Garmin GTN 625 Installation Manual - page 40
of
254
GTN 625/635/650 TSO Installation Manual
190-01004-02
Page 1-22
Rev. F
Table 1-9. System Functions
System Function
DO-178B
Level
Operating System
B
Touchscreen Display and Control
B
GPS/SBAS Navigation Information and CDI/VDI Output
B
VHF DME Navigation Information and VHF CDI/VDI Output
B
VHF Communication
B
Display of VOR/LOC/Glideslope information
B
Roll Steering Command Output
C
HTAWS
C
TAWS (Class B) Functionality
C
Display of terrain and moving map
B
Display of flight plan information
B
Display of traffic (TIS/TAS/TCAS I) data
D
Control and display of ADS-B traffic data
C
Display of data from passive lightning detection equipment, XM weather and audio
entertainment data.
C
Remote Transponder Communication
C
HSDB Data Forwarding
B