190-01007-01
GTN 725/750 Maintenance Manual
Rev. 5
Page 2-2
2.1 Unit Interfaces
The GTN 725/750 interfaces with other avionics units through the rear connectors shown in figure 2-2.
Figure 2-3 shows a summary of GTN 725/750 external signal and power interfaces. Note that COM and
NAV boards are present only in the GTN 750.
J1001
J1002
J1003
J1004
J1008
J1007
I/O
MAIN
NAV
(GTN 750 only)
COM
(GTN 750 only)
J1006
GPS
J1005
Figure 2-2 GTN 725/750 Rear Connectors
(GTN 750 Shown)
NOTE
COM and NAV boards are not present in the GTN 725. COM and NAV board rear
connector positions on the GTN 725 are covered by blank-out plates.
