1553 Data Bus

Question 1

What colour are the aircraft data bus cables?

Answer 1

White with a blue spiral.

Question 2

What type of transformer couplers are used on the Wildcat?

Answer 2

In line.

Question 3

What is the maximum amount of remote terminals (RT’s) that can be connected to the 1553 data bus?

Answer 3

31 because its a 5 bit address.

Question 4

Where is the Control and Display Navigation Unit’s (CDNU) fail caption displayed?

Answer 4

On the emergency control panel (ECP).

Question 5

What is a bus monitor responsible for?

Answer 5

Listens for the exchange of informational data bus and acts as a back up bus controller.

Question 6

What is the purpose of the terminator?

Answer 6

70 Ohm terminator impedance matches and prevents data bouncing back.

Question 7

What are the type of words?

Answer 7

Command
Status
Data