T-45A UJPT, E2-C2, ADV, & IUT Eng-21
CNI System
(b) 28 VDC generator bus:
lighting via INTERIOR
LIGHTS DIMMING panel
switch and CONSOLE
dimmer
(c) 28 VDC essential bus: lighting
via emergency flood lights
(2) Receives audio from radio receiv-
ers
(3) Receives audio from ICS
(4) Receives VOR/ILS, TACAN, and
marker beacon identification audio
from respective receivers
(5) Receives sidetone from either
cockpit microphone and integrates
it with radio RTs as selected
(6) Receives inputs from the CWS to
generate warning/caution tones
b.
Outputs selected audio to headset and
allows for volume control
C.
COMM 1/COMM 2 radio system: The UHF/VHF
comm radio system provides air-to-air and air-
to-ground (line-of-sight) communications. The
system consists of two remote RTs (COMM 1,
COMM 2), four radio control panels (two in each
cockpit), and two UHF/VHF antennas
Sg 2, fr 6
1.
UHF/VHF control panels
a.
Controls operation of remote RT
b.
Allows pilots to select operational
frequencies of AM and FM signals in
UHF and VHF bands
UHF/VHF CONTROL PANEL
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