Component Location
Figure 001
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B. Inputs from other Systems The DIU receives data from the connected other aircraft system units:
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the Air Data Computer (ADC) of the ADIRS
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the Inertial Reference System (IRS) of the ADIRS
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the Flight Management and Guidance Computer (FMGC)
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the Centralized Fault Display Interface Unit (CFDIU).
The ADC sends the subsequent data:
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label 203, altitude
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label 204, baro corrected altitude
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label 205, mach number
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label 210, true air speed
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label 213, static air temperature
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label 215, impact pressure
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label 246, corrected static pressure.
The IRS sends the subsequent data:
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label 314, true heading
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label 321, drift angle
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label 322, flight path
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label 333, body normal acceleration
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label 361, intertial altitude.
The FMGC sends the subsequent data:
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label 001, distance to go
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label 002, time to go
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label 012, ground speed
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label 075, aircraft gross weight
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label 252, remaining time to destination
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label 253, remaining time to top of climb
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label 254, remaining time to top of descend
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label 255, next cruise flight
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label 260, date
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label 310, aircraft present position latitude
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label 311, aircraft present position longitude
The CFDIU sends the subsequent data:
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label 040, city pair
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label 125, GMT
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label 126, flight phase
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label 233, flight number
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label 260, date
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label 301, aircraft identification.
C. System Output (Ref. Fig. 002, 003) The subsequent information can be selected and shown to the passengers:
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the airline logo or other symbols
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the present aircraft ground speed
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the time required to reach the destination
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Flight Information
Figure 002
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Flight Maps
Figure 003
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the present flight altitude
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the outside air temperature
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the local time at the destination airport
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the enroute wind conditions
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the aircraft planned flight route on a map
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the flight route already completed on differently scaled maps
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the present aircraft position on differently scaled maps
-special points of interest along the flight path on a map.
4.
Power Supply
____________ (Ref. Fig. 004) The PVIS is supplied with 28VDC from the normal busbar 602PP. The system circuit breaker 189MH has the label PES/PVIS and protects the system for a current up to 5A. It is installed on the circuit breaker panel 2000VU near the FWD purser station.
5.
Interface
_________ The junction box 9MH is the interface unit to the PES (video) for the PVIS output signals and control data. It also supplies the connections for the power supply of the RCU. The junction box 9MH is a unit of the PES (video) (Ref. 23-36-00) and is installed in the video control center. The DIU is connected directly to the related systems through ARINC 429 buses for its digital input data communication.
6.
Component Description
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A. The Remote Control Unit (Ref. Fig. 005) The RCU is the input device for the PVIS. Its front plate has four P/BSW in line under a LCD for control.
The LCD has a matrix of 20 characters on each of the 4 lines for indication. The colour of the characters is dark blue against a yellow-green background. The background is backlit.
The 4 P/BSW are membrane switches. The cabin crew uses them for the selection of the menus in the system. The indicated menu on the LCD helps to find the the correct sub-menu. The subsequent main menus are available:
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