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PASSENGER VISUAL INFORMATION SYSTEM D/O - PASSENGER VIDEO INFORMATION SYSTEM SCREENS
TMU23EI02-P01 LEVEL 3
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PASSENGER VISUAL INFORMATION SYSTEM D/O
DIU
The PVIS comprises the Digital Interface Unit (DIU)
and the Remote Control Unit (RCU). The Digital
Interface Unit (DIU) is the PVIS main unit.
The Digital Interface Unit (DIU) is a computer. It is
connected to the aircraft avionics systems and to the
Passenger Entertainment System Video (PES Video).
The DIU interfaces with:
- The Air Data Inertial Reference System (ADIRS),
- The Flight Management and Guidance Computer
(FMGC),
- The Passenger Entertainment System Video (PES
Video),
- The Centralized Fault Display Interface Unit
(CFDIU).
The DIU processes all the information and selects the
appropriate maps and points of interest stored in its
memory.
The DIU is also connected to other systems:
- the Air Traffic Service Unit (ATSU),
- the Cabin Management System (CMS).
The DIU is supplied with 28 VDC.
The RCU is the input device for the PVIS.
The RCU front plate has four pushbutton switches and
an LCD character control screen.
ADIRS
The Air Data Inertial Reference System (ADIRS) is
connected to the DIU through two unidirectional ARINC
429 data buses.
- an ARINC 429 low speed data bus transmits the
actual air data,
- an ARINC 429 high speed data bus transmits the
inertial reference data.
FMGC
The Flight Management and Guidance Computer (FMGC) is
connected to the DIU through a unidirectional ARINC
429 data bus.
The FMGC sends data to the DIU. Certain parameters
requiring an input (destination, flight time,...) can
be entered either by the cabin staff or loaded from
FMGC.
CFDIU
The Centralized Fault Display Interface Unit (CFDIU)
is connected to the DIU through a unidirectional ARINC
429 low speed data bus.
ATSU
The Air Traffic Service Unit (ATSU) is connected to
the DIU through an ARINC 429 low speed data bus.
The ATSU allows connecting gate, arrival information,
messages and other data to be uplinked from ground
stations.
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PASSENGER VISUAL INFORMATION SYSTEM D/O - SCHEMATIC
TMU23EI02-P02 LEVEL 3
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PASSENGER VISUAL INFORMATION SYSTEM D/O
CMS
The Cabin Management System (CMS) is connected to the
DIU through a bidirectional ARINC 429 low speed data
bus.
The Cabin Management System (CMS) controls and monitors
the PVIS by means of the Cabin Management Terminal
(CMT).
OPERATION
The DIU reads data from the FMGC and the ADIRS through
ARINC 429 data buses. This information is processed,
formatted and transmitted as a video signal to the PES
Video.
The Video System Control Unit (VSCU) transmits this
information to the display units to be displayed.
BITE
A test is performed automatically at power up or
manually from the control unit.
The result of this test is transmitted to the Video
System Control Unit (VSCU).
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23 - COMMUNICATIONS
23-34-00 PASSENGER VISUAL INFORMATION
SYSTEM COMPONENTS
CONTENTS:
Digital Interface Unit
Remote Control Unit
TMU23EJ01 LEVEL 3
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_A319/A320/A321 TECHNICAL TRAINING MANUAL
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PASSENGER VISUAL INFORMATION SYSTEM COMPONENTS
DIGITAL INTERFACE UNIT
IDENTIFICATION
FIN: 190MH
LOCATION
ZONE: 120
TMU23EJ01-T01 LEVEL 3
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