Bose A20 manual Mono connection diagram, Stereo connection diagram, Installation

INSTALLATION

CAUTION: Do not use excessive force or bend the installed connector. This may damage or break internal solder joints.

Note: The aircraft panel connector cannot be installed in an audio system using transformer-coupled audio outputs. Contact the Bose® Technical Support, using the contact information on page 37 of this guide for details.

Mono connection diagram

Existing wiring to aircraft intercom/ audio panel

10-32	1/2A	RED		1V+IN
V DC		BLK
			BLK/WH	2 GND
		WHT
				3 COMM L
		BLU
				4 COMM R
		WHT
				5 MIC HI
		WHT/BLU
				6 MIC LO
			BLK/WH
				Ring
		Microphone - Jack		(audio)
		TPP		Barrel	Existing PTT
					switch
		(PTT)		(gnd)
					and wiring
				(no connection to
				Bose headset)
		Headphone - Jack
		Tip		Barrel
	(phone audio)			(audio gnd)

Stereo connection diagram
10-32	1/2A	RED		1V+IN
V DC		BLK
				2 GND
			BLK/WH
		WHT		3 COMM L
		BLU		4 COMM R
		WHT
				5 MIC HI
		WHT/BLU
				6 MIC LO
			BLK/WH
				Audio
		Microphone - Jack
		TPP		Barrel	Existing
		(PTT)		(gnd)	PTT switch
					and wiring
					(no connection to
					Bose headset)
	Phone		Stereo Headphone - Jack
Existing wiring to	audio (right)
aircraft stereo
intercom/audio panel				Barrel
	Tip			(audio gnd)
	(phone audio left)

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