-
The purpose of this document is to give a description of the EIS
Controls. 31-62-00 Display Management Computer (DMC) - Acquisition/Interface
-
The purpose of this document is to give the detailed characteristics of all the Input/Output signals of the DMCs. This document does not deal with the DMC/DU connections (Ref. to 31-63-00).
31-63-00 Display Management Computer (DMC)/Display Unit
-
The purpose of this document is to give the detailed description of the DMC/DU, the Inputs/Outputs of the DUs and the DMC/DU interconnection.
31-64-00 Primary Flight Display (PFD)
-
The purpose of this document is to give the detailed description of
the PFDs, the logics and the associated controls. 31-65-00 Navigation Display (ND)
-
The purpose of this document is to give the detailed description of
the NDs, the logics and the associated controls. 31-66-00 Engine/Warning Display (EWD)
-
The purpose of this document is to give the detailed description of
the EWD, the logics and the associated controls. 31-67-XX System Display (SD)
-
The purpose of this document is to give the detailed description of the SD, the reasons for the colors changes of the graphic symbols and parameters, the associated controls.
31-68-00 EIS switching
-
The purpose of this document is to give the detailed operation of the various switching possibilities (manual or automatic reconfiguration) and the associated DMC/DU connections.
31-69-00 EIS test/Built-In Test Equipment (BITE)
-
The purpose of this document is to give the description of the DMC BITE for maintenance purpose.
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2.
Component location
__________________ The 3 DMCs are mounted in the electronic rack of the avionics compartment. The six display units are mounted in the instrument panel of the cockpit. (Ref. Fig. 001)
3.
System description
__________________
The EIS display functions are performed by the 3 DMCs and the 6 DUs.
The DMCs receive data from different avionics systems in the aircraft,
decode them and process them in such a way so that the externally connected
full color DUs in the cockpit can use them to generate symbols and pictures
on their LCD displays.
In normal operation, each DMC, with respect to sensor and computer inputs,
acquires data/parameters through its ONSIDE sources to generate the
symbologies of the displays presented on its associated display units.
(Ref. Fig. 002)
The OFFSIDE sources and/or THIRD sources (if any) are redundancy information
sources.
In normal operation, each DMC drives the following display units:
-
the DMC 1 drives the CAPT PFD DU, the CAPT ND DU, the EWD and the SD
-
the DMC 2 drives the F/O PFD DU and the F/O ND DU
-
the DMC 3 is a hot spare
A.
DMC description The 3 DMCs are identical and interchangeable. The DMCs are able to perform the EFIS function or the ECAM function. Each DMC is independent from the other and has its own:
-power supply module
-acquisition modules
-processing channel.
B.
DU description The 6 DUs are identical and interchangeable. Each DU receives digital signals from its related DMC through an A629 Link and also through a particular bus (A453) for the weather radar link. These digital signals convey instructions and data corresponding to the displays to be presented on the DUs.
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EIS Component Location
Figure 001
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EIS General Block Diagram
Figure 002
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(1) DU description The 6 DUs are identical and interchangeable. Each DU receives digital signals from its related DMC through an A629 Link, and also through a particular bus (A453) for the weather radar link. These digital signals convey instructions and data corresponding to the displays to be presented on the DUs.
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C. DMC Technical Data
(1)
Housing
-size: 6 MCU
-color: brown.
-
Number of boards:
on the face, 5 boards
on the back, 1 mother boards and protection boards.
-
Number of connectors:
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