____________________________________________________________________
Page 2-8
Cirrus Perspective™ Line Maintenance Manual
Rev. E
190-00920-00
2.11.3
GSM
85A
Servo
Gear
Box
The
GSM
85A
Servo
Gear
Box
is
used
with
a
Garmin
GSA
80
or
GSA
81
(GSA
8X)
servo
actuator
to
control
one
axis
of
flight
control,
or
its
associated
trim,
as
part
of
the
GFC
700
flight
control
system.
It
connects
directly
into
the
flight
control
system
via
cables,
chains,
push
rods,
or
other
means
and
transmits
the
power
from
the
motor
in
the
servo
actuator
to
the
flight
controls,
when
engaged.
The
GSM
85A
is
a
mechanical
appliance
with
no
software
of
electronic
hardware.
2.12
GTP
59
OAT
PROBE
Figure
2
‐
13.
GTP
59
OAT
Probe
The
GTP
59
OAT
Probe
provides
outside
air
temperature
measurements
which
are
used
by
the
GDC
74A.
The
GTP
59
communicates
to
the
system
through
the
GDC
74A/B.
2.13
GCU
478
REMOTE
CONTROLLER
Figure
2
‐
14.
GCU
478
Control
Unit
The
GCU
478
provides
certain
redundant
control
features
and
is
the
control
for
HDG,
CRS,
and
ALT
SEL.
Summary of Contents for Cirrus Perspective SR20
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