Table 5-8 Garmin Gfc 500 Autopilot Configuration; Table 5-9 Garmin Gfc 600 Autopilot Configuration; Table 5-10 Bendix M-4C/M-4D Autopilot Configuration - Garmin GI 275 Installation Manual

5.4.9.1 Garmin
Garmin autopilots can interface to a GI 275 ADAHRS unit; a GI 275 ADAHRS+AP unit is not required.
Autopilot Interface
GFC 500 GFC 500
Notes:
[1] Refer to GFC 500 STC SA01866WI for interface approval with the GI 275. If two GI 275s
are both interfaced to a GFC 500, both units must configure the Autopilot interface to
GFC 500. The second unit will default as "Backup 1".

Table 5-9 Garmin GFC 600 Autopilot Configuration

Autopilot Interface
GFC 600 GFC 600
Notes:
When a GFC 600 is installed, configure all GI 275s in the system to GFC 600.
5.4.9.2 Bendix
The autopilot computer must be configured for a Collins PN-101 (FD-112C/V) HSI in order to have the
correct heading and course error (datum) signals; otherwise, additional adjustments will be required. Refer
to Bendix I.B. 20004 M-4D AFCS Installation Manual Section II, paragraph 7, Flight Check and
Calibration, for adjustments that can be made in the 5487G or 5485A flight controller. Refer to Bendix I.B.
20004 Section II, paragraph 5, Post Installation Check-Out, for additional information.

Table 5-10 Bendix M-4C/M-4D Autopilot Configuration

Autopilot Interface
Bendix Bendix
M-4C/M-4D M-4C/M-4D
Notes:
[1] For Bendix M-4C, set to None.
[2] For Bendix M-4D, set to Bendix DH-841.
190-02246-10
Rev. 11

Table 5-8 Garmin GFC 500 Autopilot Configuration

Ports/Config - Settings
AUTOPILOT
Settings
Pitch + Roll
GFC 500 OUT
A429
Ports/Config - Settings
AUTOPILOT
Ports/Config - Settings
HSI Type
Flight
Director
DH-841 [2]
GPSS
ILS/GPS
Approach
Value / Port Numbers
GFC 500
Roll Only
1 Thru 2
EFIS IN 1 Thru 4
NAV IN 1 Thru 4
GFC 600
Collins PN 101
None [1]
Bendix
FD Discrete
Enabled
Other GI 275
Button Scaler to HDG
GPSS Discrete
Discrete
Scaler to HDG
Discrete Out Lo
GI 275 Part 23 AML STC Installation Manual
Speed
Low
Low
Low
Value / Port Numbers
Value / Port Numbers
1.0
Discrete In 1 Thru 6
1.0
4 Thru 9
Page 5-18
Notes
[1]
Notes
[1]