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EFFECTIVITY 23-73-00 Page 8
Apr 30/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 23 COMMUNICATIONS
UF94200
EFFECTIVITY Page 268
ALL
23 - COMMUNICATIONS
23-73-00 CABIN INTERPHONE SYSTEM D/O
CONTENTS:
General
System Description
Priority
Call From the Cabin
Call From the Cockpit
All Attendant Call
Emergency Call
Call Indications
Options
TMUCI2Q03 LEVEL 3
EFFECTIVITY 23-73-00 Page 1
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_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 23 COMMUNICATIONS
UF94200
EFFECTIVITY Page 269
ALL
CABIN INTERPHONE SYSTEM D/O
GENERAL
The cabin and cockpit interphone system enables
telephone communications between the attendant
stations and, between the attendant stations and the
cockpit.
A communication is always initiated by a dial procedure
with the ATTENDANT HANDSET or by pushbuttons on the
CALLS panel in the cockpit.
SYSTEM DESCRIPTION
The CIDS director accepts audio signals from the
various interphone sources in the aircraft and assigns
priorities to each source. The director performs
telephone exchange switching and call functions from
cockpit call switch settings or the attendant handset
keypad entries.
All this is done with reference to the parameters
defined in the Cabin Assignment Module (CAM). Chimes
are transmitted via the top line data bus and the
Passenger Address loudspeakers. In the cockpit, the
green bars on the ATT transmission key on the Audio
Call Panel annunciate interphone calls. In the cabin,
the Area Call Panels (ACP) and Attendant Indication
Panels (AIP) are used for annunciation.
PRIORITY
All communication modes are handled with respect to
the predefined priorities listed below :
- 1, Emergency call.
- 2, Call from cockpit including an all call from
cockpit, and a normal call from cockpit.
- 3, All call from cabin station.
- 4, Normal call from cabin station.
Additionally, all interphone sources have interrelated
priorities, as assigned in the CAM.
If more than one interphone source requests the same
communication mode, the source with the higher priority
will have preference.
If they have the same priority, the interphone source
which was dialed first will be given preference.
TMUCI2Q03-T01 LEVEL 3
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_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 23 COMMUNICATIONS
UF94200
EFFECTIVITY Page 270
ALL
TMUCI2Q03-P01 LEVEL 3
CABIN INTERPHONE SYSTEM D/O
EFFECTIVITY 23-73-00 Page 3
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_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 23 COMMUNICATIONS
UF94200
EFFECTIVITY Page 271
ALL
CABIN INTERPHONE SYSTEM D/O
CALL FROM THE CABIN
Interphone communications are performed with the
attendant station handsets which are connected to the
type B DEUs.
To initiate a call, take the handset off the hook and
then select the pushbutton on the keyboard.
When the communication link is established, all the
visual indications in the cabin are reset when the
cabin handset is taken off its hook.
All attendant stations in the cabin are equipped with
a reset key to reset the interphone function, and
permits a new dial procedure.
CALL FROM THE COCKPIT
Calls from the cockpit are initiated from the call
panel which is connected to the directors.
Connection of the cockpit to the cabin interphone
system is performed using the CAB key and knob on the
Audio Control Panels (ACPs).
The call pushbuttons on the CALL panel enable the crew
to select the attendant station.
ALL ATTENDANT CALL (CONFERENCE CALL)
The conference mode enables communication between more
than two interphone sources.
Call From Cockpit :
When an "ALL ATTENDANT CALL" communication mode is
selected from the cockpit, all the called stations are
switched to a common link to the calling station
(including cockpit).
In the cockpit, the "ALL" pushbutton on the CALL panel
must be pressed.
Call From Cabin :
When an "ALL ATTENDANT CALL" communication is selected
from the cabin, all the called stations are switched
to a common link to the calling station except the
cockpit.
In the cabin, on the handset keyboard, the "ALL ATTND"
key must be pressed.
TMUCI2Q03-T01 LEVEL 3
EFFECTIVITY 23-73-00 Page 4
Apr 30/00
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ATA 23 COMMUNICATIONS(38)
