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 B. Input/Output Miscellaneous Signals This table includes input or output interfaces as power supplies, synchronization between computers, etc. However, some signals are not mentioned here, as flight test computer links (SPATIAL), maintenance test links (MARS), pin programs or ground pins.
R 1EFF : 001-049, 051-099, 101-105, 151-156, 1 31-52-00Page B40 1201-203, 1Config-1 May 01/05 1 1 1CES 1 -------------------------------------------------------------------------------| PARAMETER DEFINITION | SIGNAL KIND | FROM | TO | |-----------------------------|---------------|--------------|----------------| | AUDIO FREQ OUT L | OUTPUT | FWC 1/2 |LOUDSPEAKER-CAPT| | AUDIO FREQ OUT R | OUTPUT | FWC 1/2 |LOUDSPEAKER-F/O | | AUDIO SYNCHRO INP | INPUT | OPP FWC | | | AUDIO SYNCHRO OUT | OUTPUT | | OPP FWC | | SYNCHRO MODE | INPUT | T BLOCK | | | SYNCHRONIZATION INP | INPUT | FWC 2 | FWC 1 | | DISC SYNCHRO OUT | OUTPUT | FWC 2 | FWC 1 | | VOCAL SYNTHESE SYNCHRO OUT | OUTPUT | FWC 1/2 | FWC 2/1 | | VOCAL SYNTHESE SYNCHRO INP | INPUT | FWC 2/1 | FWC 1/2 | | FWC POWER SUPPLY 115VAC | INPUT |115VAC ESS BUS| FWC 1 | | FWC POWER SUPPLY 115VAC | INPUT |115VAC BUS 2 | FWC 2 | -------------------------------------------------------------------------------

1EFF : 001-049, 051-099, 101-105, 151-156, 1 31-52-00Page B41 1201-203, 1Config-1 May 01/05 1 1 1CES 1

 C. Output Discrete Signals This table includes all the two state analog parameters. In the following columns are given:
 -
State Zero Parameter Definition : Open circuit.

 -
State One Parameter Definition : Ground.

 -TRANSMITTED TO : Computer or component which receives the signal.
 -------------------------------------------------------------------------------|STATE ZERO PARAMETER DEFINITION|STATE ONE PARAMETER DEFINITION|TRANSMITTED TO| |-------------------------------|------------------------------|--------------| | CAPT AUTOLAND OFF | CAPT AUTOLAND ON |AUTOLAND | | | |LIGHT - CAPT | |-------------------------------|------------------------------|--------------| | CAPT MC OFF | CAPT MC ON |MASTER CAUTION| | | |LIGHT - CAPT | |-------------------------------|------------------------------|--------------| | CAPT MW OFF | CAPT MW ON |MASTER WARN | | | |LIGHT - CAPT | |-------------------------------|------------------------------|--------------| | F/O AUTOLAND OFF | F/O AUTOLAND ON |AUTOLAND LIGHT| | | |- F/O | |-------------------------------|------------------------------|--------------| | F/O MC OFF | F/O MC ON |MASTER CAUTION| | | |LIGHT - F/O | |-------------------------------|------------------------------|--------------| | F/O MW OFF | F/O MW ON |MASTER WARN | | | |LIGHT - F/O | |-------------------------------|------------------------------|--------------| | FWC NOT VALID | FWC VALID |FMGC 1/2 | |-------------------------------|------------------------------|--------------| | RED ARROW ON L/G CTL LEVER SW | RED ARROW ON L/G CTL LEVER SW|ANNLT TEST & | | UNIT OFF | UNIT ON |INTFC BOARD | |-------------------------------|------------------------------|--------------| | NO STALL | STALL ON | GPWC / | | | | P/B GPWS SYS | |-------------------------------|------------------------------|--------------|
 1EFF : 001-049, 051-099, 101-105, 151-156, 1 31-52-00Page B42 1201-203, 1Config-1 May 01/05 1 1 1CES 1

R **ON A/C 001-049, 062-099, 101-149, 151-199, 201-299, 301-399, 401-499, Post SB 31-1141 For A/C 001-049,062-099,101-105,151-156,201-203, FWC - ACQUISITION/INTERFACE - DESCRIPTION AND OPERATION
_______________________________________________________ R **ON A/C 001-049, 062-099, 101-149, 151-199, 201-299, 301-399, 401-499, Post SB 31-1155 For A/C 001-049,062-099,101-105,151-156,201-203,
 1. General
_______ This note defines the interfaces between the various aircraft systems and the Flight Warning Computer (FWC).
 Several signal types are used :
 -Wired discretes
 -Boolean on bus
 -Digital on bus
 -Analog on synchro
 -supplies and miscellaneous.
 2. Signal Types
____________
 A. Wired Discretes
 Each wired discrete is assigned to a computer input pin.

 (1)
 P-This type of discrete is defined by the two states (on data bus):

 -
logic 0 : the computer detects ground

 -
logic 1 : the computer detects absence of ground.

 

 (2)
 P+
 This discrete is defined by the two states:

 -
logic 1 : the computer detects +28VDC

 -
logic 0 : the computer detects absence of 28VDC.

 

R 1EFF : 001-049, 062-099, 101-149, 151-199, 1 31-52-00Page 1 1201-299, 301-399, 401-499, 1Config-2 Aug 01/05 1 1 1CES 1

 (3)
 P- off

 -
logic 0 : the computer detects disappearance of ground

　
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