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HONEYWELL Aerospace Electronic Systems Page 27
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Figure 10 FIDB Architecture
The FIDB defines the same name for a given aircraft parameter (i.e., Air_Speed) regardless of aircraft type.
In that way, the HGI and AMI can refer to Air_Speed without requiring any knowledge of where that data
originates (i.e., which bus, which device, etc.). When an AMI or HGI references the data (Air_Speed), the
aircraft type from the APM is used to select the correct data for the given aircraft type. In this manner, a
single HGI and AMI can be used across a fleet of aircraft independent of aircraft type.
A FIDB entry fully defines a single aircraft parameter including physical CMU port, bus, data source, data
format, resolution, units, scale, offset and data type.
4.2 GBST
The Ground Based Software Tool is the single windows-based PC tool that is used to generate AMIs (by the
customer) and HGIs (by Honeywell). The FIDB is an input to the GBST and the output is a diskette
containing a HGI or AMI that can be data loaded into the Mark III CMU (see Figure 11).
737-300
737-400
737-500
A319
ERJ-145
GEX
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•
•
•
•
•
•
•
•
Mini-FIDBs Master FIDB
Customer FIDB
(same for all a/c
in fleet)
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•
•
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Customer Aircraft Types:
737-400
737-500
A319
ERJ-145
AMI/HGI
(same for all
a/c in fleet)
Aircraft
Type:
ERJ-145
APM
(specific to a/c
type &
configuration)