UH60
Which FMS initially assumes the role of Bus Controller(BC) and under what condition does the other FMS assume the role of BC?
The Bus Controller (BC) is the copilot Flight Management Set (FMS), which assumes control at power up and initiates information transfers on the data bus. The pilot FMS can also assume bus control in the event of a failure of the copilot FMS
How much time is required to Inspect the Flight Management System Data Bus Couplers?
0.1
When was the MIL-STD-1553B released?
In September 1978
The MIL-STD-1553B data bus can support multiple BCs, but__________?
only one BC may be active at any given time
What connector is connected to J2 on the No.2 Ethernet Switching Hub (ESH)
P1693R
What Materials/Parts are required for the removal of the B-1 Data Bus Coupler?
Cloth, CheeseclothWP 3586, Item 124
Isopropyl AlcoholWP 3586, Item 233
Towel, Machinery WipingWP 3586, Item 471
The Data Bus Tester has two modes of operation what are they?
Normal and Shield Test
How many data bus couplers are in the aircraft and where are they located?
There are 16 data bus couplers in the CH-47F:
a. Two in the nose compartment
b. Eight in the avionics compartment/heater compartment
c. Four in the cabin area, 43 Section
d. Two in the center console
What sets/components interface with the MIL-STD-1553B?
Flight Management Set (FMS); pilot and copilot FMS
U/VHF-FM Radio Set (COMM2); Receiver/Transmitter (R/T)
Radar Detecting/Laser Detecting Set; radar processor
EGI No. 1 and EGI No. 2
Transponder Set; Receiver/Transmitter (R/T)
Improved Heads Up Display (IHUD); symbol generator or Advanced Sight and Display Computer (ASDC)
Civil Navigation Set; receiver
Low Frequency/Automatic Direction Finder (LF/ADF); receiver
Intercommunication Set (ICS); interface control unit (ICU)
No. 1 VHF/FM Radio Set; Receiver/Transmitter (R/T)
No. 2 VHF/FM Radio Set; Receiver/Transmitter (R/T)
LOS Multiband ARC-231 Radio Set (COMM2); Receiver/Transmitter (R/T)
LOS/SATCOM Multiband ARC-231 Radio Set (COMM3); Receiver/Transmitter (R/T)
Flight Mission Display Set (FMDS); Multifunction Displays (MFDs)
Tactical Air Navigation Set (TACAN); Receiver/Transmitter (R/T)
Integrated Vehicle Health Management Unit (IVHMU)
Common Missile Warning System/Improved Counter-Measure Dispenser (CMWS/ICMD)
What is the Personnel Required when troubleshooting the Ethernet Switching Hub?
Avionic Mechanic 15N
From what component does the Embedded Digital Map Generator receive its data?
Mass Memory Server (MMS)
Which MFDs share a SMPTE 292M cable?
None, Each MFD has its own dedicated SMPTE-292M video data cable from VPM1 and VPM2.
When doing maintenance on the MIL-STD-1553B Data Bus Coupler A or B, what does the Warning say?
ISOPROPYL ALCOHOL, TT-I-735
What is the NSN of the Data Bus Tester used to do operational checks on the MIL-STD-1553B?
6625-01-481-1153
The data bus LAN that is used on virtually all commercial aircraft
ARINC 429
When is the Data Word transmitted?
The data word is transmitted by the BC, by an RT responding to the BC, or from RT to RT after commanded by the BC. A maximum of 32 data words may be sent with, or in response to, a command word
What Test Equipment is required to perfrom operional check on MIL-STD-1553B?
Tester, 1553 Data Bus
What are the connections on DBC A-1?
LTR
DBC A-2
PILOT FMS
VOR/ILS RECEIVER
NO. 2 EGI
PILOT INBOARD MFD
PILOT OUTBOARD MFD
What is the ohm value of the two terminators used in the MIL-STD-1553B?
78K and 3K
Which CDU is assigned a status of RT and will assume the role of Bus Controller (BC) when necessary?
Pilot CDU