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A 737-300/400/500MAINTENANCE MANUAL
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A737-300/400/500MAINTENANCE MANUAL
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IRU BUS DATA INPUTS
INPUT DATA WORDS SOURCE BUS
DADC ISDU FMC
041 SET LAT X X
042 SET LONG X X
043 SET MAG HDG X X
203 ALTITUDE X
210 TAS X
212 ALT RATE X
DAA BUS DATA INPUT
INPUT DATA WORDS SOURCE BUS
FMC
357 BITE WORD X
IRS Digital Input Interface Schematic
Figure 19
DATA WORDS OUTPUT SOURCE BUS & DESTINATION
IRU-3 IRU-1 IRU-2
ISDU DAA FMC FCC A/T DAA FCC
010 PRES POS-LAT X
011 PRES POS-LONG X
012 GROUND SPEED X X
013 TRACK ANGLE X
015 WIND SPEED X
016 WIND DIRECTION X
044 TRUE HEADING X
270 IRU DISCRETES X X X X X
310 PRES POS-LAT X
311 PRES POS-LONG X
312 GROUND SPEED X X X X X X
314 TRUE HEADING X
315 WIND SPEED X X
316 WIND DIRECTION X X
317 TRACK ANGLE-MAG X X X
320 MAGNETIC HDG X X X X X
321 DRIFT ANGLE X
ANGLE 322 FLIGHT PATH X X
323 FLIGHT PATH ACCEL X X X
324 PITCH ANGLE X X X X X X
325 ROLL ANGLE X X X X X X
330 BODY YAW RATE X X X X
331 BODY LONG ACCEL X X X
332 BODY LAT ACCEL X X X
333 BODY NORM ACCEL X X X
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