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 TM 9-1270-219-13&P
Function
Pin No.
Nomenclature
EPU 17
EPU 25
28 Vdc
EPU 26
H e l i c o p t e r 28 Vdc Supply
EPU 34
28 Vdc Return
EPU 35
EPU 43
EPU 1
RDR ALT Signal
Radar Altitude Signal
EPU 5
Radar Altitude Signal Return
RDR ALT Return
EPU 54
Radar Altitude Status Signal
RDR ALT Reliability
Signal
EPU 55
R a d a r Altitude Status Return
RDR ALT Reliability
Return
AADS Heater Line
H e l i c o p t e r 115 Vdc Supply
AADS 12
AADS Heater Neutral
Airspeed and Direction Sensor (18A2J1).
J5 Pin
J5 Pin
Signal
Signal
AADS
HTR
LINE
16
ALPHA
RTN
12
6
AADS HTR NEUT
Sin (Alpha-Beta) Signal
9
1
AADS REF SIG
5
Cos
(Alpha-Beta)
Signal
AADS REF RTN
17
2
ALPHA-BETA RTN
3
22
ATS H
SIN ALPHA SIG
15
4
ATS L
COS ALPHA SIG
Electronics Processor Unit (18A1J1).
J4 Pin
J4 Pin
Signal
Signal
49
AADS REF SIG
DATA
RDY
BAR
62
AADS REF RTN
50
28
LAI+15V
SIN ALPHA SIG
30
37
LAI-15V
COS ALPHA SIG
31
64
ADS FLR BAR
39
ALPHA
RETURN
12
V uSIG
13
V uR T N
32
SlN
(ALPHA-BETA)
SIG
33
COS (ALPHA-BETA) SIG
V VS I G
2
41
V VR T N
3
(ALPHA-BETA)
RTN
4
ATS H
14
SIG
V
w
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