Garmin G5 Installation Manual page 21

1.6.2.5 Backup Attitude Indicator
All of the functions listed in 1.6.1 are also available by selecting the G5 HSI Menu via the knob and
selecting PFD.
1.6.2.6 G5 DG/HSI Interface Summary
•
Aircraft Power and Ground
•
Aircraft Pitot/Static
•
GPS Coax connection
•
One RS-232 connection
•
One CAN bus connection
•
Standby battery (optional)
1.6.2.7 G5 DG/HSI Power and Ground Interface Summary
The G5 uses 14VDC or 28VDC power and aircraft ground. Reference Section 5 for wiring details.
1.6.2.8 G5 DG/HSI Pitot/Static Interface Summary
The G5 requires pitot and static inputs for the backup altitude and airspeed functions. Reference Section
4.1.5.
1.6.2.9 G5 DG/HSI RS-232 Interface Summary
The G5 DG/HSI can utilize RS-232 connections when available to receive
•
GPS data for aiding.
•
VHF navigation information, both lateral and vertical.
For specific configuration settings for RS-232 refer to Section 5.
If an existing connection is made to the RS-232 port, the G5 connection can be spliced into the existing
wiring at the connector. For specific wiring information, refer to Section 5.
1.6.2.10 G5 DG/HSI CAN Bus Interface Summary
The G5 DG/HSI can utilize CAN bus connections when specified by a specific equipment configuration
to allow heading information from the GMU 11, communication of navigation data from the GAD
29/29B, communication between the G5 Attitude instrument and the G5 HSI, and communication of
OAT information from the GAD 13.
For specific wiring information, refer to Section 5.
1.6.2.11 Standby Battery
The standby battery is optional for the DG/HSI installation. The G5 has an externally mounted lithium –
ion battery that sustains the G5 flight display with up to 4 hours of emergency power.
GMU 11 Magnetometer
1.6.3
The Garmin GMU 11 Magnetometer is a remote mounted device that interfaces with a Garmin G5 to
provide heading data to the G5 Attitude and/or G5 DG/HSI. The Garmin G5 and GMU 11 magnetometer
Garmin G5 Electronic Flight Instrument Part 23 AML STC Installation Manual
Page 21
190-01112-10
Rev. 21