P/N 13772-141 17 of 20
Cirrus Design Section 9
SR22 / SR22T Supplements
ALT SEL - Altitude Select Knob
The ALT knob controls the Selected Altitude, which is used as the
reference for the altitude alerter and the altitude capture function.
Pushing the ALT SEL knob synchronizes the selected altitude to the
displayed altitude to the nearest 10 ft.
Turn Coordinator
The electric turn coordinator, installed behind the RH bolster panel,
provides roll data to the Programmer/Computer. Roll rate is sensed by
a single-gimbal, electric-powered gyro.
28 VDC for Turn Coordinator operation is supplied through the 5-amp
KEYPADS / AP CTRL circuit breaker on MAIN BUS 1.
Altitude Transducer
The altitude transducer, installed behind the bolster panel and
plumbing directly into the Pitot Static system provides altitude
information to the Programmer/Computer.
#2 Integrated Avionics Units
The #2 Integrated Avionics Unit located behind the MFD and
instrument panel, functions as the main communication hub to the
Avionics System and Programmer / Computer, linking the systems to
the PFD and MFD displays. The Integrated Avionics Unit receives air
and attitude data parameters from the Air Data Computer and Attitude
and Heading Reference System. The Integrated Avionics Unit
contains a GPS WAAS receiver, VHF COM/NAV/GS receivers, and
system integration microprocessors.
28 VDC for #2 Integrated Avionics Unit operation is supplied through
the 7.5-amp COM 2 and 5-amp GPS NAV GIA2 circuit breakers on the
MAIN BUS 2.
Revision 01: 01-06-10
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