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 NOTE : (2) Program pins used for identification of the installation
____ position on the aircraft and the corresponding SDI code to be transmitted. The code definition is provided in table 2.
 NOTE : (3) The ADM transmits the measured pressure with a label
____ depending on the configuration code input discretes. The configuration code definition is provided in table 3.
 ------------------------------------------------------------------------|Input discrete SDI output |Input discrete SDI output |Installation| | pin L Bit 10 state| pin K Bit 09 state| | |----------------------------------------------------------------------| | open 0 | open 0 | Invalid | | open 0 | ground 1 | 1 | | ground 1 | open 0 | 2 | | ground 1 | ground 1 | 3 | ------------------------------------------------------------------------
Table 2 = SDI Code
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 ---------------------------------------------------------------------
| Installation function | Config. code 1 | Config. code 2 | Label | | | Pin N | Pin M | | |-------------------------------------------------------------------| | Total pressure | open | open | 242 | | Left static pressure | open | ground | 176 | | Right static pressure | ground | open | 177 | | Averaged static | ground | ground | 245 | | pressure (uncorrected)| | | | ---------------------------------------------------------------------
Table 3 = Configuration Code
 (4) Output bus All data are transmitted via a single ARINC 429 low-speed serial digital output bus. The outputs from the ADM are a single pressure word having an installation selectable label, two discrete data words, and two identification words. The following table gives:
 -EQ.SYS.LAB.SDI: (SDAC, FWC, DMC...) output label for which the parameter is available
 -PARAMETER DEFINITION: parameter name
 -WORD RANGE/OPER RANGE/RESOLUTION ACCURACY: measurement range. Maximum value transmitted. When the digital value changes, the change step is equal to the accuracy
 -UNIT: unit in which the digital value is transmitted
 -SIG BIT: indicates whether a sign bit is available
 -BITS: number of bits used by the parameter in the label
 -XMSN/INTV: output transmission interval. The refresh rate is given in milliseconds
 -CODE :
 BNR: binary data word
 BCD: binary coded decimal data word
 ISO: data word coded in ISO5 code
 DIS: discrete data word
 HEX: hexadecimal coded
 HYB: mixed code parameters are given in the table 4 below:

 -ALPHA CODE: indicates the parameter mnemonic code
 -SOURCE ORIGIN: parameter source computer or system.
 All these parameters are given in the table 4 below:

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| PARAMETER LIST PARAMETER CHARACTERISTICS (NUMERIC) | -------------------------------------------------------------------------------|EQ.SYS.LAB.SDI|PARAMETER | WORD RANGE |UNIT|SIG |BITS|XMSN|CODE|ALPHA|SOURCE | | |DEFINITION| OPER RANGE | |BIT | |INTV| |CODE |ORIGIN | | |(*=REMARK)| RESOLUTION | | | | | | |BUS No.| | |(X=NOTE) | ACCURACY | | | | | | |ATA REF| | | | | | | | | | |CONV | -------------------------------------------------------------------------------| 242 |TOTAL |100-1400 |hPa | | 18 |29- |BNR | | | | |PRESSURE |+/- 0.25 | | | |31 | | | | |--------------|----------|------------|----|----|----|----|----|-----|-------| | 176 |LEFT STAT |100-1100 |hPa | | 18 |29- |BNR | | | | |PRESSURE |+/- 0.25 | | | |31 | | | | |--------------|----------|------------|----|----|----|----|----|-----|-------| | 177 |RIGHT STAT|100-1100 |hPa | | 18 |29- |BNR | | | | |PRESSURE |+/- 0.25 | | | |31 | | | | |--------------|----------|------------|----|----|----|----|----|-----|-------| | 245 |AVERAGED |100-1100 |hPa | | 18 |29- |BNR | | | | |STATIC |+/- 0.25 | | | |31 | | | | | |PRESSURE | | | | | | | | | | |(UNCORRTD)| | | | | | | | | |--------------|----------|------------|----|----|----|----|----|-----|-------| | 270 |DISCRETE |Table 5 | | | |460-|BCD | | | | |WORD 1 | | | | |500 | | | | |--------------|----------|------------|----|----|----|----|----|-----|-------| | 271 |DISCRETE |Table 6 | | | |460-|BCD | | | | |WORD 2 | | | | |500 | | | | |--------------|----------|------------|----|----|----|----|----|-----|-------| | 377 |EQUIPMENT |Table 7 | | | |460-|BCD | | | | |IDENT | | | | |500 | | | | |--------------|----------|------------|----|----|----|----|----|-----|-------| | 040 |SOFTWARE |Table 8 | | | |460-|BCD | | | | |IDENT | | | | |500 | | | | -------------------------------------------------------------------------------
Table 4 = Digital Outputs
R 1EFF : 051-099, 106-149, 204-299, 301-399, 1 34-11-00Page 23 1401-499, 1Config-3 Aug 01/05 1 1 1CES 1
　
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