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____________________________________________________________________
Cirrus Perspective™ Line Maintenance Manual
Page 2-3
190-00920-00
Rev.
E
2.3
GMA
347
AUDIO
PANEL
Figure
2
‐
3.
GMA
347
Audio
Panel
The
Garmin
GMA
347
is
a
horizontally
oriented
panel
‐
mounted
audio
control
panel
and
marker
beacon
system.
The
GMA
347
is
FAA
TSO
Authorized
to
C50c,
and
C35d
Class
A.
Warning
and
alert
audio
provided
by
the
GMA
347
is
received
from
the
GIA
63W
Integrated
Avionics
Units
(IAUs).
The
GMA
347
communicates
with
both
GIA
63W
LRUs
using
RS
‐
232.
Software
and
configuration
settings
are
received
through
a
RS
‐
232
digital
interface
with
the
GIA
63W.
2.4
GIA
63W
INTEGRATED
AVIONICS
UNIT
(IAU)
(WAAS
Enabled)
Figure
2
‐
4.
GIA
63W
Integrated
Avionics
Unit
The
GIA
63W
is
the
central
‘Integrated
Avionics
Unit’
(IAU)
in
the
Perspective™
system,
linking
all
LRUs
to
the
PFD
and
MFD.
The
GIA
63W
contains
the
following
hardware:
•
MAIN1
–
contains
all
processor
circuitry,
digital
I/O,
3.3V
power
supply,
and
the
COM
power
supply.
The
COM
and
WAAS
Module
plug
directly
onto
the
MAIN1
board.
•
COM
–
16W
communications
transceiver.
•
GPS
‐
WAAS
Module.
•
MAIN2
–
contains
all
analog
and
unique
I/O,
a
power
supply
for
the
synchro
outputs,
and
the
MAIN1
power
supply
with
capacitor
backup.
The
NAV
receiver
plugs
directly
onto
the
MAIN2
board.
•
NAV
receiver
–
VOR/LOC
(VLOC)
and
Glideslope
receivers.