Page 1-2 G300 Installation Manual –Installation OverviewRevision A 190-00921-011.3 System OverviewThe G300 is an advanced technology avionics suite designed to integrate pilot/aircraft interaction into onecentral system. The system combines primary flight instrumentation, aircraft systems instrumentation,and navigational information, all displayed on one or two color screens. The G300 system is composedof several sub-units or Line Replaceable Units (LRUs). LRUs have a modular design and can be installeddirectly behind the instrument panel or in a separate avionics bay if desired. This design greatly easestroubleshooting and maintenance of the G300 system. A failure or problem can be isolated to a particularLRU, which can be replaced quickly and easily. Each LRU has a particular function, or set of functions,that contributes to the system’s operation. For additional information on LRU functions, see theapplicable section of this manual.1.3.1 System ArchitectureFigure 1-1 illustrates the communication paths that are in place in a typical G300 installation.GSU 73GDU 370(PFD)GMU 44GTP 59GTX 327SL 40RS-232CANRS-232RS-485PitotStatic(not included inthe G300 system)GOPTIONALDU 375(MFD)(not included inthe G300 system)Figure 1-1. G300 Interconnect Summary
