avionics domain network concept

Question 1

what is the purpose of the domain concept

Answer 1

subdivide data networks to inhibit propagation of faults

Question 2

what is the purpose of the SCI

Answer 2

harsh interface between avionics network and avionics domain IP spaces

• switches software loading off during flight
• VERY restrictive

Question 3

draw the domain concept for the A380

Answer 3

see pic

Question 4

how are the avionics domain and flight ops domain separated within the network server system

Answer 4

a data diode -> only allows information to travel in one direction

Question 5

what does the avionics network contain?

Answer 5

all safety critical flight systems

flight controls
landing gear
fuel
engine controls
cockpit displays 
ATC communication

Question 6

how is avionics network connected?

Answer 6

ADCN (avionics data communication network) based on AFDX

Question 7

what is the main function of the avionics domain?

Answer 7

platform for communication, maintenence, and documentation

Question 8

what are key components in the avionics domain

Answer 8

• OIT
• OMT
• Aircraft router unit -> centralized router
• Openworld diode
• Aircraft network server unit
• SIRU (link to FAPS)

Question 9

purpose of flight ops domain

Answer 9

support cockpit crew
ATG communication (HF Satcom)

Question 10

which two domains use the OIT? How is this managed?

Answer 10

avionics domain
flight ops domain

Data diode in between -> hard switch

Question 11

key components of flight ops domain

Answer 11

ANSU (aircraft network server unit)
laptops
ARU (aircraft router unit)

Question 12

predominant cabin domain functions

Answer 12

• external communication

- airline specific cabin applications

Question 13

main componenets of cabin domain

Answer 13

• cabin router unit (CRU)
• cabin network server unit (CNSU)
• infrestructure for wireless communication