Bose II manual Installed connector, Installing the wire harness

Page 15

Using the Bose® Aviation Headset

Installed connector

An optional installed connector is available for pilots who want to hardwire the DC power, incoming audio, and outgoing microphone functions permanently into their plane. The panel mount receptacle comes wired with a 6 foot harness to simplify the installation process. To order this connector, contact the Bose Aviation Headset Service Department (page 23).

The Bose Aviation Headset Series II uses a self-latching, precision designed quick connector. A mechanical keying system ensures greater ease in mating.

Installing the wire harness

Note: This installation must be done by mechanics qualified to perform this type of avionics installation for the aircraft in which the installed connector will be used.

A .5 in. x .56 in. (1.27 cm x 1.42 cm) cutout is required to mount the connector as shown in Figure 9. There are 6 wires to connect: 2 for microphone, 2 for audio, 1 for power, and 1 for ground. The audio and microphone wires should be con- nected to the back of the existing microphone and phone jacks. This leaves the existing jacks intact for use with conventional headsets and is usually the fastest installation method.

The pinout for the optional installed connector is as follows:

Pin

Wire

Description

1

Red

Headset power (7-32 Volts DC). Use a .5 amp fuse or circuit

 

 

breaker.

2

Black

System ground. Connect to the existing audio ground.

3

White

Phone communication-left.

4

Black

Phone communication-right.

5

White

Mic/Hi-audio. Connect to the existing portion of the mic jack

 

 

that corresponds to the ring position of a headset micro-

 

 

phone plug. Do not connect to the tip (PTT) segment.

6

White/Blue

Mic/Lo-ground. Connect to the existing portion of the mic

 

 

jack that corresponds to the barrel position of a headset

 

 

microphone plug.

 

 

 

Notes:

1.If used with a stereo intercom, connect the left and right channels to their respective positions. For mono operation, connect Pins 3 & 4 together to the tip portion of the existing phone jack.

2.Do not bend or use excessive force on the installed connector. Doing so may damage or break the internal solder joints.

3.If the boom mic works on radio transmit but not through the intercom, check Pin 6. It is probably miswired to the PTT segment of the mic jack.

4.The wire connecting Pins 3 & 4 and 5 & 6 are shielded, twisted pair with a shield termination exiting with a black wire for each pair. Connect shields to existing audio wiring shields, or audio ground if the existing wiring is not shielded.

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Contents Bose Aviation Headset Series Operational Advisories Operational Advisories Declaration of Conformity Contents Description Warranty cardFor proper headset fit Interconnect plug Microphone placementFail-resistant operation Adjusting the volumeMicrophone boom relocation Headset cable relocation Nicad rechargeable battery pack Powering the headsetPortable battery pack Charging the Nicad battery packInserting batteries into the alkaline battery pack Click Installing the wire harness Installed connectorPanel Hole Required Installing the DC power connector Installed DC power connectorCleaning instructions Clear ComfortTM cushion replacement and maintenanceTo remove the cushion and foam liner To install a new foam liner To clean the cushionTo replace the cushion Case of Difficulty Problem What to doTechnical Information Headset Weight Service Warranty periodIf your headset must be returned for service Limited warranty Bose product Page Page
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II specifications

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