Bose A20 Aviation 소유자 매뉴얼 - 페이지 37
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Bose A20 Aviation에 대해서도 마찬가지입니다: 빠른 참조 매뉴얼 (2 페이지), 소유자 매뉴얼 (43 페이지), 소유자 매뉴얼 (40 페이지), 소유자 매뉴얼 (44 페이지), 소유자 매뉴얼 (44 페이지), 빠른 참조 매뉴얼 (2 페이지)
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English
Tab 2, 10
Helicopter (U174) connection diagram
Existing wiring to
helicopter intercom/
audio panel
Note: Barrel ground (gnd) refers to aircraft grounds.
Details on making the connections
The pinouts for the optional installed connector are detailed in the table below:
Pin number
1
2
3
4
Note: For stereo operation, connect the left and right channels to their respective positions. For
monaural operation, connect pins 3 and 4 together, and to the tip of the existing phone jack.
5
6
Note: If the microphone works on radio transmit but not through the intercom, check pin 6. It
may be incorrectly wired to the PTT segment of the microphone jack.
Comm Shield
Mic Shield
Note: The wires connecting pins 3 and 4 and pins 5 and 6 are shielded, twisted pairs with a
black wire shield termination exiting each pair. If the existing wiring is not shielded, connect the
shields to the existing audio wiring shields, or connect the shield from Comm L and Comm R
wire pair to audio ground.
Tab 3, 11
Tab 4, 12
WHT/BLU
WHT
BLU
WHT
BLK
RED
10-32
1/2A
V DC
Existing single 4-
prong jack
Color
Purpose
Red
V+IN: Headset power (10-32 VDC). Use a
1
a
/
amp circuit breaker.
2
Black
GND: System ground. Connect to the existing audio ground.
White
COMM L: Phone communication: Left.
Blue
COMM R: Phone communication: Right.
White
MIC HI: Microphone/Hi-audio. Connect to the portion of the
existing microphone jack that corresponds to the ring
position of a headset microphone plug. Do not connect to
the tip (PTT) segment.
White/
MIC LO: Microphone/Lo-ground. Connect to the portion of
Blue
the microphone jack that corresponds to the barrel position
of a headset microphone plug.
Black
Shield from Comm L and Comm R wire pair.
Black
Shield from Mic Hi and Mic Lo wire pair.
Tab 5, 13
6
MIC LO
5
MIC HI
4
COMM R
3
COMM L
2
GND
1
V+IN
Barrel
(audio gnd)
Tab 6, 14
Tab 7, 15
I
1
/
amp fuse or
4
Tab 8, 16
NSTALLATION
33