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interface in the FDAU
* FDAU - Software goes from the data loader to the mandatory
interface in the FDAU.
FDAU
The FDAU has these sections:
* ACMS interface
* Mandatory interface.
FDRS - DATA LOADER INTERFACE
EFFECTIVITY
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The ACMS interface sends ACMS data through the data loader
control panel to the data loader plug. This data goes to the
portable data loader disk when the airplane is on the ground
and the data loader is connected to the plug.
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The ACMS interface sends ACMS data through the data loader
control panel to the airborne data loader. This data goes to the
airborne data loader disk when the airplane is on the ground.
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Software goes to the ACMS or mandatory interface on the data
output bus. A discrete from the data loader control panel tells
the FDAU where to send the software. While the software is
loading, the FDAU sends handshake signals to the data loader.
These signals give the data loader the status of the procedure.
Flight Management Computer
The data loader control panel sends information from the ACMS
or the mandatory processor in the FDAU to the flight
management computer (FMC). The ACMS and mandatory
processors send the software part number to the FMC.
The FMC shows the software part number on the control display
unit (CDU). To see the software part number on the CDU you
must do these things:
* Select the system on the data loader control panel
* Select the SEL CONFIG (select configuration) prompt on the
INIT/REF (initialization reference) INDEX page on the CDU.
FDRS - DATA LOADER INTERFACE
EFFECTIVITY
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FDRS - DATA LOADER INTERFACE
EFFECTIVITY
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FDRS - DATA LOADER INTERFACE
EFFECTIVITY
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FDRS - DATA LOADER INTERFACE
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General
These line replaceable units (LRUs) send data to the FDAU in
ARINC 429 digital format:
* Distance measuring equipment (DME) interrogators (1 and 2)
* Instrument landing system (ILS)/Multi-mode receivers
* Very high frequency omni range (VOR)/marker beacon
receivers
* Ground proximity warning computer (GPWC)
* Radio altimeter transceivers
* Traffic alert and collision avoidance system (TCAS)
computer
* Air data inertial reference unit (ADIRU)
* Clock(s)
* Display electronic units (DEUs)
* Auxiliary power unit (APU) electronic control unit (ECU)
* Stall management yaw dampers
* Flight control computers (FCCs)
* Auto throttle computer
* Engine vibration signal conditioner (EVSC)
* Flight management computers (FMCs)
* FMC control display units (CDU)
* Flap slat electronics unit (FSEU)
Digital Interface
The FDAU gets digital data from many different airplane
systems. The mandatory data goes to the FDR through the
FDAU. The data that each operator records in the FDR is
dependant on their aviation authority.
The DME 1 and 2 interrogators send these parameters to the
FDAU:
* DME distance
* DME failure
* Antenna failure
* DME display discrete.
The ILS/MMR(s) send these parameters to the FDAU:
* Frequency
* Mode
* Glideslope deviation
* Localizer deviation
* Glideslope receiver failure
* Localizer receiver failure
* Glideslope antenna failure
* localizer antenna failure
* Receiver failure.
The VOR/marker beacon 1 and 2 receivers send these data to
the FDAU:
* VOR frequency
* VOR failure
* MB failure
* 3000 Hz marker
　
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