T-45A UJPT, E2-C2, ADV, & IUT Eng-21
CNI System
NOTE: The system initiates
an auto-test when lock-on is
broken. No. 2 pointer rotates
counterclockwise when
unlocked or fails test.
4.
Aircraft interfaces - TACAN system
a.
Power
(1) 28 VDC essential services bus:
TACAN RT, control panels,
COMM/NAV control transfer pan-
els, COMM control panels
(2) 28 VDC generator bus: HSI
(course synchro)
(3) 115 VAC essential services bus:
TACAN
(4) 26 VAC essential bus: TACAN RT,
control panels, HSI
b.
Inputs
(1) RF TACAN magnetic bearing and
distance measurement signals
(2) COMM/NAV control transfer panel
signals RT as to which cockpit has
control
c.
Outputs
Sg 3, fr 11
(1) TACAN TO/FROM information to
HSI
(2) TACAN course deviation informa-
tion (CDI) to HSI
(3) TACAN magnetic course/radial
information to HSI No. 2 pointer
TACAN OUTPUTS
(8-03) Original
Page 21-32
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