MAU Architecture and NIC Functionality

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What is the primary function of the NIC?

To control the Avionics Standard-Communication Bus

To manage the Backplane Interface Controller

To transmit and receive ASCB and LAN data (correct)

To program the Aircraft Personality Modules

What type of memory is used in the BIC frame buffer?

SRAM (Static Random Access Memory)

EPROM (Erasable Programmable Read-Only Memory)

ROM (Read-Only Memory)

Dualport RAM (Random Access Memory) (correct)

What type of data is programmed into the Aircraft Personality Modules?

Custom data for the aircraft (correct)

Controller Area Network data

ASCB and LAN data

System identification data only

What is the purpose of the software firewalls in the MAU?

To protect the MAU from malicious data Signup and view all the answers

What is the function of the ASCB coupler?

To connect the ASCB to the NIC Signup and view all the answers

What is the name of the bus that connects client modules to the backplane bus?

Bus Interface Controller (BIC) Signup and view all the answers

What is the primary purpose of an ASCB terminator?

To absorb signals so that they do not reflect back down the line Signup and view all the answers

What is the primary function of the NIC in a Local Area Network?

To control data transmission on the LAN bus Signup and view all the answers

What type of cable is used in the LAN?

Thin coaxial cable Signup and view all the answers

What is the primary use of the Local Area Network (LAN) in an aircraft?

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

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

500 kHz Signup and view all the answers

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

TCP/IP Signup and view all the answers

What is a characteristic of the CAN bus network?

No master controls when individual nodes have access to read and write data. Signup and view all the answers

What is labeled with a unique arbitration ID in a CAN frame?

The frame itself Signup and view all the answers

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. Signup and view all the answers

What is a feature of the CAN specification?

A method of error checking on each frame's contents. Signup and view all the answers

What is the construction of the CAN bus network?

Twisted, shielded pair with terminators. Signup and view all the answers

What happens to lower priority nodes when multiple nodes try to transmit a message onto the CAN bus at the same time?

They wait until the bus becomes available before trying to transmit again. Signup and view all the answers

What is the primary purpose of the AIOP modules?

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

How do the AIOP modules communicate with the servos?

Through a bidirectional CAN data bus Signup and view all the answers

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

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

How many AIOP modules operate in each channel?

Two Signup and view all the answers

What is the function of the Flight Guidance Control System (FGCS)?

To provide yaw damper and turn coordination signals Signup and view all the answers

What is the purpose of the CAN bus interface in the Flight Control Modules (FCMs)?

To transmit digital feedback data to the AIOP modules Signup and view all the answers

What is the primary advantage of the AFDX technology?

Secure and reliable communications Signup and view all the answers

What is the function of the AFDX switches?

To manage data traffic on the network Signup and view all the answers

What is the characteristic of the AFDX cable?

It is a full-duplex physical link Signup and view all the answers

What is the composition of the AFDX cable?

Four wires, two pairs for transmission and reception Signup and view all the answers

What is the significance of the term 'full-duplex' in the context of AFDX cable?

The subscriber can simultaneously transmit and receive data Signup and view all the answers

What is the data rate of the AFDX technology?

10 Mb/s and 100 Mb/s Signup and view all the answers