User Guide

190-00494-00 Rev. B
Garmin G1000 Pilot’s Guide for the Cessna Citation Mustang
1-5
SYSTEM OVERVIEW
• 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 (2), GSA 81 (2), and GSM 85A (4) – The GSA 80 servos are used for the automatic control of roll and
yaw, while the GSA 81 servos are used for the automatic control of pitch and pitch trim. These units interface
with each GIA 63W.
The GSM 85A servo mount is responsible for transferring the output torque of the GSA 80/81 servo actuator to
the mechanical flight-control surface linkage.
• GA 56A (1) and GA 57 (1) – The GA 56A is a through-mount GPS/WAAS antenna. The GA 57 is a through-
mount GPS/WAAS antenna with XM/Data Link.
GA 56A GA 57