100 and Aircraft Optional Equipment Optional Aircraft Equipment Description Cockpit Headphones Augments cockpit speaker by providing headset annunciations for verbal advisory alert messages from the voice synthesizer in TPA-100A TCAS Processor.
Page 52: Related Publications
CAS-100 Collision Avoidance System and test equipment supporting the system. 2. System Configurations A. System The total CAS-100 system configuration is dependent on the equipment available in the applicable aircraft. The following text gives the available configurations and features for the TCAS processor.
Page 53: Tpa-100A Tcas Processor
Unit 940-0400 -001 Table 6. TPA-100A TCAS Processor Features Feature Description Basic Unit Supplies primary function and control for CAS-100. Long range active surveillance. Passive (ADS-B) only surveillance. DTIF (Strap selectable). ARINC 615-3 DL. PCMCIA. Front panel LCD maintenance interface.
Page 54: Altitude Tracking Volumes
TCAS operation. The data in this manual can be superseded by the data in the Minimum Operational Performance Standards document and the latest Honeywell software documentation. Page 20...
Page 55 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM CAS-100 Sensitivity Level Altitude Layers Figure 2 Page 21 34-45-47 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 56: Table 7 Tcas Sensitivity Level Determinations
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 7 gives data related to sensitivity level determinations and Figure 3 gives data related to the conditions for resolution and traffic advisory limits compared to sensitivity levels. This data is used as a reference during this manual Table 7.
Page 57 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 7. TCAS Sensitivity Level Determinations (cont) Mode Description Sensitivity TCAS does surveillance and tracking functions in sensitivity levels 3 through 7. Level 3, 4, TCAS gives resolution and traffic advisories in these levels. NOTE...
Page 58 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Typical Resolution Advisory and Traffic Advisory Volumes for Sensitivity Levels Figure 3 (Sheet 1 of 2) Page 24 34-45-47 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 59 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM These two conditions cause a Traffic Advisories (TAs) problem: 1. TCAS calculates that at the current closure rate and distance, the time separating own aircraft and intruder aircraft is less than TA Alarm Time the altitude difference between own aircraft and intruder aircraft is less than the TA Relative Altitude Threshold.
Page 60: Component Leading Particulars
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM C. Component Leading Particulars Leading Particulars Leading particulars for the TPA-100A TCAS Processor are given in Table 8. Leading particulars for the ANT-81A Directional Antenna are given in Table 9. Leading particulars for the IVA-81A TA/VSI are given in Table 10. Leading particulars for the IVA-81B RA/VSI are given in Table 11.
Page 61 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 8. TPA-100A TCAS Processor Leading Particulars (cont) Characteristic Description Receiver (cont) Dynamic Minimum Trigger Level (DMTL) Threshold ATCRBS MTL + 13 dB Minimum Pulse Width 300 nsec Maximum Pulse Rise Time 0.5 µsec Delay Difference (between top and 0.050 µsec...
Page 62: Table 9 Ant-81A Tcas Directional Antenna Leading Particulars
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 9. ANT-81A TCAS Directional Antenna Leading Particulars Characteristic Description ARINC 735A (teardrop shape) Form Factor Curved base (071-50001-8104) Antenna Base Types Flat base (071-50001-8102, -8103) Temperature Range Operating -55C to +70C Storage -55C to +85C Maximum Weight 2.0 lb (0.91 kg)
Page 63: Environmental Certification
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 9. ANT-81A TCAS Directional Antenna Leading Particulars (cont) Characteristic Description Main Beam Characteristics Operational Beam Positions Half Power Azimuth Beam Width ≥ 90° (measured over -15 to +20 elevation) Steering Quantization 90° Omni Beam Characteristics Operational Beam Positions 360°...
Page 64: Table 10 Iva-81A Ta/Vsi Leading Particulars
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 10. IVA-81A TA/VSI Leading Particulars Characteristic Description 3ATI x 7.5 inches deep Form Factor Solid state, no mechanical parts Components Maximum Weight 2.75 lb (1.25 kg) Overall Dimensions See Outline Drawing, Figure 2011.
Page 65 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 10. IVA-81A TA/VSI Leading Particulars (cont) Characteristic Description See Outline Drawing, Figure 2011. Pneumatic Connector (located on indicator rear panel) See Outline Drawing, Figure 2011. Electrical Connector (located on indicator rear panel) C119a, C8c Environmental Certification Refer to Table 14.
Page 66: Table 11 Iva-81B Ra/Vsi Leading Particulars
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 11. IVA-81B RA/VSI Leading Particulars Characteristic Description 3ATI x 7.5 inches deep Form Factor Electromechanical and solid state Components Maximum Weight 2.9 lb (1.3 kg) Overall Dimensions See Outline Drawing, Figure 2012. Mounting...
Page 67: Table 12 Iva-81D Ta/Vsi Leading Particulars
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 12. IVA-81D TA/VSI Leading Particulars Characteristic Description 3ATI x 7.5 inches deep Form Factor Solid state, no mechanical parts Components Maximum Weight 3.0 lb (1.4 kg) Overall Dimensions See Outline Drawing, Figure 2013.
Page 68 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 12. IVA-81D TA/VSI Leading Particulars (cont) Characteristic Description High-speed ARINC 429 Data Input Optional Front-mounted Range Control Front-mounted TA SEL Switch and BRT Con- Optional trol Pneumatic Connector (located on indicator See Outline Drawing, Figure 2013.
Page 69: Table 13 Ita-81A Traffic Display Leading Particulars
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 13. ITA-81A Traffic Display Leading Particulars Characteristic Description 8 lb (3.7 kg) Maximum Weight See Outline Drawing, Figure 2014. Overall Dimensions Dzus Mounting Mounting 115 V, 400 Hz, 35 W nominal Power Input Requirements...
Page 70: Table 14 Do-160D Environmental Certification Categories
CAS-100 equipment meets the environmental conditions of the Radio Technical Commission for Aeronautics document number DO-160D, Environmental Conditions and Test Procedures for Airline Electronic/Electrical Equipment and Instruments. Environmental certification categories for CAS-100 equipment are defined in Table 14. Table 14. DO-160D Environmental Certification Categories Certification...
Page 71: System Description
Intro-1. B. CAS-100 Functional Overview The basic CAS-100 system does traffic alert and collision avoidance functions to give safe separation between own aircraft and other aircraft equipped with Mode S transponders, ATCRBS Mode C transponders, or ATCRBS Mode A/C transponders.
Page 72: Tracking Function
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Tracking Function • Tracks maximum 45 combined Mode S and Mode A/C transponder equipped intruder aircraft. Tracks range of intruder aircraft. Tracks intruder relative bearing if tracking is occurring on a directional antenna. Tracks intruder relative altitude if intruder is reporting altitude.
Page 73: Air-To-Air Coordination Function
A. TCAS Processor General The TPA-100A TCAS processor is the primary control unit in the CAS-100 system. The processor has a combined computerized control system and L-band receiver/transmitter. The operation of the TCAS system is controlled by TCAS software in the computer control memory.
Page 74 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Own aircraft identification (ID) code (transponder ID) received on the ARINC 429 data bus from own Mode S transponder. Own aircraft identification is input to the transponder through 24 discrete bit strapped inputs. Own aircraft identification is used by the TCAS processor during air-to-air coordination procedures.
Page 75 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Collision Avoidance System Simplified Block Diagram Figure 4 34-45-47 Page 41/42 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 76 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Five discrete input from RA/TA Intruder Display Limit straps. These straps determine the maximum number of aircraft that can be shown on the traffic display (from 1 to 30). Discrete input from Ground Display Mode strap. This input determines if the traffic is shown when own aircraft is on-the-ground.
Page 77: Real-Time Tcas Functions Controlled By Processor
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Six discrete input from synthesized Audio Level Control straps. Three of these straps determine the audio output levels to the speaker and phones when the aircraft is airborne. The other three straps determine the audio output levels when the aircraft is on the ground.
Page 78 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM The TCAS processor starts to interrogate the intruder if a correct Mode S squitter message is sensed. The Mode S equipped intruder is put into the track if an interrogated Mode S equipped aircraft is in TCAS Mode S tracking range and altitude.
Page 79 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM ATCRBS Mode C and Mode S Interrogation Formats Figure 5 Page 46 34-45-47 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 80 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM ATCRBS/Mode S Transponder Reply Message Formats Figure 6 Page 47 34-45-47 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 81 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM The TCAS processor calculates the correct resolution advisory to keep or make sure of the safe separation between own and threat category aircraft. The TCAS processor then outputs resolution advisory data on the ARINC 429 buses to the TA/VSI or RA/VSI units.
Page 82 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM (m) The TCAS processor also controls: 1 Scheduling for interrogations done on the directional and omni antennas. 2 TCAS sensitivity level operating modes. 3 Generation of coasting data during the periods when tracking data is temporarily not found.
Page 83: Power Requirements
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM If the ADS-B program pin is strapped as part of the installation approval process, the use and display of passive/ADS-B data must be validated. Part of this process will include: 1 Ensure that the existing displays which do not process the DTIF output do still correctly receive and process the standard TCAS traffic file.
Page 84: Rear Connector
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Rear Connector A six section rear connector supplies the system connects to the TCAS processor. The six sections of the connector are shown left bottom plug (LBP), right bottom plug (RBP), left middle plug (LMP), right middle plug (RMP), left top plug (LTP), and right top plug (RTP).
Page 85 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM TCAS Transmit and Receive Beam Patterns for Directional Antenna Figure 7 All pulses in a TCAS (Mode S) message transmission from the directional antenna are radiated as a directional main beam pattern. To get the main beam pattern, the four signals representing each transmit pulse are phase shifted by the TCAS processor.
Page 86 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM ATCRBS Mode A/C transponders in the adjacent airspace that sense a suppression beam signal larger in amplitude than the main beam signal, are prevented from replying to the interrogation. The result of the ATCRBS P2 hold back is to control the good TCAS interrogation beam width and thus limit interference from unwanted ATCRBS receptions.
Page 87: Ta/Vsi Display
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM C. TA/VSI Display General The IVA-81A/D Resolution Advisory/Traffic Advisory/Vertical Speed Indicator (TA/VSI) display is a high resolution, sunlight readable, full color, liquid crystal display (LCD) (Figures 2011, 2012, and 2013). The indicator lets resolution advisory and traffic data be shown in the space previously for display of vertical speed only.
Page 88: Traffic Display
The selected traffic display functions as a self-sufficient auxiliary device controlled by the TPA-100A TCAS processor through one high-speed ARINC 429 data bus. The traffic displays are secondary displays in the total CAS-100 system. (Resolution advisories on the TA/VSI and RA/VSI are the primary TCAS displays). The traffic display helps the pilot visually acquire a threat intruder aircraft before resolution advisory threat conditions.
Page 89: Ra/Vsi Display
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Display range limit control, ABOVE/NORM/BELOW nonthreat altitude display limit control, and relative/flight level altitude display control data originating from the transponder/TCAS control unit and received by the traffic display through the Mode S transponder and TCAS processor.
Page 90: Ita-81A Traffic Display
ARINC 429 data bus. The PPI does not show resolution advisories. G. Mode S Transponder The Mode S Transponder does the following functions in the CAS-100 system: • Automatically transmits 1090 MHz Mode S squitter messages each second. These squitter messages tell other TCAS equipped aircraft and ground stations that own Mode S equipped aircraft is present.
Page 91: Control Unit
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM • Supplies the following data to the TPA-100A TCAS Processor through a ARINC 429 data link: -- Own aircraft identification code, pressure altitude, and maximum airspeed data. -- TCAS broadcast data and air-to-air resolution advisory coordination data received from other TCAS equipped aircraft.
Page 92: Tcas And Mode S Transponder Omnidirectional Antennas
B. Detailed Block Diagrams and Description of Input/Output Signals The Figure 8 is a block diagram of the CAS-100 system unit connects to the TPA-100A TCAS Processor. The Table 10 gives the TCAS Processor input/output signals. Interwiring diagram,...
Page 93 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Refer to Table 15 for the TPA-100A TCAS Processor input and output. The IVA-81A/D TA/VSI and IVA-81B RA/VSI input and output are shown in Table 16. Table 17 shows the input and output of the ITA-81A Traffic Display.
Page 94 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM TCAS Processor System Interconnect Block Diagram Figure 8 (Sheet 1 of 3) Page 61/62 34-45-47 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 95 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM TCAS Processor System Interconnect Block Diagram Figure 8 (Sheet 2 of 3) Page 63/64 34-45-47 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 96 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM TCAS Processor System Interconnect Block Diagram Figure 8 (Sheet 3 of 3) Page 65/66 34-45-47 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 97: Table 15 Tpa-100A Tcas Processor Inputs And Outputs
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 15. TPA-100A TCAS Processor Inputs and Outputs Source Or Processor I/O Signal General Destination Name and Type Description TCAS ANTENNA RELATED I/O Directional Antenna Top and bottom directional antenna. 1030-MHz differential phase shift...
Page 98 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 15. TPA-100A TCAS Processor Inputs and Outputs (cont) Source Or Processor I/O Signal General Destination Name and Type Description OWN ATTITUDE AND HEADING RELATED I/O Synchro Magnetic Heading Synchro X, Y, Z Heading...
Page 99 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 15. TPA-100A TCAS Processor Inputs and Outputs (cont) Source Or Processor I/O Signal General Destination Name and Type Description OWN ALTITUDE RELATED I/O Analog Radio Altimeter ± Analog Radio Altitude No. 1 Input AGL altitude data to TCAS processor No.
Page 100 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 15. TPA-100A TCAS Processor Inputs and Outputs (cont) Source Or Processor I/O Signal General Destination Name and Type Description OWN AIRCRAFT PERFORMANCE LIMIT AND FLIGHT STATUS RELATED I/O Cont Five Strapped Pins on...
Page 101 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 15. TPA-100A TCAS Processor Inputs and Outputs (cont) Source Or Processor I/O Signal General Destination Name and Type Description RA AND TA DISPLAY RELATED I/O (cont) TA/VSI No. 1 or RA/VSI Display Status No. 3 Discrete Failure status output of PPI or No.
Page 102 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 15. TPA-100A TCAS Processor Inputs and Outputs (cont) Source Or Processor I/O Signal General Destination Name and Type Description RA AND TA DISPLAY RELATED I/O (cont) RA/VSI No. 2 (RA/VSI that Display Status No. 2 Discrete RA/VSI No.
Page 103 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 15. TPA-100A TCAS Processor Inputs and Outputs (cont) Source Or Processor I/O Signal General Destination Name and Type Description RA AND TA ALERT RELATED I/O Three Strapped Pins on Audio Level Program Straps...
Page 104 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 15. TPA-100A TCAS Processor Inputs and Outputs (cont) Source Or Processor I/O Signal General Destination Name and Type Description MAINTENANCE RELATED I/O Maintenance Computer or Maintenance Data. ARINC 429 Maintenance digital 429 data from...
Page 105 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 15. TPA-100A TCAS Processor Inputs and Outputs (cont) Source Or Processor I/O Signal General Destination Name and Type Description SUPPRESSION BUS RELATED I/O Own Aircraft L-Band Suppression Pulse input/output Bi-directional bus. An input pulse Equipment suppresses the TCAS receiver.
Page 106 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM THIS PAGE LEFT BLANK Page 76 34-45-47 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 107 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM IVA-81A/D and IVA-81B RA/VSI System Interconnect Block Diagram Figure 9 34-45-47 Page 77/78 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 108: Table 16 Iva-81A/D Ta/Vsi And Iva-81B Ra/Vsi Inputs And Outputs
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 16. IVA-81A/D TA/VSI and IVA-81B RA/VSI Inputs and Outputs Source Or I/O Signal General Destination Name and Type Description TCAS PROCESSOR RELATED I/O TCAS Processor TCAS Data High-Speed ARINC Traffic display and resolution advisory...
Page 109 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 16. IVA-81A/D TA/VSI and IVA-81B RA/VSI Inputs and Outputs (cont) Source Or I/O Signal General Destination Name and Type Description VERTICAL RATE SOURCE RELATED I/O (cont) Aircraft Digital ARINC 575 Altitude Rate Data. Digital ARINC Same as above.
Page 110: Tcas Failure Monitoring
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 17. ITA-81A Traffic Display Inputs and Outputs Source Or I/O Signal General Destination Name and Type Description TCAS PROCESSOR RELATED I/O TCAS Processor TCAS Data High-Speed ARINC Traffic display data from TCAS processor to dedicated TCAS traffic display.
Page 111: Controls And Indicators
CAS-100 COLLISION AVOIDANCE SYSTEM 7. Controls and Indicators A. General The primary manual controls used to operate the CAS-100 system are contained on the transponder/TCAS control units. NOTE: TCAS advisory and/or serviceable status indications are given on the TA/VSI, RA/VSI, PPI, dedicated traffic display, cockpit audio system, transponder/TCAS control unit, front panel of the TCAS processor, and front panel of the Mode S transponder unit.
Page 112 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM CTA-81A Control Unit (Typical) Figure 10 Refer to Table 18 for the CTA-81A Control Unit controls and indicators. Page 83 34-45-47 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 113: Table 18 Cta-81A Control Unit Controls And Indicators
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 18. CTA-81A Control Unit Controls and Indicators Control/Indicator (See Figure 10) Function ATC 1-2 Switch Sets one of two Mode S transponders to be under control of the CTA-81A Control Unit. The nonselected Mode S transponder is put in STANDBY mode.
Page 114 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 18. CTA-81A Control Unit Controls and Indicators (cont) Control/Indicator (See Figure 10) Function Function Selector Switch (cont) ALT OFF Position In-Flight - Turns on Mode S transponder to fully active state and (cont) places TCAS in STANDBY mode (TCAS sensitivity level No.
Page 115 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 18. CTA-81A Control Unit Controls and Indicators (cont) Control/Indicator (See Figure 10) Function Function Selector Switch (Cont.) TA Position (TA ONLY Mode) In-Flight - Turns the Mode S transponder to the operation condition (Cont.)
Page 116 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 18. CTA-81A Control Unit Controls and Indicators (cont) Control/Indicator (See Figure 10) Function Function Selector Switch Mode C and Mode A interrogations. TCAS broadcasts and does (Cont.) all Mode S and ATCRBS surveillance and tracking functions.
Page 117 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 18. CTA-81A Control Unit Controls and Indicators (cont) Control/Indicator (See Figure 10) Function TCAS RANGE Switch Four position rotary switch. Sets 15, 10, 5, or 3 nautical mile (NM) range scale for the traffic display. The set display scale is annunciated 15 NM, 10 NM, 5 NM, or 3 NM on the traffic display.
Page 118 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 18. CTA-81A Control Unit Controls and Indicators (cont) Control/Indicator (See Figure 10) Function Code Select Knobs Lets selection of transponder identification code. The transponder inserts this code into replies to Mode A interrogations and Mode S ATC identification requests from ground stations.
Page 119 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM CTA-81B Control Unit (Typical) (Used With One Mode S Transponder and One ATCRBS Transponder) Figure 11 Refer to Table 19 for the CTA-81B Control Unit controls and indicators. Page 90 34-45-47 1 Dec 2003...
Page 120: Table 19 Cta-81B Control Unit Controls And Indicators
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 19. CTA-81B Control Unit Controls and Indicators Control/Indicator (See Figure 11) Function Function Selector Switch Rotary switch. Controls operating modes of one Mode S transponder (ATC 1 positions) and one ATCRBS transponder (ATC 2 positions). Requests TCAS operating modes (NOTES 1.
Page 121 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 19. CTA-81B Control Unit Controls and Indicators (cont) Control/Indicator (See Figure 11) Function Function Selector Switch (cont) ATC 1 ON Position In-Flight - Turns on the Mode S transponder to full on condition, removes power from ATCRBS transponder, and puts the TCAS in STANDBY mode (TCAS sensitivity level No.
Page 122 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 19. CTA-81B Control Unit Controls and Indicators (cont) Control/Indicator (See Figure 11) Function Function Selector Switch (cont) ATC 1 TA Position (TCAS sensitivity level No. 2). The Mode S transponder transmits (cont) squitters and replies to the Mode S, ATCRBS Mode C, and Mode A interrogations.
Page 123 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 19. CTA-81B Control Unit Controls and Indicators (cont) Control/Indicator (See Figure 11) Function Function Selector Switch (cont) ATC 1 TA/RA Position The Mode S transponder transmits squitters and replies fully to the (cont) Mode S, ATCRBS Mode C, and Mode A interrogations.
Page 124 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 19. CTA-81B Control Unit Controls and Indicators (cont) Control/Indicator (See Figure 11) Function ALT SOURCE 1/2 Switch Sets one of two barometric altimeter sources to the activated Mode S or ATCRBS transponder. The OFF POSITION makes unserviceable the altitude squawk (two altitude sources only).
Page 125 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 19. CTA-81B Control Unit Controls and Indicators (cont) Control/Indicator (See Figure 11) Function NORM Position Selects display of nonthreat aircraft up to +2700 feet above own aircraft and down to -2700 feet below own aircraft on traffic display.
Page 126 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 19. CTA-81B Control Unit Controls and Indicators (cont) Control/Indicator (See Figure 11) Function NOTES: 1. The TCAS operating modes are requested from the transponder/TCAS control unit (For example, TA/RA mode is requested by turning function selector switch to TA/RA). The TCAS processor can or can not go into the requested mode dependent on prevailing conditions.
Page 127 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM CTA-100A Controllers Figure 12 Page 98 34-45-47 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 128: Table 20 Cta-100A Control Unit Controls And Indicators
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 20. CTA-100A Control Unit Controls and Indicators Control/Indicator (See Figure 12) Function Mode Select Switch Rotary switch. Supplies mode control for the transponders and TCAS processor. The mode selector switch can put the transponders into standby mode or active mode with altitude interrogation on or off.
Page 129 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 20. CTA-100A Control Unit Controls and Indicators (cont) Control/Indicator (See Figure 12) Function Mode Select Switch (cont) ALT OFF Position The STANDBY/On discrete output is set to ON for the set transponder. BIT 11 of ARINC label 016 is set to 1 to inhibit altitude reporting.
Page 130 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 20. CTA-100A Control Unit Controls and Indicators (cont) Control/Indicator (See Figure 12) Function Mode Select Switch (cont) TA/RA Position (cont) (NOTE 3.) On-the-Ground - The Mode S transponder squitters and replies fully to Mode S interrogations. Depending on transponder strapping, the transponder replies fully or does not reply to ATCRBS Mode C, Mode A, or Mode S interrogations.
Page 131 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 20. CTA-100A Control Unit Controls and Indicators (cont) Control/Indicator (See Figure 12) Function ABOVE/BELOW Pushbutton The ABOVE/BELOW pushbutton is used to set relative altitude display limits for nonthreat category aircraft on the traffic display.
Page 132 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 20. CTA-100A Control Unit Controls and Indicators (cont) Control/Indicator (See Figure 12) Function ENT Pushbutton The ENT pushbutton is for showing current Flight identification when the Flight ID mode is set in the display. The ENT pushbutton will confirm the Flight ID data entry and send the value along the ARINC 429 databus.
Page 133: Ta/Vsi
RAs that can not be displayed by a symbol because bearing is not available. TAs and RAs that are outside the range scale of the traffic display show operating modes and fail conditions. NOTE: A pilot manual supplied by Honeywell gives the TA/VSI operation in detail. Page 104 34-45-47 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 134 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM TA/VSI Controls and Indicators Figure 13 Page 105 34-45-47 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 135: Table 21 Ta/Vsi Ras And Audio Messages
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 21. TA/VSI RA’s and Audio Messages Resolution Advisory Audio Message CLIMB Climb, Climb DESCENT Descend, Descend CROSSOVER Climb, Crossing Climb-- CLIMB Climb, Crossing Climb CROSSOVER Descend, Crossing Descend-- DESCENT Descend, Crossing Descend VERTICAL SPEED RESTRICTED...
Page 136: Ra/Vsi
(Refer to the TCAS pilot manual.) The VSI for the TCAS applications has flags that show the TCAS operating conditions. The Honeywell made RA/VSI receives resolution advisory and flag control data from the TPA-100A TCAS processor through a high-speed ARINC 429 data link.
Page 137 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Two Flags TCAS Flag Color Description RA OFF Black RA OFF on White Shows an impairment of the TCAS function which is due to a loss of essential aircraft data, or TCAS data, indicator power OFF, TCAS in STBY mode or TCAS in TA mode.
Page 138: Ppi Radar/Tcas Display
TCAS traffic display or a total weather radar/TCAS presentation. The PPI Radar/TCAS display integration into the CAS-100 system is given in isolated manuals recorded in Table Intro-1. NOTE: A pilot manual supplied by Honeywell gives the PPI Radar/TCAS display operation in detail.
Page 139: Range Selection And Range Rings
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM M. Range Selection and Range Rings The traffic advisory display range selection is controlled externally, through the data input to the display on the ARINC 429 bus, or internally, using a front panel selector switch (PPI weather/traffic display).
Page 140 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM ITA-81A Traffic Display Controls and Indicators Figure 15 Page 111/112 34-45-47 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 141 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM PPI Radar/TCAS Display Controls and Indicators Figure 16 Page 113/114 34-45-47 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 142: Testing And Fault Isolation
Fault isolation is the function to find the source of a TCAS failure at the assembly level (black box level) or the aircraft wiring level. Fault isolation for CAS-100 includes the performance of TCAS functional tests and the inspection of the TCAS failure indicators. Then the fault isolation includes the performance of applicable removal and replacement, or the aircraft wiring repair procedures to correct the problem.
Page 143: Using Transponder/Tcas Control Unit
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM There are two different procedures to start and monitor functional self test of the TCAS/Mode S system. The first is started at the transponder/TCAS control unit and the sensed failures are shown on the traffic display, but for the IVA-81A/D TA/VSI. The second procedure is started in the equipment bay using the two buttons found on the front panel of the TCAS processor, and then monitoring the TCAS Processor front panel LED display.
Page 144 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Test Pattern Figure 1001 2 After the RA/VSI sequence lamp test, the red and green climb/descend lamps show a set test command that shows a typical resolution advisory during the remaining test sequence. NOTE: The missing correct vertical speed input causes the VSI flag to come into the view on the RA/VSI.
Page 145: Failure Detected During Self-Test
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Failure Detected During Self-Test If a failure is found during self-test, the voice message output from the TCAS processor is, TCAS System Test Fail. The PPI Radar/TCAS display or dedicated display will show the failed system component(s).
Page 146 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Self-Test Using CTA-81( ) Indicators The following self-test data applies to the CTA-81( ) indicators: Control unit ATC FAIL lamp monitors the transponder functions only. On the control unit, letter R comes on in the TEST. The letter R comes on in the ATC-2 position for the aircraft that have a non-Mode S transponder.
Page 147: Table 1001 Mode S Line Maintenance Troubleshooting Procedure
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1001. Mode S Line Maintenance Troubleshooting Procedure (Fault Indication on PPI or Dedicated Display). Fault Annunciation Remedy XPNDR TOP ANT Check: Coaxial connectors, Coax cable, Coax XPNDR LOWER ANT Switches, Coax switch circuit defective, Transponder antenna No.
Page 148: Table 1002 Tcas Line Maintenance Troubleshooting Procedure
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1002. TCAS Line Maintenance Troubleshooting Procedure (Fault Indication on PPI or Dedicated Display) Fault Annunciation Remedy TCAS PROCESSOR Do the TCAS processor self test UPPER ANTENNA (paragraph 2.C.) for specifics. LOWER ANTENNA ATTITUDE...
Page 149 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM C. Using TCAS Processor Front-Panel Buttons and LCD Display NOTE: Refer to applicable Mode S transponder system maintenance manual for front-panel self tests of Mode S transponder. General The TPA-100A TCAS Processor front panel contains a four-line, 16 character for each line Liquid Crystal Display (LCD) and two pushbutton controls as shown in Figure 1002.
Page 150 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM TCAS Processor Front Panel LCD and Pushbuttons Figure 1002 Page 1009 34-45-47 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 151 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM The Figure 1003 shows a typical Main Menu screen. If the Select button is pushed, the system status menu is shown. If the Scroll button is pushed one time, the caret moves to START TEST. If the Scroll button is pushed again, the caret moves to STORED FAULTS on page 2 of the menu.
Page 152 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1003. Unit Internal Faults Internal Faults Fault Identification DM CPU MCE PCI SP Fault CPU1 DM CPU MCE PCI IO Fault CPU2 DM CPU MCE PCI 429 Fault CPU3 DM CPU MCE PCI Unknown Fault...
Page 153 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1003. Unit Internal Faults (cont) Internal Faults Fault Identification TRM 5 TTM min8 PTM8 TTM 3.3 ref PT3R TTM 30v ref PT30 TTM 32v e4 PT24 TTM 32v e3 PT23 TTM 32v e2...
Page 154 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1003. Unit Internal Faults (cont) Internal Faults Fault Identification DM TX Coord Bus # 2 Loop Around Bad DL12 DM 429 TA/RA Disp 1 FIFO Busy Error DM 429 TA/RA Disp 2 FIFO Busy Error...
Page 155 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1003. Unit Internal Faults (cont) Internal Faults Fault Identification TX Output Power Low - Channel 3 T3PW TX Output Power Low - Channel 4 T4PW 1030 TX Frequency 1030 TTM Power Leveling TLVL...
Page 156 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1004. System and Input Faults Front Panel Text Fault Description Top Ant Fail 1. TX Cal Delta 24 or 31 Top (Antenna Failure) Top Ant E1 1.1 Top Antenna Element 1 failed Top Ant E2 1.2 Top Antenna Element 2 failed...
Page 157 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1004. System and Input Faults (cont) Front Panel Text Fault Description 16. FMC (for aircraft type not A330 and not A340) 16.1 FMC (for A340 and A330) Suppression Line 17. Suppression Line TCAS Unit Failed 18.
Page 158: Table 1005 Program Pin Faults
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1005. Program Pin Faults Front Panel Text Fault Description PP RMP 12A Analog Radio Altimeter Prgm, RMP 12A PP RMP 12B Analog Radio Altimeter Prgm, RMP 12B PP RMP 12C Analog Radio Altimeter Prgm, RMP 12C...
Page 159 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1005. Program Pin Faults (cont) Front Panel Text Fault Description PP RMP 6E Altitude Limit Prgm, RMP 6E PP RMP 6F Altitude Limit Prgm, RMP 6F PP RMP 6G Altitude Limit Prgm, RMP 6G...
Page 160 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM The three possible results of the test are: (a) No faults (unit and system ok) (b) System or input faults (unit ok, system failed) (c) Internal faults (unit failed/system failed) To push the Select button with the caret at SYSTEM FAILED or UNIT FAILED causes a display screen with the entries that include the applicable found faults.
Page 161 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1006. Active Unit, System and Input Faults, and Display Status Indication Unit (Status) Active Unit Active System Active Input System/Input Faults Faults Faults (Status) Unit OK System OK Unit OK *Inputs Faulted Unit OK...
Page 162 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Start Test/Test Inhibited Sample Flow Diagram Figure 1004 Page 1021 34-45-47 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 163 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Stored Faults To push the Select button when STORED FAULTS (see main menu Figure 1003) is the active selectable item, causes the Stored Faults screen to be shown (Figure 1005). The fault data is shown five legs back from the most recent fault to the oldest fault. The title of the Stored Fault Display shows in which leg the stored fault is found.
Page 164 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Stored Faults LCD Screen Example Figure 1006 Page 1023 34-45-47 1 Dec 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 165 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Configuration Display Screen To push the Select button when the Configuration is the Active Selectable Item on the Menu screen causes the Configuration Screen to come into the view. A representation of a two page Configuration screen is shown in Figure 1007.
Page 166 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Inputs Display Screen To push the Select button when Input is the Active Selectable Item on the Menu Screen causes the Input select screen page 1/3 to come into the view. See Figure 1008. Refer to Table 1007 for Program Pin displayed text and fault descriptions.
Page 167: Table 1007 Program Pins
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1007. Program Pins Program Display Text Fault Description PP RBP 6J Single Xpdr One Transponder Program Pin shows how many transponders are installed: *O = Both Transponders Installed *1 = One Transponder Installed...
Page 168 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1007. Program Pins (cont) Program Display Text Fault Description PP RBP 8A On Ground Audio Level No. 1 Ground Audio Level Program Pins find the speaker and phones audio level output when the aircraft is on PP RBP 8B On Ground Audio Level No.
Page 169 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Discretes Display Screen Figure 1009 is an example of a Discrete screen. The line 1 contains the screen title, the line 2 shows the pin number followed by Open or Ground. The lines 3 and 4 are reserved for the name of the discrete.
Page 170 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1008. Discrete Pin Numbers Discrete Pin Display Text Discrete Description Number RBP5A Advisory Inhibit 1 The four input to TCAS prevent annunciations when more important events occur. The source of the four RBP5B Advisory Inhibit 2 input are Input 1, Aircraft System;...
Page 171 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1008. Discrete Pin Numbers (cont) Discrete Pin Display Text Discrete Description Number RMP5K Air/Ground 1 The Air/Ground Discrete Input for the Air/Ground relay. The normal failure mode is the airborne condition. The following applies:...
Page 172: Table 1009 Advisory Inhibit And Tcas Mode Data
MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Table 1009. Advisory Inhibit and TCAS Mode Data Advisory Inhibit No.1 No.2 No.3 No.4 TCAS Mode Standby (SL=1) TA Only (SL=2) TA Only (SL=2) TA Only (SL=2) Normal Where 0 = Open 1 = Ground X = Don't care NOTE: Advisory Inhibit 1 has precedence over the other Advisory Inhibit input.
Page 173 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM 1 Digital Radio Altitude The Figure 1010 shows an example of a Digital Radio Altitude screen. The line 2 shows the correct radio altitude from the No. 1 digital data source. The plus (+) sign in position 16 of line 2 shows that Altitude No. 1 source is the active input.
Page 174 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM 3 Pressure Altitude The pressure altitude data is supplied to TCAS from the transponder through XT Coordination No. 1 and No. 2 ARINC 429 data bus (Data Word Label 203). The Figure 1012 shows a sample Pressure Altitude screen. The line two contains the altitude data from XT Coordination No.
Page 175 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM 5 Pitch An example of a Pitch display screen is shown in Figure 1014. The line two shows the data from ARINC 429 Mag Heading/Allotted data bus (label 324). The (+) shows that source is the active source. If the Pitch data from the 429 data source is not correct, then line two can show INVALID.
Page 176 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM 7 Climb Inhibit An example of a Climb Inhibit display screen is shown in Figure 1016. The second line shows if climb is inhibited or not (yes or no). The line three shows if increased climb is inhibited (yes or no).
Page 177 MAINTENANCE MANUAL CAS-100 COLLISION AVOIDANCE SYSTEM Mode-S Address To push the Select button when Mode-S Address is the Active Selectable Item on the Input screen causes the Mode-S Address display screen to display. The Figure 1018 shows an example of the Mode-S Address screen. Line two shows the hexadecimal address of transponder No.

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