Serial Data Bus

Question 1

The Ethernet Switching Hub provides a link between IHMU and what component for data download and upload?

Answer 1

DTS

Question 2

What must be done on the last bus coupler in the series?

Answer 2

78 ohm Bus terminator. Red banded

Question 3

Where are A-1, A-2, and A-3 Data Bus Couplers located?

Answer 3

under pilot seat

Question 4

What determines industry standard for how avionics are designed and built? (Reference Student Handout)

Answer 4

ARINC

Question 5

Each MIL-STD 1553B Data Bus Coupler consist of how many jacks? What are jacks J1 and J2 used for?

Answer 5

9 Jacks. J1 input J2 output

Question 6

What DBC Stub/Connecter(s) is the No. 1 EGI connected to?

Answer 6

(WP 0093)
A2 and B2

Question 7

Where does the No.1 and No. 2 ESHs receive power?

Answer 7

Both ESHs receive power from DC PRI and WOW signal to prevent loading in-flight

Question 8

What is the purpose of a data bus?

Answer 8

To provide a medium for the exchange of data and information between various systems

Question 9

What must be done on the last bus coupler in the series?

Answer 9

Terminated with a Red banded 78 ohm bus terminator

Question 10

What must be done on a empty port on a bus coupler in the series?

Answer 10

Terminated with a 3,000 ohm stub terminator

Question 11

Where is the B4 data bus coupler located?

Answer 11

Transition section upper L/H side

Question 12

How do we identify 1553B wiring in the UH60M?

Answer 12

Blue wiring

Question 13

What is used as the bus controller for the 1553B data bus?

Answer 13

FMS

Question 14

What determines industry standard for how avionics are designed and builts?

Answer 14

ARINC

Question 15

What primary version is used in the UH-60M?

Answer 15

ARINC 429 version

Question 16

Why is the Army using ARINC bus Systems?

Answer 16

ARINC allows the Army to buy and quickly integrate commerical off the shelf avionics systems

Question 17

How do we identify the ARINC 429 wiring in the 60M?

Answer 17

Black twisted wiring

Question 18

What are the four major components on the ARINC 429 data bus?

Answer 18

NO. 1 and No. 2 FCCs , NO. 1 and No. 2 EGIs, NO. 1 and No. 2 DCUs, NO. 1 and No. 2 ADCs.

Question 19

Is the ARINC 429 bi-directional or unidirectional?

Answer 19

The ARINC 429 is the only one of the three serial data buses that is UNI-Directional

Question 20

What is the most important characteristic of the Ethernet bus system?

Answer 20

Interface capability with PC-based computers – Commercial off the Shelf (COTS).

Question 21

How do we identify ethernet wiring on the 60M?

Answer 21

Yellow wiring

Question 22

What are some of the major systems that are on the ethernet data bus?

Answer 22

DTS, IVHMS, CMWS, IDM, FMS, and JVMF

Question 23

What type of data bus provides an interface between all ICS control panels and the interface control unit?

Answer 23

RS 485