Avionics System Design
STANAG 3910
The desire to increase the transmission rate from 1Mbit/sec motivated the evolution of STANAG 3910 which is able to provide 20M bit/sec Data rate.
Its has capacity to transmits 132 blocks of 32 words which includes 4096 words. whereas MIL-STD-1553B has only capacity to send 32 words.
It has 31 remote terminal as MIL-STD-1153B has.
its can be interface with MIL-STD-1553B by using starter coupler. A bus controller encodes the instructions by Manchester Encoding
MONOPULSE
Monopulse tracking technique is the most preferred technique which determines on the basis RETURNS PULSE rather than beam sequences such a Sequential lobing and Conical Scan.
Something about my Aircraft B-737-400
Crew 2
Passengers 146 / 159, max. 189
Propulsion 2 Turbofan Engines
Engine Model CFM Intl. CFM56-3B2, CFM56-3C
Engine Power (each) 98 / 105 kN 22000 / 23500 lbf
Speed 933 km/h 504 kts
580 mph
Mmo (max. Mach) Mach 0.82
Service Ceiling 11.278 m 37.000 ft
Range 5.186 km 2.800 NM 3.222 mi.
Empty Weight 33.650 kg 74.185 lbs
max. Takeoff Weight 68.039 kg 150.000 lbs
max. Landing Weight 56.246 kg 124.000 lbs
Wing Span 28,88 m 94,8 ft
Wing Area 105,4 m² 1135 ft²
Length 36,40 m 119,4 ft
Height 11,07 m 36,3 ft
First Flight 19.02.1988
Production Range 1988-2000
Total Production 486
Courtesy of British Airways
Something About MIL-STD-1553......
ReplyDelete1)Its a Military Standard of Aviation Data Bus Its used to Interface different components ,modules with commons data bus.
2)MIL-STD-1553B defines the term Time Division Multiplexing (TDM) as
“the transmission of information from several signal sources through one
communications system with different signal samples staggered in time to
form a composite pulse train.”
3)Data Rate 1 MHz
Word Length 20 bits
Data Bits / Word 16 bits
Message Length Maximum of 32 data words
Transmission Technique Half-duplex
Operation Asynchronous
Encoding Manchester II bi-phase
Protocol Command/response
Bus Control Single or Multiple
Fault Tolerance Typically Dual Redundant, second
bus in “Hot Backup” status
Message Formats Controller to terminal
Terminal to controller
Terminal to terminal
Broadcast
System control
Number of Remote Terminals Maximum of 31
Terminal Types Remote terminal
Bus controller
Bus monitor
Transmission Media Twisted shielded pair
Coupling Transformer and direct