Garmin Aera 660 Pilot's Manual page 198

Appendix D
Configuring aera for a GDL 39:
1) Connect the aera to the GDL 39 through the Power/Data Cable.
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.
Mini-USB Connector to the
182
XM Receiver
GDL 39 Power/Data Cable to aera
Garmin aera 660 Pilot's Guide
To GDL 39 Power/
Data Port
190-02017-20 Rev. E