30 Questions
What is the primary function of the NIC?
To transmit and receive ASCB and LAN data
What type of memory is used in the BIC frame buffer?
Dualport RAM (Random Access Memory)
What type of data is programmed into the Aircraft Personality Modules?
Custom data for the aircraft
What is the purpose of the software firewalls in the MAU?
To protect the MAU from malicious data
What is the function of the ASCB coupler?
To connect the ASCB to the NIC
What is the name of the bus that connects client modules to the backplane bus?
Bus Interface Controller (BIC)
What is the primary purpose of an ASCB terminator?
To absorb signals so that they do not reflect back down the line
What is the primary function of the NIC in a Local Area Network?
To control data transmission on the LAN bus
What type of cable is used in the LAN?
Thin coaxial cable
What is the primary use of the Local Area Network (LAN) in an aircraft?
For development, maintenance, and software loading
What is the frequency of operation of the Controller Area Network (CAN) bus?
500 kHz
What protocol is used in the Local Area Network (LAN)?
TCP/IP
What is a characteristic of the CAN bus network?
No master controls when individual nodes have access to read and write data.
What is labeled with a unique arbitration ID in a CAN frame?
The frame itself
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 a feature of the CAN specification?
A method of error checking on each frame's contents.
What is the construction of the CAN bus network?
Twisted, shielded pair with terminators.
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.
What is the primary purpose of the AIOP modules?
To collect data from avionic and flight control systems
How do the AIOP modules communicate with the servos?
Through a bidirectional CAN data bus
What is the purpose of the Linear Variable Differential Transformers (LVDTs)?
To provide analogue feedback to the Primary Actuator Control Electronics (P-ACE) System
How many AIOP modules operate in each channel?
Two
What is the function of the Flight Guidance Control System (FGCS)?
To provide yaw damper and turn coordination signals
What is the purpose of the CAN bus interface in the Flight Control Modules (FCMs)?
To transmit digital feedback data to the AIOP modules
What is the primary advantage of the AFDX technology?
Secure and reliable communications
What is the function of the AFDX switches?
To manage data traffic on the network
What is the characteristic of the AFDX cable?
It is a full-duplex physical link
What is the composition of the AFDX cable?
Four wires, two pairs for transmission and reception
What is the significance of the term 'full-duplex' in the context of AFDX cable?
The subscriber can simultaneously transmit and receive data
What is the data rate of the AFDX technology?
10 Mb/s and 100 Mb/s
Learn about the architecture of MAU boards and how the NIC (Network Interface Card) transmits and receives data through the Backplane Interface Controller (BIC). Understand the role of the BIC frame buffer and how it enables communication between the NIC and client modules.
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