30 Questions
What is the primary function of the Power Supply in the MAU?
To translate aircraft power to backplane conditioned power
What is the role of the Network Interface Controller (NIC) in the MAU?
To manage communication between MAU boards
What is the purpose of the User Modules in the MAU?
To perform aircraft control and monitoring functions
What is the function of the Digital Engine Operating System (DEOS) in the MAU?
To perform aircraft control and monitoring functions
What is the purpose of the Custom and Generic I/O in the MAU?
To interface with aircraft systems and sensors
What is the role of the Network Interface Controller (NIC) in terms of the bus systems?
To interface between internal backplane bus and external bus systems
What is the primary function of the Backplane Interface Controller (BIC) in the MAU?
To provide a buffer for data transmission between the NIC and client modules
What type of data is stored in the Aircraft Personality Modules (APMs)?
System identification data, options data, system settings data, and rigging data
What is the purpose of the software firewalls in the MAU?
To protect the MAU from malicious data coming from other applications
What is the function of the ASCB coupler in the MAU?
To connect the ASCB to other data buses
What type of modules can connect to the backplane bus through the BIC?
Hybrid modules, processor, Input/Output (I/O), and memory modules
What is the primary function of the NIC in the MAU?
To transmit and receive ASCB and LAN data
What is the primary function of the ASCB terminators in an aircraft?
To absorb signals and prevent reflection
What is the primary purpose of the Local Area Network (LAN) in an aircraft?
To provide an additional communication path for development and maintenance
What protocol is used by the Local Area Network (LAN) in an aircraft?
TCP/IP
What type of cable is used in the Local Area Network (LAN) in an aircraft?
Thin coaxial cable
What is the operating frequency of the Controller Area Network (CAN) bus?
500 kHz
What is the primary function of the Network Interface Card (NIC) in an aircraft?
To control data transmission on the LAN bus
What type of communication is used in a CAN bus?
Synchronous
How do nodes decide whether to accept a transmitted frame in a CAN bus?
Based on the arbitration ID of the frame
What happens when multiple nodes try to transmit a message onto the CAN bus at the same time?
The node with the highest arbitration ID gets bus access
What is the purpose of the arbitration ID in a CAN frame?
To label the frame for identification
What is a feature of the CAN specification?
Error checking on each frame
How do nodes access the CAN bus?
By checking for bus availability
What happens to frames with errors in a network?
They are disregarded by all nodes in the network.
What is the purpose of the autopilot control systems in the Flight Guidance System?
To operate in parallel with normal pilot commands when engaged.
What is the role of the Actuator Input-Output Processor (AIOP) modules?
They perform computations and data processing for the autopilot and Yaw Damper functions.
What can happen if too many errors are detected in a network?
Individual nodes can stop transmitting errors or disconnect from the network.
What is the relationship between the autopilot control systems and the pilot's commands?
The autopilot control systems operate in parallel with the pilot's commands when engaged.
What is the function of the clutched electro-mechanical servo assemblies in the Flight Guidance System?
They operate in parallel with the normal pilot commands when engaged.
Learn about the key components of an aircraft's system architecture, including power supply, network interface controllers, and user modules. Understand how they interact and support various aircraft functions.
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