Today’s aircraft increasingly rely on digital technology and complex electronic systems, not just for instrumentation, navigation, and communications, but even for flight controls, system monitoring, maintenance planning, and more and more. Fiber optics and fly-by-wire is no longer the exception, but the rule. It is no longer limited to military, but now the basis of private and commercial aircraft both large and small. This module presents the B2 or CertTEC rated avionics technician with what he or she needs to know for both a understanding of these systems and the ability to work around them in an efficient and safe manner.
A more basic version of this book, Module 5/B1 is also available from Aircraft Technical Book Company which covers these topics to the more limited depth required for the B1 mechanical technician and or engineer.
5.1 Electronic Instrument Systems
Typical systems arrangement and cockpit layout of electronic instrument systems.
5.2 Numbering Systems
Binary, octal, and hexadecimal numbering systems and conversions.
5.3 Data Conversion
Analogue and digital data; Operation and application of analogue/digital converters, inputs and outputs and various limitations.
5.4 Data Buses
Operation of data buses in aircraft systems including knowledge of ARINC, Ethernet and other specifications.
5.5 Logic Circuits
Identification of common logic gate symbols, tables, and equivalent circuits as used in aircraft systems; schematic diagrams, and logic diagrams.
5.6 Basic Computer Science
Computer terminology, operation, layout, and interface in a micro-computer and associated bus systems; single and multi address instruction words; memory terms and devices; data storage systems
functions and operation of a microprocessor including control and processing, register, arithmetic logic elements
5.8 Integrated Circuits.
operation of encoders and decoders, medium, large, and very large scale integration
operation, application and identification in logic diagrams of multiplexers and demultiplexers
5.10 Fiber Optics
Advantages and disadvantages; Fiber optic data bus; terminations; couplers, control terminals, remote terminals; application in aircraft systems.
5.11 Electronic Displays
Operation of common types used in modern aircraft including cathode ray tubes (CRT), light emitting diodes (LED), and liquid crystal displays (LCD).
5.12 Electrostatic Sensitive Devices
Handling of sensitive components; Awareness of risks and personnel anti-static protection devices
5.13 Software Management Control
restrictions, airworthiness requirements and effects of unapproved changes to software programs.
5.14 Electromagnetic Environment
EMC Electromagnetic compatibility; EMI Electromagnetic Interference; HIRF High Intensity Radiated Field; Lightning protection
5.15 Electronic Digital Aircraft Systems
Arrangement of systems and associated BITE (built in test equipment)including:
ACARS-ARINC Communication, addressing and reporting systems
EICAS Engine indication and crew alerting system
FBW Fly by wire
FMS Flight management systems
IRS Inertial reference system
ECAM electronic centralized aircraft monitoring
EFIS Electronic flight instrument system
GPS Global positioning system
TCAS Traffic alert collision avoidance system
Integrated modular avionics
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