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Note 2: See the Environmental Qualification Form for details on surge rating and minimum/maximum

operating voltages.

7 Environmental Qualifications

Reference the Environmental Qualification Form in Requiem

Figure XXX shows the electrical top level design of the GIA 6300. The GIA 6300 consists of 9 separate

circuit boards and the GPS module. External interfaces are passed through the IO Board to the Main A,

Main B, COM Digital, NAV, and Audio boards.

GPS

COM RF

Main A and Main B in the GIA6300 function as two independent units, allowing for separation and

redundancy in each GIA. Both GIA 1 and GIA 2 are connected to the sensors, but in each GIA, Main A

and Main B can be connected to a different set of sensors (i.e. Main A is connected to all primary

sensors and Main B is connected to all redundant sensors). Data is shared between the two main

boards through the inter-processor communication.

The COM Digital, NAV, and the Audio board each connect to both Main A and B so that there is

redundant communication between these components and the rest of the system. It is possible to wire

the aircraft such that a total failure of either Main A or Main B cannot cause a total loss of COM, NAV, or

Audio functionality. In the event of a single Main Board failure, the second main board would still be

capable of tuning the COM, collecting navigation data, and processing autopilot and flight director

functionality (as examples).

190-01561-00

Draft1

Main A

COM Digital

GIA6300 EQF.

Main B

Audio

IO Board

NAV

Glideslope

GIA 6300 Installation Manual

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