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* Throttle rate command
* Throttle servo motor tachometer
* Throttle torque
* Motor power from ASM
* Auto Throttle disconnect
* ARM
* GA
* MCP speed
* A/T limit
* FMC speed
* N1
* Retard
* A/T engage
* Minimum speed.
The EVSC sends these parameters to the FDAU:
* CN1 tracked vibration
* CN2 tracked vibration
* TN1 tracked vibration
* TN2 tracked vibration
* Fan balance angle
* Fan balance mass.
The FMC(s) send these parameters to the FDAU:
FDRS - FDAU DIGITAL INTERFACE
EFFECTIVITY
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* Distance to go
* Origin character
* Destination character
* Destination ETA hours
* Destination ETA minutes
* Gross weight
* Engine out engaged
* Flight number
* NDB effectivity day
* NDB effectivity month
* NDB effectivity year
* PMC on
* FMC valid
* N1 limit mode
* Target N1
* VREF speed
* V2 speed
* VR speed
* V1 speed
* Present position latitude
* Present position longitude
* Track angle true
* Wind speed
* Wind direction true
* Drift angle
* Flight path angle.
CDU Inputs
The CDUs can control the operation of the ACMS portion of the
FDAU. The CDUs can call up reports and control the optional
printer. You can also verify the ACMS software part numbers on
the CDU.
DEU Inputs
Each DEU sends engine information to the FDAU on two data
buses.
DEU Outputs
The FDAU sends flight surface position information to the DEUs.
FDRS - FDAU DIGITAL INTERFACE
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General
These LRUs send data to and receive data from the data
management unit (DMU) master controller in the FDAU:
* Printer - The printer prints reports and sends status to the
FDAU on an output data bus.
* Control display units (CDUs) - The CDUs are the interface to
the FDAU.
* Aircraft communication addressing and reporting system
(ACARS) - ACARS sends requests to the FDAU for data and
sends the data to the ground.
FDRS - FDAU ACMS INTERFACE
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FDRS - FDAU ACMS INTERFACE
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General
Analog inputs to the FDAU come from these sources:
* Accelerometer
* Sensors
* Transducers
* Transmitters.
These inputs go to an analog interface in the FDAU. The analog
interface changes analog signals to digital data. The FDAU
processes the digital data.
Accelerometer
The accelerometer supplies these three analog outputs to the
FDAU:
* Vertical acceleration
* Lateral acceleration
* Longitudinal acceleration.
The FDAU gives 28v dc to the accelerometer for power.
Sensors
Five sensors give inputs to the analog interface in the FDAU.
The stabilizer position sensor gives pitch trim position to the
FDAU.
The spoiler position sensor gives these inputs to the FDAU:
* Spoiler 3 position
* Spoiler 10 position.
The control wheel position sensor gives these inputs to the
FDAU:
* Capt control wheel position
* F/O control wheel position.
The control column position sensor gives these inputs to the
FDAU:
* Capt control column position
　
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