Garmin G1000:Beechcraft Baron 58/G58 User Manual page 17

• GCU 475 (1) – Provides the Flight Management System (FMS) controls for the MFD through an RS-232 digital
interface.
• GMC 710 (1) – Provides the controls for the GFC 700 AFCS through an RS-232 digital interface allowing
communication with both PFDs.
• GTP 59 (2) – Provides Outside Air Temperature (OAT) data to the on-side GDC 74B.
• GSA 80 (3), GSA 81 (1), and GSM 85A (4) – The GSA 80 servos are used for the automatic control of roll,
pitch, and yaw, while the GSA 81 servo is used for the automatic control of pitch trim. These units interface
with each GIA 63W.
The GSM 85A servo gearbox is responsible for transferring the output torque of the GSA 80/81 servo actuator
to the mechanical flight-control surface linkage.
190-00663-00 Rev. A
Garmin G1000 Pilot's Guide for the Hawker Beechcraft C90A/GT
SYSTEM OVERVIEW
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