Integrated Modular Avionics Quiz & Flashcards for Embraer 170/190

What is the primary function of the Bus Interface Controller (BIC) in the MAU board?

To program system identification data in the Aircraft Personality Modules
To transmit and receive ASCB and LAN data
To protect the MAUs from malicious data with software firewalls
To connect client modules to the backplane bus through a dual-port RAM (correct)

What type of memory is used in the Bus Interface Controller (BIC) frame buffer?

Sequential Access Memory
Cache Memory
Random Access Memory (correct)
Read-Only Memory

What is the purpose of the Aircraft Personality Modules (APMs) in the NIC modules?

To manage the power supply to the MAU
To store system identification data, options data, system settings data, and rigging data (correct)
To control the flow of data between the NIC and client modules
To provide a secure boot mechanism for the MAU

What is the primary function of the software firewalls in the MAU?

To protect the MAU from malicious data originating from other applications (C) Signup and view all the answers

What is the primary purpose of the ADCN implementing a redundant network with both network A and B?

To ensure that a data path is still established in the event of a switch failure (D) Signup and view all the answers

What type of data bus is used in the MAU for data processing and operations?

Avionics Standard-Communication Bus (ASCB) and Local Area Network (LAN) bus (B) Signup and view all the answers

What is the function of the ASCB coupler in the MAU?

To terminate the ASCB data bus (C) Signup and view all the answers

What happens when a subscriber receives two identical data frames from network A and B?

The subscriber rejects one of the frames and uses the other (B) Signup and view all the answers

What is the function of the auto-switching system in the ADCN network?

To automatically switch to a redundant network in the event of a failure (A) Signup and view all the answers

What is the purpose of the Avionics Standard-Communication Bus (ASCB) in AIOP modules?

To collect data from avionic and flight control systems (C) Signup and view all the answers

What type of connector is used in the core processing input/output modules?

ARINC 600 connector (B) Signup and view all the answers

What is the function of the Linear Variable Differential Transformers (LVDTs)?

To provide analogue feedback to the Primary Actuator Control Electronics (P-ACE) System (A) Signup and view all the answers

What is the role of the Flight Control Module (FCM) in the autopilot system?

To receive yaw damper and turn coordination signals from the FGCS (D) Signup and view all the answers

What is the primary benefit of the ADCN network's redundant design?

Improved network reliability and fault tolerance (C) Signup and view all the answers

What is the purpose of the Controller Area Network (CAN) bus in the autopilot system?

To transmit digital feedback data from the P-ACE System to the AIOP modules (B) Signup and view all the answers

What is the significance of the two AIOP modules in each channel?

They have the same software but perform separate and complementary functions (B) Signup and view all the answers

What is the relationship between the AIOP modules in lane A and lane B?

They must operate at the same time for the servos in that channel to be active and engaged (A) Signup and view all the answers

What is the primary function of the Modular Avionics Unit (MAU) in the Embraer 170/190 aircraft?

To host independent applications and supply an input/output interface service (B) Signup and view all the answers

What is the purpose of the Line Replaceable Modules (LRM) in the Modular Avionics Unit (MAU)?

To make contact with a virtual backplane bus for power and communication (A) Signup and view all the answers

What is the advantage of having two independent processing systems (channels) in each MAU?

To provide redundancy in the event of a failure (D) Signup and view all the answers

How do the Modular Avionics Units (MAU) connect to the aircraft system wiring?

Through the front connectors on the LRM (C) Signup and view all the answers

What is the purpose of the backplane in the MAU?

To make contact with a virtual backplane bus for power and communication (D) Signup and view all the answers

What is the physical structure of the Modular Avionics Unit (MAU)?

A metal cabinet solidly grounded to the aircraft frame (D) Signup and view all the answers

What is the primary function of ASCB terminators?

To absorb signals to prevent reflection (A) Signup and view all the answers

What type of cable is used in the Local Area Network (LAN)?

Thin coaxial cable (C) Signup and view all the answers

What is the frequency of operation of the Controller Area Network (CAN) bus?

500 kHz (A) Signup and view all the answers

What protocol is used in the Local Area Network (LAN)?

TCP/IP (C) Signup and view all the answers

What is the purpose of the Local Area Network (LAN)?

For development, maintenance and software loading (B) Signup and view all the answers

What device controls data transmission on the Local Area Network (LAN)?

NIC (B) Signup and view all the answers

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