Airbus
Iridium
SATCOM
System
L
‐
3
Aviation
Recorders
Proprietary
165E5733
‐
01
Rev.
02
7
March
2014
Page
2
SECTION 1 ‐ OVERVIEW
1.
Airbus
Iridium
SATCOM
System
Overview
The
Airbus
Iridium
SATCOM
System
will
be
certified
to
TSO
C
‐
159a
for
voice
and
data
safety
‐
services.
It
has
a
dual
‐
channel
Iridium
link,
one
dedicated
for
data
‐
with
the
capability
to
send
and
receive
standard
ACARS
messages
between
the
aircraft’s
Air
Traffic
Service
Unit
(ATSU),
and
the
other
prioritized
for
voice
via
a
certified
terrestrial
service
provider.
The
Automated
Flight
Information
Reporting
System
(AFIRS)
provides
a
satellite
voice
and
data
communications
(SATCOM)
link
with
the
Public
Switched
Telephone
Network
(PSTN)
via
the
Iridium
®
satellite
network.
The
system
uses
a
standard
ARINC
741/761
SATCOM
interface
to
the
flight
crew’s
Audio
Integrating
System
and
ARINC
739A
Multi
‐
Purpose
Control
and
Display
Units
(MCDUs)
in
the
cockpit,
as
well
as
providing
3
‐
extension
Public
Branch
Exchange
(PBX)
capability
for
up
to
2
handsets
in
the
cabin.
