Specifications

SECTION III
INSTRUMENTATION AND AVIONICS
MODEL 560
AIRBORNE FLIGHT INFORMATION SYSTEM (AFIS) (Optional)
The Global Airborne Flight Information System (AFIS) interfaces the flight planning and performance
management functions of the standard GNS-XL Flight Management System with Global Data Center
Computers, by means of the Aircraft Communications Addressing and Reporting System (ACARS). ACARS
provides the computer data link between the airplane and the Global Data Center, by which transfer of
digital data concerning flight plans, weather, and message traffic is possible.
The Model 560 Encore AFIS installation consists of a Data Management Unit (DMU), a configuration
module, an optional data transfer unit (DTU), and an antenna. The Global Data Center and ACARS, with its
VHF/ground telephone system interface, make up the ground portion of the system. The global data
system provides the services of flight planning, aviation, weather, and a flight related message forwarding,
thru its "mainframe" computers which accept and process digital data, and provide the requested
information on a real time basis.
For detailed operating information, consult Section Seven of the Global Wulfsberg GNS-XLS Flight
Management System Operator’s Manual (Revision 2), Report Number 006-08845-0000, issued 2 January,
1996 or later revision. This section constitutes the Airborne Flight Information System and Satellite Data
Communications System Supplement for the AFIS system.
Figure 3-36. GNS-XL Control Display Unit (CDU)
I 3-74 Configuration AA 56OMB-01