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INTERPHONE
The flight interphone function allows interpone links
between the various crew stations in the cockpit and
with the groud crew through the jack at the external
power receptacle panel (108 VU) and the avionics
compartment jack panel (63 VU).
SELCAL
The Selective Calling system enables reception with
aural and visual indication of calls from ground
stations equipped with a coding device
NOTE: The SELCAL decoding unit is located inside the
AMU.
CALLS
Cabin attendant and mechanic calls are indicated on
the Audio Control Panels.
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ALL
AUDIO SYSTEM PRESENTATION
TMUCOMH02-P01 LEVEL 1
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SELF EXAMINATION
What is the function of the AMU?
A - It monitors the radio frequency
selection.
B - It integrates all the crew communication
functions.
C - It monitors the NAV frequency selection.
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23 - COMMUNICATIONS
23-51-00 AUDIO CONTROL PANEL PRESENTATION
CONTENTS:
General
Transmission Keys
Reception Knob
Interphone/Radio Selector Switch
Voice Filter
Reset
Passenger Address
Self Examination
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AUDIO CONTROL PANEL PRESENTATION
GENERAL
3 Audio Control Panels (ACPs) are provided in the
cockpit for the Captain, the First Officer and the
third occupant.
Each ACP allows:
- the use of various radio communication and
radio navigation facilities installed in the
aircraft for transmission and reception of the
audio signals,
- the display of various calls received through
the SELCAL system, from ground mechanics and
from cabin attendants,
- the use of flight, cabin and service interphone
systems.
TRANSMISSION KEYS
Eight rectangular electronic keys are used for the
selection of the transmission channel and for the
display of various calls received through SELCAL
system, from ground mechanics and from cabin
attendants.
MECH light on the INTerphone key flashes amber to
indicate a ground mechanic call.
ATT light on the CABin key flashes amber to indicate
a cabin attendant call.
NOTE: Only one transmission channel can be selected
at a time.
RECEPTION KNOB
Fifteen pushbutton knobs are used to select reception
and to adjust the volume of received signals.
When the reception channel is selected, the pushbutton
knob pops out and comes on white.
INTERPHONE/RADIO SELECTOR SWITCH
The INTerphone/RADio selector switch permits the
utilization of the interphone or the radio, when the
boomsets or oxygen masks are used by the crew.
The INT position allows direct flight interphone
transmission:
- whatever the transmission key selected and
provided no Push-To-Talk switch is activated,
- when no transmission key is selected.
The neutral position allows reception only.
The RAD position is used as a Push-To-Talk switch when
a transmission key is selected.
VOICE FILTER
A voice filter can be used on the ADF and VOR channels.
When used, the identification signals transmitted by
the navaids are greatly attenuated (32 dB) so as to
hear only voice signals.
ON comes on green when the voice filter is in service
(ON VOICE key pressed in).
TMUCOMI01-T01 LEVEL 1
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_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 23 COMMUNICATIONS
UF94200
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ALL
AUDIO CONTROL PANEL PRESENTATION
TMUCOMI01-P01 LEVEL 1
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_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 23 COMMUNICATIONS
UF94200
EFFECTIVITY Page 37
ALL
AUDIO CONTROL PANEL PRESENTATION
RESET
The RESET key is used to cancel all the lighted calls.
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ATA 23 COMMUNICATIONS(7)
