Avionics Management System Flashcards
Which component provides the primary interface for the display and control of the communications system?
(4) CDU (CDU–7000)
(a) Provides operators a central data entry point and display
(b) Displays communication radio status, frequencies and presents
Which component holds DAFIF information?
Mass Memory Server (MMS)
(a) Stores and provides Digital Map data to Embedded Digital Map Generator (EDMG) within the Processor Switch Module (PSM).
(b) Also serves as a medium to load the CDUs with the Digital Aeronautical Flight Information File (DAFIF).
Which of the following acts as a server for the Avionics System LAN?
In simple terms, the System Manager (SM) acts as the server for the ASLs.
(MFD under the Mission Processor)
What partition is responsible for crew alerts and engine instruments?
EICAS Manager (under the MFD’s Display Processor)
a) Manages:
1 Aircraft data related to the engines, transmissions and fuel system
2 Monitors data for failures and operational limits
3 Manages resulting warnings, cautions, and advisories
Which MFDs contain the operable System Managers?
SM resides only in MFD1 and MFD4
Which component provides signal conversion and routing services for video sensors?
General Purpose Processor Units (GPPU) (GPPU-8600) there are 2 of them
Which component receives data from non-data bus systems and converts this data to digital format?
Data Concentrator Unit (DCU)
(a) Functions as data bus interface for all sensors and LRUs which are not controlled through the data buses.
(b) Receives information from these sensors through various data transfer mediums.
(c) Information is then converted to digital format for transfer across the data bus.
(d) Some critical sensors and LRUs are connected to both DCU 1 and DCU 2 for redundancy.
Which data transfer medium is able to send and receive data simultaneously?
Processors within the MFDs and the CDUs send and receive data via both networks simultaneously ????????
Which medium transfers data via a command in one direction, then a response in the other direction?
MIL-STD-1553B Data Bus
BC sends a command in one direction, then the RT responds in the other direction
Which component functions as the Bus Controller?
Bus Controller (BC)
1) Is the first CDU to successfully pass Built-In Test (BIT)
2) Sends command to Remote Terminal (RT) which replies with a response
3) Manages data transfers on data bus in a logical sequenced manner
4) Only one may be active at any given time on MIL-STD-1553B data bus
Which data transfer medium is able to move data in one direction only?
ARINC 429 data bus LAN
(a) Industry standard that is used on virtually all commercial aircraft
(b) This medium is a shielded twisted pair of wires
(c) Data flow in one direction only, from data transmitter to one or more receivers having need of that information (up to 20 components)
Which data transfer medium uses data bus couplers to connect each component to the main bus?
MIL-STD-1553B Data Bus
Which manager controls system initialization and shutdown?
SYSTEM MANAGER (SM)
SM controls:
1 System initialization and shutdown
2 Maintains system-wide health status
3 Zeroizes all mission and cryptographic data
Which component provides routing services and digital map generation?
General Purpose Processor Units (GPPU) (GPPU-8600)
The communication radios are controlled by which component and data bus?
CDU and Comm Manager ??????????????????????????
