Garmin Aera 760 Pilot's Manual page 214

Appendix D
Configuring aera for a GDL 39:
1) The GDL 39/39R may be connected to either serial (RS-232) port on the
aera 760.
2) From the Main Menu, touch Tools > Setup > Interface.
3) Touch the 'Serial Data Format' field. A vertical list is displayed.
4) Touch 'Garmin Data Transfer'. Garmin Data Transfer is only available on
Serial Port 1.
5) From the Main Menu, touch Tools > Data Link to view GDL 39
connection status.
CAUTION: Never remove power from the aera or GDL 39 during a software
update. Anytime the aera software is updated it may also contain firmware
updates for products such as the GDL 39. The aera software will update first,
after the unit reboots it will update the firmware of a connected GDL 39. You
can view the GDL 39 update progress on the Data Link Information Page.
To aera
760
Mount
Connection
TX1 (Data Out) from
aera
RX1 (Data In) into aera
198
001-03854-91
GDL 39 Power/Data Cable to aera
aera Bare Wire Color
TX1 Blue Wire
RX1 Yellow Wire
aera Aviation Bare Wire Connections to GDL 39
Garmin aera 760 Pilot's Guide
To GDL 39 Data/
Power Port
Power Connector
GDL 39 Bare Wire Color
White/Green Wire
Green Wire
190-02674-00 Rev. B