T-45C TS, ADV & IUT ENG-21
CNI System
d.
Logic that enables and controls selection and
display of remote RT frequencies to both
cockpits
e.
COMM control panel selects audio inputs to
headset
f.
Transmits UHF/VHF radio signals
B.
COMM control panel/intercom system (ICS): The ICS
provides communications between cockpits and, when
on deck, with the ground crew. It also generates the
warning and caution tones initiated by the centralized
warning system (CWS) when a malfunction or aircraft
configuration problem occurs
COMM 1
COMM 2
VOR/ILS/
TACAN
RECEIVER
RECEIVER
MARKER BEACON
RECEIVER
TRANSMITTER
RECEIVER
FWD CONT
FWD CONT
FWD CONT
FWD CONT
CWS
PANEL
PANEL
PANEL
PANEL
AFT CONT
AFT CONT
AFT CONT
AFT CONT
RADAR
PANEL
PANEL
PANEL
PANEL
ALT
COMMUNICATION AMPLIFIER
AFT PILOT'S
FWD COMM
AFT COMM
FWD PILOT'S
GROUNDCREW
CONT PNL
JACK
SERV PNL
SERV PNL
CONT PNL
IFF
GROUNDCREW
FWD HEADSET
AFT HEADSET
FWD MIC
AFT MIC
HEADSET
CONT PNL
SWITCH
SWITCH
Figure 11: COMMUNICATIONS AMPLIFIER BLOCK DIAGRAM
1.
Intercom system
Sg 2, fr 10
a.
Allows communication between cockpits and
Fig 11: Communica-
between cockpits and ground-handling via
tions Amplifier Block
intercom receptacle in nose wheelwell
Diagram
b.
Generates seven different tones in response
to inputs from various systems, including the
TONE TEST switch
Page 21-19
(9-98) Original
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