R  B. Transponder Buses 
R  (1) TCAS interface 
R  Data between the transponder and the TCAS are transferred on two 
R  unidirectional buses. These buses are high-speed ARINC 429 buses. 
R  (2) ADIRU interface 
R  The transponder receives inputs from two ADIRUs. Air data 1 and Air 
R  data 2 supply the transponder with barometric altitude data. 
R  (3) CFDIU interface 
R  The Centralized Fault Display Interface Unit (CFDIU) bus consists of 
R  two low-speed ARINC 429 buses, one in each direction. 
R  (4) FMGC interface 
R  The transponder receives flight identification on an ARINC 429 
R  low-speed bus in four labels. The Flight identification may be 
R  transmitted to the ground. 

R 1EFF : 051-099, 1 34-52-00Page 15 1 1 May 01/05 1 1 1CES 1R -------------------------------------------------------------------------------R | PARAMETER LIST PARAMETER CHARACTERISTICS (NUMERIC) | R -------------------------------------------------------------------------------R |EQ.SYS.LAB.SDI|PARAMETER | WORD RANGE |UNIT|SIG |BITS|XMSN|CODE|ALPHA|SOURCE | R | |DEFINITION| OPER RANGE | |BIT | |INTV| |CODE |ORIGIN | R | |(*=REMARK)| RESOLUTION | | | | | | |BUS No.| R | |(X=NOTE) | ACCURACY | | | | | | |ATA REF| R | | | | | | | | | |CONV | R -------------------------------------------------------------------------------R | 125 |TIME | | | | | |BCD | | | R | 126 |FLIGHT | | | | | |BNR | | | R | |PHASE | | | | | | | | | R | 155 |AIRCRAFT | | | | | |DISC| | | R | |CONFIGURA | | | | | | | | | R | |TION | | | | | | | | | R | 271 |WORD 1 | | | | | |DISC| | | R | 272 |WORD 2 | | | | | |DISC| | | R | 273 |WORD 3 | | | | | |DISC| | | R | 203 |WORD 4 | | | | | |BCD | | | R | 275 |WORD 5 | | | | | |DISC| | | R | 276 |WORD 6 | | | | | |DISC| | | R | 277 |WORD 7 | | | | | |DISC| | | R | 274 |WORD 8 | | | | | |DISC| | | R | 350 |MAINTENAN | | | | | |DISC| | | R | |CE | | | | | | | | | R | 356 |BITE | | | | | |N/A | | | R | |STATUS | | | | | | | | | R | | | | | | | | | | | R | 233-236 |FLIGHT | | | | | |BNR | | | R | |NUMBER | | | | | | | | | R | |STATUS | | | | | | | | | R -------------------------------------------------------------------------------

R NOTE : WORD 1: TCAS broadcast coordination data 1
____ R WORD 2: TCAS broadcast coordination data 2 R WORD 3: Mode S ground uplink sensitivity level command R WORD 4: Baro corrected altitude R WORD 5: Mode S address part 1 R WORD 6: Mode S address part 2 R WORD 7: Acknowledgement of non periodic message R WORD 8: TCAS broadcast coordination data
R 1EFF : 051-099, 1 34-52-00Page 16 1 1 May 01/05 1 1 1CES 1

R **ON A/C 106-149, 221-299, 301-399, 401-499,

 The ARINC 429 signals provide a two-way interface between the
 transponder and other aircraft systems.
 The ARINC 429 signals consist of 32-bit data words. The first 8 bits
 of the word make up a label which specifies the type of information
 contained in that word.
 The ARINC 429 buses provide the interfaces with:

 -
The Traffic Collision Avoidance System (TCAS) computer

 -
The Air Data and Inertial Reference Units (ADIRUs, ADC and IRS)

 -
The Centralized Fault Display Interface Unit (CFDIU)

 -
The Flight Management and Guidance Computer (FMGC)

 -
The Flight Control Unit (FCU)

 -
The ATC/TCAS Control Panel

 NOTE : MMR/ATC link, ATSU/ATC link, FCU/ATC link and ADIRU (IR
____ part)/ATC link are installed if the optional wiring provisions for enhanced surveillance/extended squitters are validated. No data are currentlty transmitted on ATSU/ATC link; MMR /ATC link are provisions only.
 A. Transponder Input Data
 ----------------------------------------------------------------------------| SOURCE | LABEL | PARAMETER | ----------------------------------------------------------------------------| ATC/TCAS | 013 | TCAS display control | | control panel | 015 | Display altitude | | | 016 | TCAS/ATC control | | | 031 | ATCRBS control | | | disc | STBY/ON | | | disc | Air/Ground | -----------------|----------------------------------------------------------| TCAS | 273 | Tx word 1 | | | 274 | Tx word 2 | | | 275 | Tx word 3 | ----------------------------------------------------------------------------| FCU | 102 | Selected Altitude | ----------------------------------------------------------------------------| CFDIU | 227 | Command to systems | | | 125 | GMT | | | 260 | Date | | |233 to 236| Flight number | | |040 to 042| City pair | | |301 to 304| A/C ident | | | 126 | Flight phase |
R 1EFF : 106-149, 221-299, 301-399, 401-499, 1 34-52-00Page 17 1 1 Aug 01/05 1 1 1CES 1 ----------------------------------------------------------------------------| SOURCE | LABEL | PARAMETER | ----------------------------------------------------------------------------| |155 to 157| A/C configuration | ----------------------------------------------------------------------------| ADIRU | 310 | Latitude present position | | (IR part) | 311 | Longitude present position | | | 312 | Ground speed | | | 313 | True track angle | | | 320 | Magnetic heading | | | 325 | Roll angle | | | 335 | Track angle rate | | | 365 | Inertial vertical velocity | | | 366 | N/S velocity | | | 367 | E/W velocity | | | 076 | GNSS alt | | | 103 | GNSS track angle | | | 110 | GNSS latitude coarse | | | 111 | GNSS longitude coarse | | | 112 | GNSS ground speed | | | 120 | GNSS latitude fine | | | 121 | GNSS longitude fine | | | 130 | Autonomous Hill | | | 150 | Time | | | 165 | GNSS vertical velocity | | | 166 | GNSS N/S velocity | | | 174 | GNSS E/W velocity | | | 247 | Horizontal figure of merite | ----------------------------------------------------------------------------| ADIRU | 203 | Altitude barometric | | (ADR part) | 205 | Mach | | | 206 | Computed airspeed | | | 210 | True airspeed | | | 212 | Altitude rate barometric | | | 234 | Baro correction | ----------------------------------------------------------------------------| FMS | 233 | Flight number word 1 | | | 234 | Flight number word 2 | | | 235 | Flight number word 3 | | | 236 | Flight number word 4 | | | 310 | Latitude present position | | | 311 | Longitude present position | ----------------------------------------------------------------------------
　
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