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A PA ALL IN USE indication appears on all Attendant
Indication Panels.
The fastest way to make a Passenger Announcement from
the cockpit is, to pick up the handset, push the PTT
switch and talk.
TMUCI2O03-T01 LEVEL 3
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TMUCI2O03-P01 LEVEL 3
PASSENGER ADDRESS SYSTEM OPERATION -
PASSENGER ANNOUNCEMENT FROM COCKPIT (HANDSET)
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PASSENGER ADDRESS SYSTEM OPERATION
PASSENGER ANNOUNCEMENT FROM COCKPIT
HANDMIC
To select an announcement using the handmic, the PA
transmission key located on the Audio Control Panel
must be pressed and held. It comes on green and connects
the microphone audio to the Passenger Address system.
Then, pressing the Push To Talk switch on the mic,
keys the Passenger Address system with audio and
broadcasts the speech through the cabin loudspeakers.
To get the sidetone and to control the volume, when
using the headset, the PA reception knob must be
pressed and released. It comes on white.
A "PA ALL IN USE" indication appears on all Attendant
Indication Panels.
BOOMSET/OXYGEN MASK
To make an announcement using the boomset or the oxygen
mask, the PA transmission key must be pressed and held.
It comes on green.
To switch on the Passenger Address sidetone, the PA
reception knob must be pressed and released. It comes
on white and controls the sidetone volume.
A "PA ALL IN USE" indication appears on all Attendant
Indication Panels.
TMUCI2O03-T02 LEVEL 3
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PASSENGER ADDRESS SYSTEM OPERATION -
PASSENGER ANNOUNCEMENT FROM COCKPIT (HANDMIC - BOOMSET/OXYGEN MASK)
TMUCI2O03-P02 LEVEL 3
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PASSENGER ADDRESS SYSTEM OPERATION
PASSENGER ANNOUNCEMENT FROM CABIN
The cabin can be split into a maximum of three cabin
zones, depending on the airline options. This
information is stored in the CAM. The Director uses
it to identify the commands received from the cabin
attendant handsets and to transmit the passenger
announcements to the relevant cabin zone.
An attendant handset is mounted at each attendant
station. An AIP is installed near each handset for
display of PA-use information. When the handset is
lifted, a dialing tone (440 Hz) is heard. The top line
of the AIP displays a sharp # symbol.
When you press the "PA ALL" key, a confirmation message
is displayed on the AIP.
If the PA call is impossible due to the priority of a
call already in progress, then the word BUSY appears
on the AIP display.
To press the keypad RESET key always clears any handset
operation and lets you make a new key selection.
The numbers of all selectable PA zones and the
respective keypad keys, are stored in the CAM. The CAM
also contains a priority list which establishes if an
announcement can be broadcast.
Once a PA call is established, the respective PA IN
USE message is displayed on the bottom line of all
AIPs. Cockpit PA IN USE indicator, located on the CALLS
PANEL is provided as an option. The PTT switch keys
the PA system. Sidetone audio is fed to the handset
earpiece.
When the PA announcement is over, you can disconnect
the handset from the PA system as follows:
- put the handset into the cradle or,
- press the RESET button.
TMUCI2O03-T03 LEVEL 3
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PASSENGER ADDRESS SYSTEM OPERATION -
PASSENGER ANNOUNCEMENT FROM THE CABIN
TMUCI2O03-P03 LEVEL 3
EFFECTIVITY 23-73-00 Page 7
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_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 23 COMMUNICATIONS
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ALL
TMUCI2O03-P04 LEVEL 3
PASSENGER ADDRESS SYSTEM OPERATION
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