31-CONTENTS Page 57 Aug 01/05
CES INDICATING/RECORDING SYSTEMS - GENERAL - DESCRIPTION AND OPERATION
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1. General
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This chapter covers the five main subjects:
-Independent instruments (Ref. 31-21-00)
-Centralized fault display system (Ref. 31-30-00)
-Recording system (Ref. 31-30-00).
-Electronic Instrument System (EIS) (Ref. 31-60-00) including Electronic Flight Instrument System (EFIS) and Electronic Centralized Aircraft Monitor (ECAM) (Ref. 31-50-00).
2. Description and Operation
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R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
A. Instruments and Panels
(1) Panels The aircraft is certificated to be operated by two crew members (two pilots). An observer seat is installed aft of the pedestal offering maximum visibility over all panels. Six Cathode Ray Tube (CRT) display units providing high level of flexibility in presentation of information are used for the main display functions i.e. flight guidance, navigation, engines and aircraft systems monitoring. They are 7.25" X 7.25" full color, all interchangeable. Conventional electromechanical instruments are also used to provide mainly back-up information. The Captain's and First Officer's panels are dedicated to flight guidance and navigation information and comprise two CRT display units each, one Primary Flight Display (PFD) and one Navigation Display (ND). These two displays units are installed side by side. The center instrument panel is dedicated to :
-aircraft monitoring comprising two CRT display units, upper ECAM display unit for essential engine parameters, flap/slat position indication, fuel on board and Memo/Warning display and lower ECAM display unit for System/Status display.
-standby instruments
-landing gear control.
The overhead panel is dedicated to aircraft system controls.
The center pedestal provides
-multifunction control and display units (MCDU) for navigation, AIDS and maintenance controls.
-controls for engines, flap/slat, speed brake and trims.
-radio management, ECAM, weather radar controls.
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A. Instruments and Panels
(1) Panels Six Liquid Crystal Display units (LCDU725) are a part of the Electronic Instrument System (EIS). The main function of the equipment is to display all the parameters used for flight control, navigation and monitoring of the engine and system parameters. The useful image size is 6.25" X 6.25". The Captain's and First Officer's panels are dedicated to flight guidance and navigation information and comprise two LCD units each, one Primary Flight Display (PFD) and one Navigation Display (ND). These two displays units are installed side by side. The center instrument panel is dedicated to :
-aircraft monitoring comprising two LCD units, upper ECAM display unit for essential engine parameters, flap/slat position indication, fuel on board and Memo/Warning display and lower ECAM display unit for System/Status display.
-standby instruments
-landing gear control.
The overhead panel is dedicated to aircraft system controls.
The center pedestal provides
-multifunction control and display units (MCDU) for navigation, AIDS and maintenance controls.
-controls for engines, flap/slat, speed brake and trims.
-radio management, ECAM, weather radar controls.
**ON A/C ALL
(2) Independent instruments
(a) Electrical clock (Ref. 31-21-00) (Ref. Fig. 001) A unique clock is installed on the main instrument panel. This clock provides the primary time base installed in the aircraft. The UTC and date generation is transmitted to FMGC 1 and 2, FDIU and CFDIU. In case of failure of the clock, CFDIU provides back-up for UTC with updating through MCDUs. The clock also provides :
-elapsed time function
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Indicating/Recording System - Electrical Clock
Figure 001
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1CES 1
-back-up chronometer function with local control. (The primary chronometer function is performed by EIS on each ND with remote controls for CAPT and F/O).
B. Centralized Fault Display System (Ref. 31-30-00) (Ref. Fig. 002) This system provides a central maintenance aid which allows from the cockpit to extract the maintenance information and to initiate the various maintenance tests, at system or subsystem level. It comprises : One Centralized Fault Display Interface Unit (CFDIU) installed in the electronics rack which receives from the system bites all the maintenace data in a form directly meaningful. The CFDIU is controlled from the two Multipurpose Control and Display Units (MCDU) (see ATA 22-82-00) to display BITE data results from the system and initiate maintenance tests. The CFDIU also provides back-up time base for UTC to cover the loss of the main time base provided by the clock. Optional features are available :
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