Airbus A340 Series, Brochure

Page: 201 / 211

STL 472.502/90 Issue 6
A340 Radio Management and Communication
13.7
COMM - Audio system
The audio integrating system provides the management of
all audio signals produced, by feeding the radio
communications, radio navigation and interphone systems :
• Basic installation includes :
- Three Audio Control Panels (ACP) : Two on pedestal,
one on overhead panel ;
- One Audio Management Unit (AMU) in avionics bay ;
- One SELCAL code selector in avionics bay.
• Provision exists for supplementary ACPs.
• All selections and volume adjustments are carried out by
the crew through ACPs.
• All ACPs are fitted for maximum capacity (three VHF,
two HF, public address, calls, two VOR, two ADF, ILS
and provision for MLS).
• Each ACP and associated AMU electronic card are fully
independent and microprocessor-controlled.
• Optional: The Satellite Communication (SATCOM)
system allows the exchange of information between the
ground station and the aircraft (technical information,
voice transmission) via satellites.