Landing Gear Indicating and Warning - Schematic Figure 003 (SHEET 1)
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 Landing Gear Indicating and Warning - Schematic Figure 003 (SHEET 2)
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 LGCIU - Users of ARINC 429 Output Data Figure 004
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 The parameter lists that follow give the data that each LGCIU can send on its three ARINC 429 data busses. These lists give this data:
 -EQPT, the equipment number for the computer that sends the parameter
 -SYS, the system number of the computer which sends the parameter
 -LABEL, the label of the parameter (ARINC 429 octal value)
 -SDI, the Source/Destination Identifier for each system. (01 identifies that the output data is from the LGCIU in system No 1. 10 identifies that the output data is from the LGCIU in system No 2)
 -PARAMETER DEFINITION, the parameter name
 -RANGE/ACCURACY, for the LGCIUs, this column to show the condition of the ARINC 429 Discrete Data Words. Only the bit condition for a parameter that is correct (bit status 1), is shown. In all cases the the bit condition is low (bit status 0) when the parameter is incorrect
 -UNIT, when applicable, this column gives the units used in the RANGE column (e.g. knots, degrees)
 -SIG BIT, this column shows if a sign bit is available and in which bit position of the data word it is found
 -DATA BITS, this column gives, the quantity of data bits in use for each label and the number of each data bit. (For BCD coded data words this symbol "(1)" shows the number of significant data digits)
 -UPD/MSEC, this tells you how frequently a LGCIU sends data
 -CODE: BNR = binary data word BCD = binary coded decimal data word ISO = data word coded in ISO 5 Code DIS = discrete data word HEX = hexadecimal coded OCT = octal coded HYB = mixed code, e.g. bit 11 to 16 DIS, bit 17 to 28 BNR
 -ALPHA CODE, this column shows the code for a parameter (if available). When you enter this code through a MCDU the display shows the current parameter(s) for each of the LGCIUs
 -SOURCE ORIGIN, the initial source of the parameter
 -BUS N0. the identification numbers of the data busses connected to the source computer
 -ATA REF, the ATA Chapter in which you can find the computer that is the source of the parameter
 -CONV, when applicable this gives the parameter LABEL at the output of the source computer (for the case of a change in a parameter LABEL as it goes through a computer).
 LGCIU 1/2 PARAMETER LIST EQPT 6D
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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 | -------------------------------------------------------------------------------| 1 020 01 |LGCIU | | | | 19 |100 |DIS | |LGCIU | | 2 020 10 |DISCRETE | | | | | | | |1/2 | | |WORD No1 | | | | | | | | | | |----------|------------|----|----|----|----|----|-----|1,2,3 | | |LH GEAR |BIT STATUS 1| | |No11| | | | | | |NOT LKD UP| | | | | | | |32-31- | | |AND NOT | | | | | | | |00 | | |SEL DN | | | | | | | | | | |----------|------------|----|----|----|----|----|-----| | | |RH GEAR |BIT STATUS 1| | |No12| | | | | | |NOT LKD UP| | | | | | | | | | |AND NOT | | | | | | | | | | |SEL DN | | | | | | | | | | |----------|------------|----|----|----|----|----|-----| | | |NOSE GEAR |BIT STATUS 1| | |No13| | | | | | |NOT LKD UP| | | | | | | | | | |AND NOT | | | | | | | | | | |SEL DN | | | | | | | | | | |----------|------------|----|----|----|----|----|-----| | | |LH GEAR |BIT STATUS 1| | |No14| | | | | | |NOT LKD DN| | | | | | | | | | |AND SEL DN| | | | | | | | | | |----------|------------|----|----|----|----|----|-----| | | |RH GEAR |BIT STATUS 1| | |No15| | | | | | |NOT LKD DN| | | | | | | | | | |AND SEL DN| | | | | | | | | | |----------|------------|----|----|----|----|----|-----| | | |NOSE GEAR |BIT STATUS 1| | |No16| | | | | | |NOT LKD DN| | | | | | | | | | |AND SEL DN| | | | | | | | | | |----------|------------|----|----|----|----|----|-----| | | |LH DOOR |BIT STATUS 1| | |No17| | | | | | |NOT UPLKD | | | | | | | | | | |----------|------------|----|----|----|----|----|-----| | | |RH DOOR |BIT STATUS 1| | |No18| | | | | | |NOT UPLKD | | | | | | | | | | |----------|------------|----|----|----|----|----|-----| | | |NOSE GEAR |BIT STATUS 1| | |No19| | | | |
　
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