User's Manual Part 1

ManualsBrandsACSS an L-3 Communications and Thales ManualsElectronicsTCAS

Aviation Communication and Surveillance Systems

19810 North 7th Avenue

Phoenix, Arizona 85027--4400

U.S.A.

15 FEBRUARY 2003

34-43-20

Page T--1

PRINTED IN U.S.A.

PUB. NO. 8000451--001

CAS

Traffic and Terrain Collision Avoidance

System

System Description and

Installation Manual

Summary of content (150 pages)

PAGE 1
Aviation Communication and Surveillance Systems 19810 North 7th Avenue Phoenix, Arizona 85027--4400 U.S.A. T2CAS Traffic and Terrain Collision Avoidance System System Description and Installation Manual 34-43-20 Page T--1 PRINTED IN U.S.A. PUB. NO.
PAGE 2
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 PROPRIETARY NOTICE This document and the information disclosed herein are proprietary data of ACSS. Neither this document nor the information contained herein shall be used, reproduced, or disclosed to others without the written authorization of ACSS, except to the extent required for installation or maintenance of the recipient’s equipment.
PAGE 3
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 RECORD OF REVISIONS For each revision, put the revised pages in your manual and discard the superseded pages.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 A shows ACSS is the incorporator.
PAGE 4
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Blank Page Page RR--2 15 Feb 2003 34-43-20 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 5
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 RECORD OF TEMPORARY REVISIONS Read the location instructions on each temporary revision page to know where to put the pages in your manual. Remove temporary revision pages only when discard instructions are given. For each temporary revision, give the correct data in the applicable columns. Temporary Revision No.
PAGE 6
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Blank Page 34-43-20 Page RTR--2 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 7
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 SERVICE BULLETIN LIST Service Bulletin Identified Mod Date Included in this Manual 34-43-20 Description Page SBL--1 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 8
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Blank Page 34-43-20 Page SBL--2 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 9
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No.
PAGE 10
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No.
PAGE 11
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No.
PAGE 12
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No.
PAGE 13
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No.
PAGE 14
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Blank Page LEP--6 15 Feb 2003 34-43-20 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 15
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 TABLE OF CONTENTS Section Page INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INTRO--1 1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INTRO--1 2. Reference Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 16
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Page Section G. VSI/TRA Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--44 (1) Functional Description and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--46 (2) Software Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 17
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Section Page G. VSI/TRA Provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--5 H. TAWS Terrain Hazard Display Provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--5 I. Transponder Provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--8 (1) Mode S Data Link Transponder Provisions . . .
PAGE 18
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Page Section C. APM/ASDB Configurable Pinout and Pin Description . . . . . . . . . . . . . . . . . . . . . . 4--63 (1) Programmable Analog Input Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--63 (2) Programmable Digital Input/Output Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--68 (3) Programmable Discrete Input/Output Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 19
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Section E. Page TAWS/RWS Discrete Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--85 (1) Landing Gear Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--85 (2) Landing Flap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--85 (3) Terrain Inhibit . . . . . . . . . . . . . .
PAGE 20
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Page Section 4. System Self--Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5--3 A. TCAS Flight Deck Display Test Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5--3 (1) Short Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5--3 (2) Extended Test Mode . . . . . . . .
PAGE 21
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Section Page C. T2CAS Aural and Visual Annunciations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6--4 (1) TCAS Aural and VSI/TRA Annunciations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6--4 (2) TAWS/RWS Aural and Visual Annunciations . . . . . . . . . . . . . . . . . . . . . . . . . . 6--6 D. T2CAS Test Menu and System Status Pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 22
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Page Section 7. Procedure for the GPS Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7--7 A. Removal and Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7--7 B. Adjustment Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7--7 C. Repair Procedure . . . . . . . . . . . . . .
PAGE 23
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Section Page CLEANING/PAINTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9--1 1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9--1 2. Equipment and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 24
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 List of Illustrations Figure Page Figure 1--1. TCAS ll Advisory Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--8 Figure 1--2. TCAS/Mode S Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--9 Figure 1--3. TA/RA Airspace Coverage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--10 Figure 1--4.
PAGE 25
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 List of Illustrations (cont) Figure Page Figure 1--33. TAWS Display Test Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--83 Figure 2--1. ACSS King Air C90 TAWS Control Panel/Glareshield Switch Annunciators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--6 Figure 2--2. Typical Five--Button B737/757/767 Annunciator Switch Panels . . . . . . .
PAGE 26
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 List of Illustrations (cont) Figure Page Figure 6--1. TCAS Test Menu Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6--7 Figure 6--2. Typical System Status Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6--8 Figure 6--3. Typical Display Status Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6--9 Figure 6--4.
PAGE 27
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 List of Tables Table Page Acronyms and Abbreviations Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INTRO--2 Table 1--1. System Components Manufactured by ACSS ..................... Table 1--2. System Components Not Manufactured by ACSS Table 1--3. Directional Antenna Configurations 1--2 ................. 1--3 .............................. 1--4 Table 1--4.
PAGE 28
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 List of Tables (cont) Table Page Table 4--11. Analog Input Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--67 Table 4--12. 3W Synchro AC References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--67 Table 4--13. APM/ASDB Programmable Digital Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . 4--68 Table 4--14.
PAGE 29
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 INTRODUCTION 1. General This manual provides general system installation and maintenance instructions and theory of operation for the T2CAS Traffic and Terrain Collision Avoidance System. It also provides interface information and interconnect diagrams to permit a general understanding of the overall system.
PAGE 30
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 3. Weights and Measurements Weights and measurements in this manual use both U.S. and S.I. (metric) values. 4. Acronyms and Abbreviations The letter symbols for abbreviations are the same as shown in ANSI/IEEE Std 260 and ASME Y1.1, except as identified in the acronyms and abbreviations table.
PAGE 31
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No.
PAGE 32
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No.
PAGE 33
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Acronyms and Abbreviations Table (cont) Term Definition TRA traffic resolution advisory TSO Technical Standard Order VSI vertical speed indicator VSWR voltage standing wave radio WOW weight--on--wheels XPDR transponder 34-43-20 INTRO--5 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 34
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 5. Special Precautions Warnings, cautions, and notes in this manual give the data that follows: • A WARNING is an operation or maintenance procedure or condition, which, if not obeyed, can cause injury or death • A CAUTION is an operation or maintenance procedure or condition, which, if not obeyed, can cause damage to the equipment • A NOTE gives data to make the work easier or gives directions to go to a procedure.
PAGE 35
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 SYSTEM DESCRIPTION 1. General The T2CAS Traffic and Terrain Collision Avoidance System combines a terrain awarness warning system (TAWS) with the existing TCAS 2000 line replaceable unit (LRU) to form a combined system (T2CAS). Optionally, the T2CAS may contain Reactive Windshear (RWS) and/or global positioning satellite (GPS) functions within the same LRU.
PAGE 36
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 2. System Components Table 1--1 gives the components that are supplied by ACSS. Table 1--2 gives the components that are necessary, but are not manufactured by ACSS. Table 1--3 thru Table 1--5 provide additional component descriptions as follows: • Table 1--3. Directional Antenna Configurations • Table 1--4. Control Panel Configurations • Table 1--5. VSI/TRA Display Configurations. Table 1--1.
PAGE 37
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Table 1--2. System Components Not Manufactured by ACSS Component Comments Gables G7130 Series ATC/TCAS Dual Transponder Control Panel (Note 1.) General aviation type controller that operates from 28 V dc aircraft power (Note 2.) Gables G6990, G6991, G6992 and G6993 Series Mode S/TCAS Control Panels (Note 1.) Commercial aviation type controllers that operate from 115 V ac aircraft power (Note 2.
PAGE 38
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Table 1--3. Directional Antenna Configurations Antenna Part Number 1--4 Description 7514081--901 Directional antenna with flat base, four hole mounting pattern, and 1.560--inch connector extension length 7514081--902 Directional antenna with flat base, eight hole mounting pattern, and 1.560--inch connector extension length 7514081--903 Directional antenna with a curved 61.52--inch radius base, eight hole mounting pattern, and 1.
PAGE 39
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Table 1--4.
PAGE 40
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 3. System Description The T2CAS is a safety system that combines TCAS, Terrain Awareness and Warning System (TAWS), and optionally Reactive Windshear (RWS) and/or GPS functions in a single LRU. The TCAS function is an onboard advisory system designed to act as a backup to the air traffic control (ATC) radar and the “see and avoid” procedures.
PAGE 41
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 The first two levels of situational awareness include: • Non--threat Traffic, indicates other targets within the range of the display whose relative altitude is greater than ±1200 ft. vertically or a distance greater than six nautical miles from own aircraft. • Proximity Traffic, indicates the target is within ±1200 ft. vertically or within six nautical miles of own aircraft.
PAGE 42
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 1--1. TCAS ll Advisory Capabilities 1--8 15 Feb 2003 34-43-20 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 43
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 1--2. TCAS/Mode S Communication The TCAS function generates both RAs and TAs when the TA/RA mode is selected. The two types of advisories correspond to time--based protection zones around the aircraft. The airspace around the TCAS aircraft where an RA is annunciated represents the warning area, while the larger airspace which results in a TA being annunciated is the caution area.
PAGE 44
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 1--3. TA/RA Airspace Coverage 1--10 15 Feb 2003 34-43-20 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 45
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 1--4. Basic TCAS ll Installation (2) TAWS Functional Description The T2CAS TAWS function provides guidance to prevent Controlled Flight Into Terrain (CFIT).
PAGE 46
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 T2CAS uses data provided by the Flight Management Computer, the GPS receiver, and other aircraft subsystems to predict a 3--D flight path based upon a curve--fit extrapolation of the most recent position and velocity data received.
PAGE 47
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 6 Call--outs and excessive bank angle As defined in RTCA DO--161A, T2CAS produces call--outs and alerts for descent below a set of predefined altitudes and for excessive bank angle. (c) Terrain Display The T2CAS TAWS function provides two outputs to ARINC 708A compatible displays to provide terrain--related information to the crew through the weather radar or EFIS displays in order to enhance flight crew situational awareness.
PAGE 48
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Further breakdown of the TCAS and TAWS/RWS system configurations are detailed in the sections 1 and 2 that follow. (1) TCAS System Configuration The T2CAS unit’s TCAS function may be installed in several different configurations depending on the transponders used and the choice of antennas and displays. Some typical configurations are shown in Figure 1--5. Other combinations are feasible.
PAGE 49
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 1--5 (Sheet 1). Typical System Configurations 34-43-20 1--15 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 50
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 1--5 (Sheet 2). Typical System Configurations 1--16 15 Feb 2003 34-43-20 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 51
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 1--6. T2CAS System Aircraft Interface 34-43-20 1--17 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 52
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Blank Page 1--18 15 Feb 2003 34-43-20 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 53
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 1--7. TCAS Function System Block Diagram 34-43-20 1--19/(1--20 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 54
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 4. Component Descriptions A. TT--950/951/952 T2CAS Computer Unit The T2CAS Computer Unit (CU) is the heart of the T2CAS system consisting of an existing TCAS 2000 LRU with a TAWS/Reactive Windshear function implemented on a separate circuit card assembly (CCA). The TAWS/RWS function uses a processor and I/O circuitry that is independent from the TCAS function’s processor and I/O.
PAGE 55
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 1--8. TT--950/TT--952 T2CAS Computer Unit (TT--951 Similar) 1--22 15 Feb 2003 34-43-20 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 56
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Table 1--6. TT--950/951/952 T2CAS Computer Unit Leading Particulars Item Specification Dimensions (maximum): • Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.64 in. (194.0 mm) • Width (TT--950/TT--952) . . . . . . . . . . . . . . . . . . . . . . . . 7.52 in. (191.0 mm) • Width (TT--951) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.90 in. (124.5 mm) • Length . . . . . . . .
PAGE 57
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Table 1--6. TT--950/951/952 T2CAS Computer Unit Leading Particulars (cont) Item Specification -- Fan Off (controlled by temperature sensor) . . . . . Temp sensor < +25 Deg C Mounting: • TT--950/TT--952 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ARINC 600 6--MCU Tray Assembly • TT--951 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 58
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Table 1--6. TT--950/951/952 T2CAS Computer Unit Leading Particulars (cont) Item Specification • Pulse Timing Characteristics: -- Pulse Rise Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.05 to 0.10 microseconds -- Pulse Fall Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.05 to 0.20 microseconds -- ATCRBS S1, P1, P3, P4 Duration . . . . . . . . . . . . 0.08 ± 0.
PAGE 59
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 (1) System Interfaces The T2CAS Computer Unit supports the external system interfaces that follow. Unless otherwise specified, the specifications apply to both the TT--950/TT--952 (6--MCU) and TT--951 (4--MCU) computers. All interfaces are per ARINC 735A.
PAGE 60
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 (b) TCAS System Interfaces 1 Mode S Transponder Interface The T2CAS computer contains two sets of ARINC 429 high speed buses for communication with two Mode S transponders. It uses ARINC 718A/735A communication protocol (2 inputs, 2 outputs). 2 Onboard Maintenance System Interface The TCAS function contains a set of ARINC 429 low speed buses for communication with an onboard maintenance system (1 input, 1 output).
PAGE 61
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 The RA Display No. 1 and No. 2 buses can be configured for a 429 Data Recorder function by grounding programming pin (RMP--11D). In this mode, the buses are configured for high speed operation. 5 Performance Management Bus Interface The TCAS function contains a low speed ARINC 429 bus input (RMP--6A, 6B) that is reserved for connection to a performance management system.
PAGE 62
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 10 Voice Audio Outputs The TCAS function contains two analog audio outputs that provide TCAS aural traffic advisories and resolution advisories. The 8--ohm output has the capability to supply up to 8 Watts RMS into a speaker. The 600--ohm output has the capability to supply up to 80 milliwatts RMS into an audio distribution system. 11 RS--232 Interface The TCAS function has an RS--232 input/output for connection to a personal computer.
PAGE 63
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 The T2CAS also contains an access port on the front of the unit that accepts a Type I Compact PC Flash card. The Compact PC card is commercially available and can hold up to 300 Megabytes of memory. The Compact PC card is electrically compatible with PCMCIA Flash cards and can be inserted in a PCMCIA card slot on a PC using an adapter, or a USB serial port with an adapter.
PAGE 64
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 5 Flight Data Recording There is currently no output to the Flight Data Recorder. 6 Voice Audio Outputs The TAWS/RWS function contains two analog audio outputs that provide TAWS/RWS aural terrain avoidance advisories and windshear advisories. The 8--Ohm output has the capability to supply up to 8 Watts RMS into a speaker. The 600--Ohm output has the capability to supply up to 80 milliwatts RMS into an audio distribution system.
PAGE 65
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 9 FMC Interface The TAWS/RWS function uses Ground Speed, True Track Angle, Flight Path Angle, Aircraft Weight, Latitude, Longitude and True Heading from an FMC system. TAWS/RWS can accept up to two Digital ARINC 429 inputs from an ARINC 702 Flight Management Computer system or other non--ARINC standard interfaces.
PAGE 66
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 13 Decision Height The TAWS/RWS function uses selected Decision Height and/or Minimum Descent Altitude for the generation of audio call--outs. TAWS/RWS can accept ARINC 429 inputs or a discrete input. 14 Decision Height/Minimum Descent Altitude Switch A Flight Deck switch can be used to select either Decision Height or Minimum Descent Altitude for audio call--out altitude determination.
PAGE 67
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 (5) Self--Test Function (a) TCAS and TAWS/RWS Maintenance Self--Test By momentarily pushing the TEST switch on the front panel of the T2CAS Computer Unit, maintenance personnel can display fault data for the current and preceding flight legs. When TEST is initially activated, all annunciators (pass/fail lamps on front of unit) are ON for a 3--second lamp test, then current fault data is displayed for 10 seconds.
PAGE 68
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 B. Airplane Personality Module Interface The Airplane Personality Module (APM) is defined in ARINC Report 607, Attachment 3 -see Figure 1--9. A serial digital interface between the T2CAS Computer and the APM allows the APM to be programmed with aircraft and system configurations during the initial installation of the T2CAS computer.
PAGE 69
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 The ACSS directional antenna has a small frontal area. The circular radome has a 3:1 elliptical leading edge and an extremely low profile height of only 0.806 inch. This yields excellent aerodynamic performance with a minimum possibility of icing, which could be a hazard for rear mounted engines. For T2CAS TCAS system installations, the top antenna must be a directional antenna.
PAGE 70
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 1--10. Directional Antenna 34-43-20 1--37/(1--38 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 71
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 D. GPS Antenna and Coax For T2CAS installations that include the optional internal GPS module, a compatible ARINC 743A active GPS antenna and coax interface shall be included in the T2CAS installation design. The antenna used for the GNSSA Receiver Module is required to meet the requirements of RTCA/DO--228, Change 1, and TSO--C144.
PAGE 72
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 1--11. Typical T2CAS GPS Antenna Coax Sub Kit Table 1--7. GPS Antenna Coax Kit Parts List Nomenclature or Description Item Number Number Required 1 TNC STRAIGHT PLUG See Note 2 2 ARINC SIZE 5 CONTACT See Note 1 3 TNC BULKHEAD JACK See Note 1 4 GPS COAX See Note See Note 5 CLAMP MS25281--R4 See Note 6 SCREW, HEX--HD, 10--32 X .
PAGE 73
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 E. Gables ATC/TCAS Dual Mode S Transponder Control Panel The Gables ATC/TCAS Mode S control panel is used to independently control two Mode S transponders, and to interface with a Mode S installation with TCAS capabilities. The control panel contains two isolated electronic modules each dedicated to a given transponder. Each module derives its input ATC code data from two dual concentric knobs.
PAGE 74
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Table 1--8. Gables G7130 Series Control Panel Leading Particulars Item Specification Dimensions (maximum): • Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.25 in. (57.2 mm) • Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.75 in. (146.1 mm) • Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.80 in. (147.3 mm) Weight (maximum) .
PAGE 75
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 (b) ATC Code Selection The ATC four digit code is selected with two dual concentric sets of knobs. Each knob is dedicated to a single liquid crystal display (LCD) digit on the LCD code display. The two smaller knobs control the inner digits of the LCD (tens and hundreds) while the two larger knobs control the outer most digits (units and thousands).
PAGE 76
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 (h) IDENT Key The IDENT key is a momentary button. When pushed, the IDENT key causes an ATCRBS reply or Mode S UF--4 and UF--5 replies to contain a special pulse identifier pulse (SPI) as an identifier to be transmitted to ground controllers in accordance with ARINC 718 Draft 5 of Supplement 4. (i) Flight Level Button The FL button is a momentary button used to select between relative and absolute altitude information.
PAGE 77
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 1--13. Typical VSI/TRA Display Formats 34-43-20 1--45 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 78
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Table 1--9. VSI/TRA Leading Particulars Item Specification Dimensions (maximum): • Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.26 in. (82.8 mm) • Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.26 in. (82.8 mm) • Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5 in. (190.0 mm) Weight (maximum) . . . . . . . . .
PAGE 79
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 The VSI/TRA also displays symbology corresponding to traffic in the vicinity of the aircraft. Threat information is received from the TCAS function on a dedicated high--speed ARINC 429 bus. The display uses the bearing, altitude, and range data for each threat to provide an indication of the proximity of the threat.
PAGE 80
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 1--14. VSI/TRA Interface Diagram (41--Pin) 1--48 15 Feb 2003 34-43-20 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 81
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 H. TAWS Terrain Hazard Display T2CAS installations require at least one TAWS terrain hazard display. ARINC 708A and ARINC 429 WXR display and EFIS interfaces are supported. Figure 1--15 shows a typical single ARINC 708A terrain hazard display interface. T2CAS’ dual--independent terrain hazard display I/O supports dual ARINC 708A and dual ARINC 429 terrain hazard display systems.
PAGE 82
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 1--15. Typical T2CAS Single Terrain Hazard Display Interface 1--50 15 Feb 2003 34-43-20 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 83
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 I. XS--950 Mode S Data Link Transponder The XS--950 Data Link Transponder provides surveillance functions to ground based and airborne interrogators, and communication functions to various onboard systems. The transponder contains data link functions that allow it to function as part of the Aircraft Telecommunications Network (ATN).
PAGE 84
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Table 1--10. XS--950 Data Link Transponder Leading Particulars Item Specification Dimensions (maximum): • Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.6 in. (192 mm) • Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.9 in. (124.5 mm) • Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15.2 in. (386 mm) Weight . . . . . . . . . . . .
PAGE 85
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Table 1--10. XS--950 Data Link Transponder Leading Particulars(cont) Item Specification • Vibration [CLMY]: -- Category C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fixed wing turbojet engine, fuselage mounting -- Category L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fixed wing reciprocating and turboprop multi and single engine over 12,500 pounds, fuselage mounting -- Category M . . . . . . . . . .
PAGE 86
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Table 1--10. XS--950 Data Link Transponder Leading Particulars(cont) Item Specification Airborne Data Link Processor (ADLP) Interface: • Circuit Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . COMM--A/B messages have an ARINC 429 input and output bus. COMM--C/D messages have an ARINC 429 input and output bus. Both sets of busses are 100 K bits/s (high--speed ARINC). • Bus Protocol . . . . . . . . . . . . . . . . . . . .
PAGE 87
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Table 1--10. XS--950 Data Link Transponder Leading Particulars(cont) Item Specification Onboard Software Uploading / Maintenance Log Downloading: • Circuit Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . Portable Data Loader thru ARINC 615 Front Panel Connector ARINC 429 input and output bus (100 K bits/s) PDL Link A discrete input RS--232 input/output bus (38.
PAGE 88
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 J. RCZ--852 Diversity Mode S Transponder The RCZ--852 Diversity Mode S Transponder is an airborne transponder designed to perform both conventional and advanced air traffic control (ATC) functions. It receives coded radar signals from ATC ground stations and other aircraft and transmits coded replies. The replies contain information such as aircraft identity, altitude, and data communication messages.
PAGE 89
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Table 1--11. RCZ--852 Diversity Mode S Transponder Leading Particulars Item Specification Dimensions (maximum): • Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.38 in. (86 mm) • Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.10 in. (104 mm) • Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.1 in. (358 mm) Weight . . . . . . . . .
PAGE 90
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Table 1--11. RCZ--852 Diversity Mode S Transponder Leading Particulars (cont) Item Specification Operating Modes: • STANDBY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ready but not replying. • ATC ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Transponder Modes A and S. No altitude reporting. • ATC ALT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 91
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Table 1--11. RCZ--852 Diversity Mode S Transponder Leading Particulars (cont) Item Specification Altimeter Interface: • Digital Air Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ARINC 429 or 575 data format. 12.5 K bits/s (low--speed ARINC). Two altimeter inputs (left and right altimeters). • IAC Air Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 92
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 5. System Operation A. TCAS Operation The principal modes of operation and display features of the TCAS function are discussed in the paragraphs that follow. In--flight procedures with display examples are contained in the T2CAS Pilot’s Manual, ACSS Publication No. 8000264--001. (1) Operational Modes The TCAS function can operate in several different modes, depending on control panel selection. Several control panels are available.
PAGE 93
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 3 Test Mode Pushing the TEST button on the control panel starts a self--test program which verifies proper operation of the TA and RA displays and of the aural advisories on the audio system. The test mode does not affect normal TCAS operation, provided the selected transponder remains in normal operation during the test cycle. Should a TA or RA occur during the test sequence, the test aborts, and the advisory is announced and displayed.
PAGE 94
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 (2) Display Symbology The TCAS modes use color--coded symbols and data tags to map air traffic and locate threat aircraft on the VSI/TRA display. Four traffic symbols are used: solid circle, solid square, solid diamond, and hollow diamond. See Figure 1--18 for examples. A different color is assigned to each symbol type, as listed in Table 1--12. Table 1--12.
PAGE 95
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Intruder aircraft entering the caution area, 20 to 48 seconds from the TCAS 2000 collision area are represented as a solid amber circle. This type of traffic results in a traffic advisory. 2 Resolution Advisory Intruder aircraft entering the warning area, 15 to 35 seconds from the TCAS 2000 collision area are represented as a solid red square. This type of traffic results in a resolution advisory. 3 Proximate Traffic Aircraft within 6.
PAGE 96
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 (d) VSI Scale Overlays During a resolution advisory, red and green bands overlay the VSI scale. The red band indicates what vertical speed range is to be avoided by the pilot (prohibited vertical speed). The green band indicates the vertical speed the pilot is to attain to achieve safe separation from a threat aircraft (recommended vertical speed).
PAGE 97
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 3 During T2CAS computer unit self--test, an aural advisory confirms proper operation of the aural advisory system by annunciating the message “TCAS TEST”. The aural advisory system annunciates the pass/fail status of any monitored functions with the messages “TCAS TEST PASS” and “TCAS TEST FAIL”, respectively. 4 An aural advisory tone will precede each aural advisory when the audio tone enable program pin has been activated.
PAGE 98
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 3 “MONITOR VERTICAL SPEED”: Verify that vertical speed is out of the illuminated red VSI arc, or comply with another suitable indicator. Additional T2CAS CU messages are “MAINTAIN VERTICAL SPEED, MAINTAIN: MAINTAIN VERTICAL SPEED, CROSSING MAINTAIN”: or “ADJUST VERTICAL SPEED, ADJUST”. Safe separation is based upon maintaining the current vertical speed. 4 “ADJUST VERTICAL SPEED, ADJUST”: Reduce climb or descent rate.
PAGE 99
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 4 “DESCEND, DESCEND NOW!—DESCEND, DESCEND NOW!”: (Received after a “CLIMB” resolution advisory) Indicates a reversal in sense is required to achieve safe vertical separation from a maneuvering intruder. (4) Operating Procedures Basic TCAS operating procedures on the ground include pre--flight test, TCAS activation before takeoff, and TCAS deactivation after landing. In--flight procedures are contained in the pilot’s manual.
PAGE 100
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 • Set TCAS/XPDR mode selector to TA/RA • Set TA/DSPLY to AUTO • Set ALT/RPTG to 1 or 2. (c) TCAS Mode Deactivation After clearing the runway following landing, set the TCAS/XPDR mode selector to STBY to disable Mode S communication. Figure 1--18. TCAS ll Display Test Pattern B. TAWS/RWS Operation The principal modes of operation and display features of the TAWS/RWS function are discussed in the paragraphs that follow.
PAGE 101
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 1--19. Mode 1 -- Excessive Descent Rate Envelope (b) Mode 2: Excessive Closure Rate to Terrain When the CPA mode is inoperative, this mode provides, as defined in RTCA DO--161A, a reactive medium--term caution and a reactive short--term warning when the current flight path and the terrain ahead of the aircraft are closing at an excessive rate. Figure 1--20 shows Mode 2 -- Excessive Terrain Closure Rate Envelope. Figure 1--20.
PAGE 102
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 (c) Mode 3: Excessive Altitude Loss after Take--off This mode provides, as derived from RTCA DO--161A, an alert when there is a loss of altitude after take--off or during a missed approach. Figure 1--21 shows Mode 3 -- Loss of Altitude After Take Off Envelope. Figure 1--21.
PAGE 103
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 1--22. Mode 4 -- Unsafe Terrain Clearance Envelope (e) Mode 5: Excessive Glide Path Deviation T2CAS meets the requirement for Mode 5 alerts as defined in RTCA DO--161A. Mode 5 applies in the event of an excessive descent below the instrument glide path when making a front--course approach with the gear down. In a back--course landing configuration, mode 5 is automatically inhibited.
PAGE 104
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 (g) Excessive Bank Angle The T2CAS TAWS function produces call--outs and alerts for descent below a set of predefined altitudes and for excessive bank angle. Figure 1--24 shows Excessive Bank Angle Envelope. Figure 1--24.
PAGE 105
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 (2) RWS Operational Mode Whenever wind factors cause aircraft performance to decrease to a predetermined level, an audio warning is sounded, indicating to the crew that the aircraft net performance capability is deteriorating and rapidly approaching a critical state.
PAGE 106
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 • Terrain Alert areas corresponding to the terrain that is causing a CPA caution or warning. Each of these features is explained in the following sub--sections. (a) Terrain Display Background The purpose of the Terrain Display Background is to provide overall situational awareness to the crew about the relative height of the terrain near the aircraft.
PAGE 107
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 A typical terrain background image is shown in Figure 1--27 Figure 1--27. Terrain Display Background (b) Alert Line Display The Terrain Hazard Display can also depict an Alert Line. The Alert Line is drawn at the points where a CPA caution will occur if the aircraft continues along it’s current vertical trajectory. When there are no CPA cautions or warnings active, T2CAS TAWS will determine if an alert line needs to be drawn.
PAGE 108
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 1--28. Alert Line (c) Display of Terrain Alerts When a CPA caution or warning occurs, the terrain that caused the alert will be displayed on the Terrain Hazard Display. Solid yellow is used for cautions, solid red is used for pull--up warnings, and black x’s on a solid red background are used for avoid terrain warnings.
PAGE 109
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 In Figure 1--30, the warning alarm is generated through the TAWS display by highlighting the hazardous area ahead of the aircraft in red and generating a red ”TERRAIN” message on the bottom right of the screen. An aural message is also played on the flight deck. Figure 1--30.
PAGE 110
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 1--31. Terrain Hazard Display Upon An Avoid Terrain Warning (4) TAWS/RWS Aural Messages Aural alerts can be generated for any of the cautions or warnings generated by the TAWS and RWS functions. The specific messages are selectable from a list of several options. Additionally, the T2CAS can be configured to play the voices in either a male voice or a female voice. The list of selectable aural alerts is shown in Table 1--13.
PAGE 111
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Table 1--13.
PAGE 112
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Table 1--13. TAWS/RWS Aural Alerts(cont) Condition Selectable Aural Alerts Windshear Warning “Windshear Windshear Windshear” or siren “Windshear Windshear Windshear” Callouts “Minimums Minimums” “Minimums” “Decision Height” “Unknown Decision Height” “Approaching Minimums” “Approaching Decision Height” “One thousand” “Five Hundred” 500 ft.
PAGE 113
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 (5) Operating Procedures Basic TAWS/RWS operating procedures on the ground include pre--flight test, TAWS/RWS activation before takeoff, and TAWS/RWS deactivation after landing. In--flight procedures are contained in the pilot’s manual. (a) Pre--Flight Test The Standard Self Test is performed by activating either the CMC self test or the self test discrete input (RTP--10E = GND).
PAGE 114
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 1--32. Standard Self--Test of TAWS/Windshear Functional Areas 1--82 15 Feb 2003 34-43-20 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 115
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 P T R N S L F T S T E X T E N D E D 2 2 3 3 5 5 6 6 P P A A ID--8000574 T S T H O L D T O V I E W N N 4 4 C C Figure 1--33. TAWS Display Test Pattern The T2CAS unit will display a multicolor test pattern on both the captain’s and first officer’s TAWS displays. Figure 1--33 shows a typical multicolor test pattern.
PAGE 116
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 • “DON’T SINK, DON’T SINK” • “TOO LOW, TERRAIN” • “TOO LOW, GEAR” • “TOO LOW, FLAPS” • “GLIDESLOPE” NOTE: “≈≈” designates a pair of varying tones from 400 to 800 Hz; where each tone is 0.3 seconds in duration, separated by 0.1 seconds, and at the end of the pair there is 0.1 seconds of silence. NOTE: The aural annunciations listed above will depend on the Operator Selectable Options chosen during installation of the T2CAS unit.
PAGE 117
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 (b) TAWS/RWS Mode Activation The TAWS/RWS is activated upon Aircraft Power Up and becomes available when parameters needed for normal operation of the TAWS/RWS functions are available. (c) TAWS/RWS Mode Deactivation The TAWS/RWS becomes deactivated upon Aircraft Power Down.
PAGE 118
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Blank Page 1--86 15 Feb 2003 34-43-20 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 119
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 MECHANICAL INSTALLATION 1. General This section contains information on how and where to mount each component of the T2CAS system. For new installations, plan installation in two stages. First, determine the location of the LRUs in the aircraft. Next, determine the length of RF and electrical interconnections for selected locations. NOTE: The RT--95X CFDS/CMC capability has not been demonstrated as part of an installed system.
PAGE 120
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 The TT--950/952 T2CAS Computer Unit is mounted in an ARINC 600 6--MCU mounting tray. The computer unit requires external cooling air in accordance with ARINC 600 or ARINC 404 to maintain the highest possible Mean Time Between Failures (MTBF). In those installations where this is not available, a mounting tray with an integral fan is required. The TT--951 T2CAS computer unit is mounted in an ARINC 600 4--MCU mounting tray.
PAGE 121
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 The directional antenna must be separated by a least 30--inches from any other L--band antenna, and 60--inches is preferred. If a bottom directional antenna is used, it should be the most forward antenna on the fuselage bottom with tilt angle allowances the same as for a top mounted antenna. An O--ring (included with the directional antenna) is required to be installed between the directional antenna and the aircraft fuselage.
PAGE 122
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 This is summarized with several examples in the Table 2--1 below, assuming 4 unique installations. Table 2--1. Coax Cable/Connector Loss Assumed Antenna Gain (dB) Minimum Cable And Connector Loss(dB) Maximum Cable And Connector Loss(dB) Cable Length (feet) Recommended Cable Type (and loss) (Cable Length (feet)x Loss) + Connector Loss= Cable and Connector Loss 30 30 -- 29 = 1 30 -- 12.5 = 16.5 10 311601 (0.11 db/ft) (0.
PAGE 123
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 E. TCAS Control Panel Provisions Mechanical installation data for a typical Gables GXXXX Series ATC/TCAS control panel is shown in Figure 2--14. It should be noted that various other types of controllers (Radio Management Units or EFIS Display Controllers) can be used to control the TCAS display. If a controller other than a ACSS ATC/TCAS control panel is used, refer to that particular unit’s manual for installation data. F.
PAGE 124
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 TERR TERR TERR N/A GPWS N/A TERR TERR TERR N/A GPWS N/A CAPTAIN’S AND FIRST OFFICER’S GLARESHIELD SWITCH ANNUNCIATORS. (ANNUNCIATOR TEST ON) TERR INHIBIT TERR ON WXR FLAP OVRD GS OVRD STEEP APPR ON ON ON UP NORM DOWN CMPST ANNUNCIATOR TEST ON. (WHITE DASHES ARE HIDDEN LINES SHOWING EXISTING 3 ATI CUTOUT) ID--8000576 CAPTAIN’S AND FIRST OFFICER’S GLARESHIELD SWITCH ANNUNCIATORS. (NORMAL FLIGHT CONDITION) Figure 2--1.
PAGE 125
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--2. Typical Five--Button B737/757/767 Annunciator Switch Panels 34-43-20 2--7 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 126
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--3. Typical Single Terrain Hazard Display Annunciator Switch Panel I. Transponder Provisions This paragraph contains the mechanical installation data for the ACSS Mode S Data Link Transponder, Part No. 7517800--XXYYY and ACSS Diversity Mode S Transponder, Part No. 7510700--850. It also contains provisions for installing the ATC transponder antennas.
PAGE 127
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 (3) ATC Transponder Antenna Provisions When installing transponder antennas, a TSO’d antenna should be selected. The antenna must be vertically polarized and operate in the frequency range of 960 to 1220 MHz. Antenna impedance must be 50 ohms. Selection of a grounded or lightning protected type antenna is required to pass the transponder bite continuity detection circuitry, if enabled.
PAGE 128
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Blank Page 2--10 15 Feb 2003 34-43-20 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 129
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--4. GPS Antenna Outline and Installation Drawing 34-43-20 2--11/(2--12 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 130
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--5 (Sheet 1). APM Outline and Installation Drawings 34-43-20 2--13/(2--14 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 131
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--5 (Sheet 2). APM Outline and Installation Drawings 34-43-20 2--15/(2--16 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 132
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--6 (Sheet 1). TT--950/952 T2CAS Computer Unit Outline and Installation Drawing 34-43-20 2--17/(2--18 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 133
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--6 (Sheet 2). TT--950/952 T2CAS Computer Unit Outline and Installation Drawing 34-43-20 2--19/(2--20 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 134
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--6 (Sheet 3). TT--950/952 T2CAS Computer Unit Outline and Installation Drawing 34-43-20 2--21/(2--22 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 135
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--6 (Sheet 4). TT--950/952 T2CAS Computer Unit Outline and Installation Drawing 34-43-20 2--23/(2--24 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 136
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--7 (Sheet 1). TT--951 T2CAS Computer Unit Outline and Installation Diagram 34-43-20 2--25/(2--26 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 137
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--7 (Sheet 2). TT--951 T2CAS Computer Unit Outline and Installation Diagram 34-43-20 2--27/(2--28 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 138
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--8 (Sheet 1). XS--950 Data Link Transponder Outline and Installation Diagram 34-43-20 2--29/(2--30 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 139
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--8 (Sheet 2). XS--950 Data Link Transponder Outline and Installation Diagram 34-43-20 2--31/(2--32 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 140
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--9 (Sheet 1). RCZ--852 Mode S Transponder Outline and Installation Diagram 34-43-20 2--33/(2--34 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 141
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--9 (Sheet 2). RCZ--852 Mode S Transponder Outline and Installation Diagram 34-43-20 2--35/(2--36 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 142
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--9 (Sheet 3). RCZ--852 Mode S Transponder Outline and Installation Diagram 34-43-20 2--37/(2--38 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 143
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--10. TCAS Directional and Omnidirectional Antenna Locations 34-43-20 2--39 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 144
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--11. Directional Antenna Angular Orientation 2--40 15 Feb 2003 34-43-20 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 145
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--12 (Sheet 1). Directional Antenna Outline and Installation Diagram 34-43-20 2--41/(2--42 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 146
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--12 (Sheet 2). Directional Antenna Outline and Installation Diagram 34-43-20 2--43/(2--44 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 147
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--12 (Sheet 3). Directional Antenna Outline and Installation Diagram 34-43-20 2--45/(2--46 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 148
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--12 (Sheet 4). Directional Antenna Outline and Installation Diagram 34-43-20 2--47/(2--48 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 149
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--12 (Sheet 5). Directional Antenna Outline and Installation Diagram 34-43-20 2--49/(2--50 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
PAGE 150
SYSTEM DESCRIPTION AND INSTALLATION MANUAL T2CAS / Part No. 9000000 Figure 2--13 (Sheet 1). Directional Antenna Baseplate Outline and Installation Diagram 34-43-20 2--51/(2--52 blank) 15 Feb 2003 Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.