T-45C TS, ADV & IUT ENG-21
CNI System
4.
Aircraft interfaces--communication system 1.4.18.2
Sg 2, fr 8
Fig 10: CNI Input
Power Sources
28 VDC ESSENTIAL SERVICES
28 VDC GENERATOR
COMM AMPLIFIER A
COMM AMPLIFIER B
UHF/VHF #1
VOR/ILS/MB
DEU
UHF/VHF #2
TACAN
ALTIMETER ENCODER
TURN/SLIP
MFD, RIGHT
CWS
IFF
GINA
MFD, LEFT
115 VAC ESSENTIAL
115 VAC NON-ESSENTIAL
GINA
26 VAC ESSENTIAL
26 VAC NON-ESSENTIAL
TACAN
VOR/ILS/MB
Figure 10: CNI INPUT POWER SOURCES
a.
COMM 1 power
(1) 28 VDC essential bus: operating
(2) 28 VDC generator bus or 5 VAC non-
essential bus: lighting via INTERIOR
LIGHT DIMMING panel switch and MIP
dimmer
b.
COMM 2 power
(1) 28 VDC generator bus: operating
(2) 28 VDC generator bus or 28 VAC non-
essential bus: lighting via INTERIOR
LIGHT DIMMING lights panel switch and
MIP CONSOLE dimmer
c.
Receives RF through the COMM 1/COMM 2
Page 21-18
(9-98) Original
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