Serial Data Bus Flashcards
The Ethernet Switching Hub provides a link between IHMU and what component for data download and upload?
DTS
What must be done on the last bus coupler in the series?
78 ohm Bus terminator. Red banded
Where are A-1, A-2, and A-3 Data Bus Couplers located?
under pilot seat
What determines industry standard for how avionics are designed and built? (Reference Student Handout)
ARINC
Each MIL-STD 1553B Data Bus Coupler consist of how many jacks? What are jacks J1 and J2 used for?
9 Jacks. J1 input J2 output
What DBC Stub/Connecter(s) is the No. 1 EGI connected to?
(WP 0093)
A2 and B2
Where does the No.1 and No. 2 ESHs receive power?
Both ESHs receive power from DC PRI and WOW signal to prevent loading in-flight
What is the purpose of a data bus?
To provide a medium for the exchange of data and information between various systems
What must be done on the last bus coupler in the series?
Terminated with a Red banded 78 ohm bus terminator
What must be done on a empty port on a bus coupler in the series?
Terminated with a 3,000 ohm stub terminator
Where is the B4 data bus coupler located?
Transition section upper L/H side
How do we identify 1553B wiring in the UH60M?
Blue wiring
What is used as the bus controller for the 1553B data bus?
FMS
What determines industry standard for how avionics are designed and builts?
ARINC
What primary version is used in the UH-60M?
ARINC 429 version
Why is the Army using ARINC bus Systems?
ARINC allows the Army to buy and quickly integrate commerical off the shelf avionics systems
How do we identify the ARINC 429 wiring in the 60M?
Black twisted wiring
What are the four major components on the ARINC 429 data bus?
NO. 1 and No. 2 FCCs , NO. 1 and No. 2 EGIs, NO. 1 and No. 2 DCUs, NO. 1 and No. 2 ADCs.
Is the ARINC 429 bi-directional or unidirectional?
The ARINC 429 is the only one of the three serial data buses that is UNI-Directional
What is the most important characteristic of the Ethernet bus system?
Interface capability with PC-based computers – Commercial off the Shelf (COTS).
How do we identify ethernet wiring on the 60M?
Yellow wiring
What are some of the major systems that are on the ethernet data bus?
DTS, IVHMS, CMWS, IDM, FMS, and JVMF
What type of data bus provides an interface between all ICS control panels and the interface control unit?
RS 485
