A30 Aviation Headset - Wireless Earbuds BOSE - Free user manual and instructions

USER MANUAL A30 Aviation Headset BOSE

Please read and keep all safety and use instructions. For more information about your A30 Aviation Headset, visit: support.Bose.com/A30support.Bose.com/A30 Bose Corporation hereby declares that this product is in compliance with the essential requirements and other relevant provisions of Directive 2014/53/EU and all other applicable EU directive requirements. The complete declaration of conformity can be found at: www.Bose.com/compliancewww.Bose.com/compliance This product conforms to all applicable EU directive requirements. The complete declaration of conformity can be found at: www.Bose.com/compliancewww.Bose.com/compliance This product conforms to all applicable Electromagnetic Compatibility Regulations 2016 and all other applicable UK regulations. The complete declaration of conformity can be found at: www.Bose.com/compliancewww.Bose.com/compliance Bose Corporation hereby declares that this product is in compliance with the essential requirements per Radio Equipment Regulations 2017 and all other applicable UK regulations. The complete declaration of conformity can be found at: www.Bose.com/compliancewww.Bose.com/compliance WARNINGS/CAUTIONS

• To reduce the risk of fire or electrical shock, do NOT expose this product to rain, dripping, splashing, or moisture and do not place liquid filled objects such as vases, on or near the product.

• Do NOT make unauthorized alterations to this product.

• The battery provided with this product may present a risk of fire, explosion or chemical burn if mishandled, incorrectly replaced or replaced with an incorrect type.

• If the battery leaks, do NOT allow the liquid to come in contact with the skin or eyes. If contact is made, seek medical advice.

• Do not expose products containing batteries to excessive heat (e.g. from storage in direct sunlight, fire or the like).

• Keep batteries out of reach of children.

• Please dispose of used batteries properly, following any local regulations.

• Batteries may cause a fire or chemical burn if mishandled. Do not recharge, disassemble, heat, or incinerate. Contains small parts which may be a choking hazard. Not suitable for children under age 3. This product contains magnetic material. Consult your physician on whether this might aect your implantable medical device. NOTE: Damage could occur to avionics equipment by the use of these headsets if equipment was manufactured for use with 600 Ω headsets only. If in doubt, consult the avionics equipment manufacturer. Please read and save this guide Please read this guide carefully. Save this guide for future reference and make it easily accessible for passengers and third parties who use this headset.

• Switch to an alternate communications method in the event of a headset issue. In the unlikely event of any headset issue or failure in the passive noise reducing mode, switch to an alternate communications method and use standard cockpit resource management skills to minimize distractions.

• Use the headset at a moderate volume level. To avoid hearing damage, use the headset at a comfortable, moderate volume level. Limit the headset volume to safe levels that do not interfere with your ability to hear informational sounds and warning alarms, such as stall warnings or gear up, while piloting.IMPORTANT SAFETY INSTRUCTIONS

• Turn the headset o if it emits any loud noise. As with any complex electronic device, it is possible for this headset to fail during operation. Symptoms of failure, which may include loud tones, distortion, feedback squeals and loss of communications signal in the headset, can occur in either the Acoustic Noise Cancelling mode (turned on) or in the passive mode (turned o). If the headset emits any loud noise and the related loss of communications in the Acoustic Noise Cancelling mode, turn o the power switch. The headset will continue to provide communications in the passive noise-reducing mode. If the problem persists, see “Troubleshooting” on page 54.

• Be aware of sound dierences while wearing the headset. With the headset’s active and passive noise reduction, typical aircraft sounds (such as engines, propellers, warning alarms, and other sound sources) may not sound familiar. Make sure you can hear and recognize these sounds when using the headset while operating any aircraft.

• Do NOT make phone calls while piloting. Do not use the headset for telephone calls during flight operations.

• Make sure your aircraft communications system volume control is easily accessible. This control aects the strength of the communications signal coming into the headset. Make sure you can understand critical communications even with Acoustic Noise Cancelling mode turned o. In this case, you may need to turn up the aircraft communications system volume. In passive mode, the volume controls on the control module will automatically be set to maximum volume. For additional volume control, use the intercom or radio volume control. If your headset is aircraft powered, connect the headset to the aircraft power sources only as described in “Aircraft Connectors” on page 34.

• Make sure portable devices do not interfere with the aircraft’s navigation and communication systems. Reference FAA AC 91.21-1D, or later revision, for installation approval. It is the pilot’s responsibility to ensure that portable devices do not interfere with the aircraft’s navigation and communication systems, as well as to determine if the portable device is suitable for use with the headset.

• Use AA (LR06) batteries, alkaline preferred. Alkaline batteries are recommended for best results. Other battery chemistries may yield dierent results. Battery life may dier and battery life indication may not be accurate. Properly dispose of used batteries.

• Do NOT repair the headset yourself. Contact the Bose organization in your country/region for specific care, return and shipping instructions. Visit: global.Bose.comglobal.Bose.com

• Do not use the headset with a helmet or as part of a crash protection system. The headset is not intended for such use, and has not been certified for crash protection. Dismantling, reassembly or modification of the headset, or any part, for use in a helmet or other crash protection system could result in severe bodily injury and such unauthorized use will void the limited product warranty.

• Do NOT immerse the headset or any parts in water or any other liquid. See “Clean the headset” on page 48 for cleaning instructions.

• Keep the earcup free of debris. Proper headset operation requires that the headset acoustic and microphone openings located on the outside of each earcup are kept free of debris to ensure clear communications. See “Clean the headset” on page 48 for cleaning instructions.4

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to

Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a

residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment o and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving product or antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit dierent from that to which the receiver is connected.

CAN ICES-3(B)/NMB-3(B) For Europe: Frequency band of operation 2400 to 2483.5 MHz. Maximum transmit power less than 20 dBm EIRP. Maximum transmit power is below regulatory limits such that SAR testing is not necessary and exempt per applicable regulations. This symbol means the product must not be discarded as household waste, and should be delivered to an appropriate collection facility for recycling. Proper disposal and recycling helps protect natural resources, human health and the environment. For more information on disposal and recycling of this product, contact your local municipality, disposal service, or the shop where you bought this product. Please dispose of used batteries properly, following local regulations. Do not incinerate.5

Low-power Radio-frequency Devices Technical Regulations Without permission granted by the NCC, any company, enterprise, or user is not allowed to change frequency, enhance transmitting power or alter original characteristic as well as performance to a approved low power radio-frequency devices. The low power radio-frequency devices shall not influence aircraft security and interfere legal communications; If found, the user shall cease operating immediately until no interference is achieved. The said legal communications means radio communications is operated in compliance with the Telecommunications Management Act. The low power radio-frequency devices must be susceptible with the interference from legal communications or ISM radio wave radiated devices. China Restriction of Hazardous Substances Table Names and Contents of Toxic or Hazardous Substances or Elements Toxic or Hazardous Substances and Elements Part Name Lead (Pb) Mercury (Hg) Cadmium (Cd) Hexavalent (CR(VI)) Polybrominated Biphenyl (PBB) Polybrominated diphenylether (PBDE) PCBs X O O O O O Metal Parts X O O O O O Plastic Parts O O O O O O Speakers X O O O O O Cables X O O O O O This table is prepared in accordance with the provisions of SJ/T 11364. O: Indicates that this toxic or hazardous substance contained in all of the homogeneous materials for this part is below the limit requirement of GB/T 26572. X: Indicates that this toxic or hazardous substance contained in at least one of the homogeneous materials used for this part is above the limit requirement of GB/T 26572.6

Date of Manufacture: The eighth digit in the serial number indicates the year of manufacture; “3” is 2013 or 2023. China Importer: Bose Electronics (Shanghai) Company Limited, Level 6, Tower D, No. 2337 Gudai Rd. Minhang District, Shanghai 201100 EU Importer: Bose Products B.V., Gorslaan 60, 1441 RG Purmerend, The Netherlands Mexico Importer: Bose de México S. de R.L. de C.V., Avenida Prado Sur #150, Piso 2, Interior 222 y 223, Colonia Lomas de Chapultepec V Sección, Miguel Hidalgo, Ciudad de México, C.P. 11000 Phone Number: [phone] Taiwan Importer: Bose Limited Taiwan Branch (H.K.), 9F., No.10, Sec. 3, Minsheng E. Road, Zhongshan Dist. Taipei City 10480, Taiwan Phone Number: [phone] UK Importer: Bose Limited, Bose House, Quayside Chatham Maritime, Chatham, Kent, ME4 4QZ, United Kingdom Model: 429358. The CMIIT ID is located on the inside of the battery cover. Please complete and retain for your records The serial and model numbers are located under the headband cushion. Serial number: ____________________________________________________________________ Model number: ____________________________________________________________________ Please keep your receipt with your owner’s guide. Now is a good time to register your Bose product. You can easily do this by going to worldwide.Bose.com/ProductRegistrationworldwide.Bose.com/ProductRegistration The Bose Privacy Policy is available at worldwide.Bose.com/privacypolicyworldwide.Bose.com/privacypolicy The Bose Terms of Use are available at worldwide.Bose.com/termsofuseworldwide.Bose.com/termsofuse Apple and the Apple logo are trademarks of Apple Inc. registered in the U.S. and other countries. App Store is a service mark of Apple Inc. Android, Google Play, and the Google Play logo are trademarks of Google LLC. The Bluetooth

word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Bose Corporation is under license. Bose Corporation Headquarters: 1-877-230-5639 A20, Acoustic Noise Cancelling, Bose, and Bose A30 Aviation Headset are trademarks of Bose Corporation. ©2023 Bose Corporation. No part of this work may be reproduced, modified, distributed, or otherwise used without prior written permission.7

ENG LICENSE DISCLOSURES The following license disclosures apply to certain third-party software packages used as components in the product. Package: LittlevGL Version 7.10.1 Copyright © 2020 LVGL LLC Package: pycrc Copyright © 2006-2015, Thomas Pircher <[e-mail]> The above is/are subject to the license terms reprinted below: MIT License Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated docu- mentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Package: MCUXpresso Software Development Kit (SDK) ©2006-2021 NXP Semiconductors. All rights reserved. The above is/are subject to the license terms reprinted below: 3-Clause BSD License (Also called “BSD License 2.0” or “Modified BSD License”) Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

• Neither the name of the <organization> nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.8

ENG LICENSE DISCLOSURES Packages: CMSIS Version 5.6.0 & SDK CMSIS Peripheral Drivers 2.x.x Copyright © 2010-2017 ARM Limited or its aliates. All rights reserved. Package: Mbed TLS Version 2.26.0 Copyright © 2021 Arm Limited (or its aliates). The above is/are subject to the license terms reprinted below: Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

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• For aircraft connector types, see page 34.

• If any part of the product is damaged, don’t use it. Contact your authorized Bose dealer or Bose customer service. Visit: support.Bose.com/A30support.Bose.com/A30WHAT’S IN THE BOX

Proper fit is important both for comfort and optimal noise cancellation performance.

1. Locate the left T and right U icons inside the earcups to orient the

2. Place the headset on your head.

3. Adjust the headband so the ear cushions completely cover your ears.

NOTE: For best performance, make sure the ear cushions fit securely around your ears so they create a seal.IMPORTANCE OF PROPER FIT

1. Grasp the microphone base and adjust the boom so the microphone is level

with your mouth. CAUTION: Microphone placement is important for clear communication. The microphone boom can rotate 160°. Do NOT force it beyond the intended rotation or damage could occur.IMPORTANCE OF PROPER FIT

2. Make sure the microphone is 0.5" (12.7 mm) from your lips.

NOTE: The microphone should not be touching your lips. 0.5"

3. Make sure the white dot on the microphone base faces your mouth.

NOTE: If needed, twist the microphone base.

4. Test the headset before flight.IMPORTANCE OF PROPER FIT

CONDITIONS RELATED TO FIT

In very loud conditions, such as during takeo, you may experience a brief reduction in noise cancellation as the headset compensates for a momentary pressure change. If this continues when the sound level returns to normal, see “Acoustic Noise Cancelling” on page 23. If it persists, see “Troubleshooting” on page 54. A low rumbling sound or frequent, brief losses of noise cancellation may indicate an improper fit or blocked earcup openings. See “Clean the headset” on page 48 for instructions on removing blockages. During a long flight, you may feel a slight pressure point, which can be relieved by adjusting the headband position.

SECURE THE CABLE AND CONTROL MODULE

The cable clips and control module holder secure the cable and control module to your clothing, a safety harness, sun visor rail, or aircraft headset hook for quick and easy access. Cable clips Squeeze the narrow end of the clip to open. Press the side button to release and reposition the clip along the cable. Side button Control module holder Stretch the holder over the back of the control module to secure it in place.22

ENG HEADSET CONTROLS POWER ON Press the Power button I. The Power light glows amber then blinks according to the battery level. See “Power light” on page 36. NOTE: The first time you power on your headset, noise cancellation is fully enabled. See “Acoustic Noise Cancelling” on page 23. POWER OFF Press and hold I until the Power light glows amber, then release. NOTE: When powered o, the headset provides passive audio communications.23

Acoustic Noise Cancelling reduces unwanted noise, providing a clearer, more lifelike audio performance. You can choose your noise cancellation level based on your listening preferences and environment. NOTE: When you receive a call, the headset remains at the current noise cancellation level.

ACOUSTIC NOISE CANCELLING (ANC) SWITCH

Sets the noise cancellation level.

FUNCTION POSITION DESCRIPTION

HIGH Maximum quiet and noise cancellation across the entire spectrum. Best signal-to-noise ratio for radio and intercom communications in loud aircraft. MED Consistent noise reduction across a wide range of frequencies. Best for clear and comfortable noise cancellation in typical jet aircraft. LOW Best for improved interpersonal communication outside of the intercom in quieter environments.ACOUSTIC NOISE CANCELLING

When you need to focus on interpersonal communication coming from a specific direction, you can automatically set noise cancellation to LOW in one earcup. NOTES: 

• By default, the TAP CONTROL operation switch is set to OFF.

• Tap Control is available only when the Acoustic Noise Cancelling (ANC) switch is in the HIGH or MED position.

• Tap Control is disabled during extreme levels of ambient noise to ensure proper noise reduction performance and intercom communication quality. However, you can still set the noise cancellation level to LOW in both earcups using the Acoustic Noise Cancelling (ANC) switch (see page 23).

1. Make sure the Acoustic Noise Cancelling (ANC) switch is in the HIGH or

2. Inside the control module battery compartment, set the TAP CONTROL switch to

ON. See “Change the operation switches” on page 28.

3. Firmly double-tap the outside of the earcup.

ENG Switch earcups To switch Tap Control to the other earcup, firmly double tap the other earcup. Reset Tap Control To resume noise cancellation in both earcups, double-tap the earcup where Tap Control is currently active, or move the Acoustic Noise Cancelling (ANC) switch to another position.26

The operation switches are located in the control module battery compartment. NOTE: Some operation switches are not available on all models.

FUNCTION POSITION DEFAULT DESCRIPTION

REVERSIONARY OFF Disables all non-critical functions, including Bluetooth audio, AUX audio, and Tap Control. Only intercom communications and Acoustic Noise Cancelling are enabled. In case of emergency hardware or software failure, set the switch to ON. For more information, see page 59. TAP CONTROL OFF Enables/Disables Tap Control feature (see page 24). PRIORITY

Establishes priority between two secondary audio sources connected at the same time. Select BT to give the Bluetooth (wireless) connection higher priority. Select AUX to give the wired connection higher priority. For more information, see page 46.OPERATION SWITCHES

INTERCOM MONO Processes intercom audio as mono or stereo. Available for configurations that support two-channel or stereo intercom systems only. NOTE: 5-pin XLR and U174 models are mono-only configurations. AUTO OFF

Power o automatically after 3 to 45 minutes of inactivity. NOTES: 

• When running on battery power and unplugged from the intercom, the headset powers o unless there is audio from an active mobile device present.

• If you are on a call and unplugged from the intercom, the headset powers o approximately 3 minutes after the call is ended. AUTO ON

Power on automatically when connected to aircraft power. NOTES: 

• Available in Flex Power models only (see page 34).

• Bluetooth models return to the previous Bluetooth state when powered on.OPERATION SWITCHES

slide the cover down. CAUTION: The battery cover is tethered to the control module. Do NOT attempt to detach it.

3. Remove the batteries.

4. Using a pen or a small, flat-tipped screwdriver, gently move the switch(es).OPERATION SWITCHES

5. Insert two AA batteries (alkaline preferred), observing proper polarity.

CAUTION: If the batteries don’t fit correctly, do NOT force them in. Forcing an improper connection will cause permanent damage to the control module.

6. Close the battery cover, press firmly down on the finger indent, and slide the

ENG MICROPHONE PLACEMENT By default, the microphone assembly ships from the factory attached to the left earcup (although in some configurations it may ship unattached). It can be easily moved from one earcup to the other. Terminator coverMicrophone assembly

Remove the microphone assembly and terminator cover

1. At the base of the microphone assembly, open the two latches.

2. Gently pull the microphone assembly from the socket.MICROPHONE PLACEMENT

3. On the terminator cover, open the latch.

4. Gently pull the terminator cover from the socket.

Replace the microphone assembly and terminator cover

1. Align the base of the microphone assembly with the socket on the earcup and

slide in until secure.

2. At the base of the microphone assembly, close the two latches.

3. Align the terminator cover with the socket on the other earcup and slide in

until secure. CAUTION: Do NOT force the terminator cover into the socket. NOTE: If the terminator cover is not securely installed, there will be no audio in the earcup.

4. On the terminator cover, close the latch.

5. Test the headset before flight.32

When the battery light blinks red, the batteries must be replaced. NOTE: For aircraft-powered headsets, batteries are not required for operation if aircraft power is available. However, you can still install batteries when connected to aircraft power as a backup in case of power interruptions or disconnections. See “Aircraft Connectors” on page 34.

slide the cover down. CAUTION: The battery cover is tethered to the control module. Do NOT attempt to detach it.

4. Insert two AA batteries (alkaline preferred), observing proper polarity.

CAUTION: If the batteries don’t fit correctly, do NOT force them in. Forcing an improper connection will cause permanent damage to the control module.

5. Close the battery cover, press firmly down on the finger indent, and slide the

cover into place. NOTES: 

• New AA alkaline batteries supply up to 45 hours of power for the headset. Battery life varies with the ambient noise level of the aircraft, temperature, ear cushion condition, Bluetooth feature use, and age of the batteries.

• Other battery chemistries may yield dierent results. Battery life may dier and battery life indication may not be accurate.34

ENG AIRCRAFT CONNECTORS Your headset comes with one of several standard aircraft connector options.

POWER TYPE CONNECTOR OPTIONS

Battery power only Dual plug (general aviation) U174 Flex Power: Aircraft power or battery power NOTES: 

• Batteries aren’t needed when connected to aircraft power.

• This model comes with an Auto On function (see page 27). 5-pin XLR 6-pin Lemo NOTES: 

• Adapters are available to convert a 6-pin Lemo connector to a Dual plug or U174 connector for additional connection flexibility.

• Not all aircraft provide power to multi-pin connectors. Check the power status to confirm power is suppled to the headset (see page 37). NOTE: Contact Bose customer service for more information about these connectors. DUAL PLUG (GENERAL AVIATION) Dual plug models have two general aviation aircraft connectors that insert into specific jacks on the aircraft control panel. NOTE: The microphone connector is shorter, thinner, and has a slightly dierent shape than the intercom connector. Connect to the aircraft

1. Insert the intercom connector into the intercom jack on the aircraft

2. Insert the microphone connector into the microphone jack on the

aircraft control panel. Microphone connectorIntercom connector Disconnect from the aircraft Gently pull back on each connector to remove the connector from the aircraft control panel.AIRCRAFT CONNECTORS

U174, 5-PIN XLR, AND 6-PIN LEMO

5-pin XLR and 6-pin Lemo aircraft connectors provide the headset with both aircraft power and intercom audio. U174 connectors provide the headset with only intercom audio. Connect to the aircraft

1. Align the connector with the socket on the aircraft control panel, matching the

narrow bar on the connector with the slot in the socket.

2. Firmly insert the connector into the aircraft control panel.

6-pin Lemo5-pin XLR U174 Disconnect from the aircraft (U174 and 5-pin XLR)

1. Press the button/latch on the aircraft control panel to release the connector,

2. Gently pull back to remove the connector from the aircraft control panel.

5-pin XLR U174 Disconnect from the aircraft (6-pin Lemo)

1. Pull back on the sleeve near the end of the connector.

CAUTION: You must pull back on the sleeve before you pull out the connector. Forcing the connector out will damage the cable and/or the aircraft control panel.

2. Continue gently pulling back to remove the connector from the aircraft

ENG STATUS LIGHTS The Power and Bluetooth lights are located on the front of the control module. POWER LIGHT Shows the power source and level.

POWER SOURCE LIGHT ACTIVITY SYSTEM STATE

Aircraft Slow blinking green Power On Battery Blinking green Power On—batteries high (about 8 hours or more remaining) Battery Blinking amber Power On—batteries low (about 2 to 8 hours remaining) Battery Blinking red Power On—batteries low (about 2 hours or less remaining) NOTE: In Bluetooth models, when the batteries reach this level, the Bluetooth feature is disabled to conserve remaining power. You hear a tone, indicating that your Bluetooth device is disconnecting and the Bluetooth feature is turning o. Aircraft or battery None Power O or batteries depleted NOTES: 

• New AA alkaline batteries supply up to 45 hours of power for the headset. Battery life varies with the ambient noise level of the aircraft, temperature, ear cushion condition, Bluetooth feature use, and age of the batteries.

• Other battery chemistries may yield dierent results. Battery life may dier and battery life indication may not be accurate.STATUS LIGHTS

ENG BLUETOOTH LIGHT NOTE: This section applies to Bluetooth models only. Shows the connection status of a mobile device.

LIGHT ACTIVITY SYSTEM STATE

Blinking purple (in sync with Power light) Ready to connect Blinking blue (in sync with Power light) Connecting/Connected

DIM THE STATUS LIGHTS

To dim the Bluetooth and Power lights, double-press the Power button I. To restore brightness, press I again, or turn the headset o and then on.

TURN OFF THE STATUS LIGHTS

To turn o the Bluetooth and Power lights, triple-press I. To turn the lights back on, press I again, or turn the headset o and then on. NOTE: The status lights will return to default brightness each time the headset is powered on.38

You can connect your headset to a secondary audio source in two ways:

• AUX (wired) connection

• Bluetooth (wireless) connection (applies to Bluetooth models only) AUX CONNECTIONS Use the 3.5 mm AUX audio cable to connect a non-wireless device.

1. Make sure the Secondary Audio Mode switch is in the MUTE or MIX position

(see page 45) and the REVERSIONARY operation switch is set to OFF (see page 28). NOTE: If the Secondary Audio Mode switch is set to OFF or the REVERSIONARY operation switch is set to ON, AUX audio functionality is disabled.

2. Connect the cable to the 3.5 mm AUX port on the back of the control module.

3. Connect the other end of the cable to the 3.5 mm port on your audio source.

NOTE: The functions of a connected AUX audio source are not controlled by the control module.SECONDARY AUDIO SOURCES 39

ENG BLUETOOTH CONNECTIONS NOTE: This section applies to Bluetooth models only. Connect using the Bluetooth menu on your mobile device

1. Make sure the Secondary Audio Mode switch is in the MUTE or MIX position

(see page 45) and the REVERSIONARY operation switch is set to OFF (see page 28). NOTE: If the Secondary Audio Mode switch is set to OFF or the REVERSIONARY operation switch is set to ON, Bluetooth functionality is disabled.

2. Press and hold the Bluetooth/Multi-function button l for 1 second.

The Bluetooth light blinks purple.

3. On your mobile device, enable the Bluetooth feature.

NOTE: The Bluetooth feature is usually found in the Settings menu.

4. Select the headset from the device list.

Bose A30 Once connected, you hear a tone, and the Bluetooth light blinks blue. NOTES: 

• After 5 minutes of inactivity, the headset automatically exits pairing mode, and the Bluetooth light turns o. To turn the Bluetooth feature back on, press l.

• Each time you turn on the Bluetooth feature, the headset attempts to reconnect with the two most recently connected Bluetooth devices. If the device(s) are turned o or out of range, the headset attempts to reconnect to any other devices in the pairing list, then returns to pairing mode. See “Reconnect a mobile device” on page 40.SECONDARY AUDIO SOURCES

ENG Disconnect a mobile device

1. Press and hold the Bluetooth/Multi-function button l for 5 seconds to turn the

NOTE: You can also use Bluetooth settings to disconnect your device. Disabling the Bluetooth feature disconnects all other devices. Reconnect a mobile device When powered on, the headset tries to reconnect with the two most recently-connected devices. NOTE: The devices must be within range (30 ft or 9 m) and powered on. Recover a lost connection When your connected mobile device moves out of range, the connection is lost. The headset automatically attempts to reconnect for 5 minutes. If the headset is unable to reconnect, it returns to pairing mode. After 5 minutes of inactivity, the Bluetooth feature turns o.

1. Move the device back into range.

2. Press l to reconnect.

Connect an additional mobile device You can store up to eight paired devices in the headset pairing list, and your headset can be actively connected to two devices at a time. To connect an additional device, use the Bluetooth menu on your device (see page 39). NOTES: 

• Only one secondary audio source can be heard at a time.

• Secondary audio will never override the intercom.SECONDARY AUDIO SOURCES

ENG Switch between connected devices

1. Pause audio on your first device.

2. Play audio on your second device.

Clear the headset pairing list

1. Press and hold the Bluetooth/Multi-function button l and z (the Bluetooth

volume down button, located on the side of the control module) simultaneously for 7 seconds, or until the Bluetooth light blinks purple in sync with the Power light.

2. Delete the headset from the Bluetooth list on your device.

All devices are cleared, and the headset is ready to connect. See “Bluetooth connections” on page 39.SECONDARY AUDIO SOURCES

ENG BLUETOOTH FUNCTIONS NOTE: This section applies to Bluetooth models only. Bluetooth volume functions The Bluetooth volume controls are located on the side of the control module.

ENG Call functions The Bluetooth/Multi-function button l is located on the front of the control module.

Make a call Dial from your connected phone. The call automatically transfers to the headset. Answer a call Press l. You hear a short beep before you hear the incoming call. End a call Press l. You hear two short beeps indicating the call has ended. Decline an incoming call Press and hold l for 1 second. You hear two short beeps indicating the call has been declined. Answer a second incoming call and put the current call on hold While on a call, press l. You hear a short beep before you hear the second call. Decline a second incoming call and stay on current call While on a call, press and hold l for 1 second. You hear two short beeps indicating the call has been declined. Switch between two calls With two active calls, double-press l. You hear a short beep before you hear the incoming call. Redial the last number When there are no active or incoming calls, double-press l.SECONDARY AUDIO SOURCES

Transfer audio to the mobile device While on a call, press and hold the Bluetooth/Multi-function button l for 3 to 4 seconds. The audio is transfered to the mobile phone while the Bluetooth connection remains active. Activate voice control When there are no active or incoming calls, press l. Mute/unmute a call While on a call, press H and z simultaneously. You hear two short beeps indicating the call has been muted/unmuted. NOTES: 

• If you are on a call and unplugged from the intercom, the headset powers o approximately 3 minutes after the call is ended.

• To use the headset when unplugged from the intercom (to listen to audio or to make or receive calls), Bose recommends to disable the Auto o feature for uninterrupted functionality. See “Operation Switches” on page 26.

• Some functions may not be available for some mobile devices. Refer to your device owner’s guide for more information.45

Controls how secondary audio sources are heard in relation to the intercom.

FUNCTION POSITION DESCRIPTION

MUTE When an intercom signal is detected, secondary audio is temporarily muted until intercom audio ceases. MIX When an intercom signal is detected, secondary audio is mixed with intercom audio. You hear a maximum of two audio sources: the intercom plus one secondary device. OFF Only intercom audio is active. All secondary audio sources, (AUX and Bluetooth) are muted. NOTES: 

• All Bluetooth connections are disabled and antennae power is removed.

• If you switch to OFF while connected to a Bluetooth device, you may need to re-establish your Bluetooth connection the next time you turn on the headset or the next time you move the switch from the OFF position. NOTES: 

• Only one secondary audio source can be heard at a time.

• Audio from a secondary source will never override intercom communications.

• When MUTE or MIX are selected, incoming and outgoing phone calls automatically mute all other secondary audio sources.

• During a phone call, intercom and phone call audio are mixed.SECONDARY AUDIO PRIORITY

Establishes priority between two secondary audio sources connected at the same time.

1. Locate the PRIORITY operation switch inside the battery compartment.

2. Set the switch to the correct source (BT or AUX). See “Change the operation

switches” on page 28.

• When the switch is in the BT position, the Bluetooth source will override the AUX source if a signal is detected.

• When the switch is in the AUX position, the AUX source will override the Bluetooth source if a signal is detected. NOTE: Incoming and outgoing phone calls will always override any other secondary source.

SECONDARY AUDIO PRIORITY CHART

Audio sources are heard according to priority: Active calls will override all other secondary audio sources Radio/Intercom Bluetooth Phone calls Streaming Bluetooth (A2DP) AUX audio Priority Can be changed by setting the PRIORITY switch Always overrides all other audio47

• Place the headset in the carry case for easy, convenient storage.

• Store the headset in a ventilated area away from direct sunlight.

• Remove the batteries before storing the headset for extended periods.CARE AND MAINTENANCE

Your headset may require periodic cleaning.

COMPONENT CLEANING PROCEDURE

Headset Wipe the outside surfaces of the headband, headband cushion, earcup cushions, connectors, and plastic parts using a soft, damp cloth (water only) and mild soap. CAUTION: Do NOT immerse the headset in water or any liquid. Earcup openings Check to make sure that the openings on the outside of each earcup are clean and free of debris before each flight. When wiping down the earcups, be sure not to force any dirt or debris into the openings. Carefully use tweezers, if necessary, to remove foreign matter that may be lodged in the openings. CAUTION: Do NOT blow air into or vacuum the openings, as this may damage the headset. Earcup inner screen Do not attempt to remove, replace, repair, or clean the inner screen inside the earcup. If the screen appears to be damaged or worn out, contact Bose customer service. If the inner screen becomes damp from environmental moisture such as light rain, dew, perspiration, or condensation, allow it to air dry only. CAUTION: Do NOT use electric heaters, blowers, or hair dryers to dry the inner screen. Microphone windscreen

1. Gently slide or roll the windscreen o the microphone.

2. Rinse and dry the windscreen.

3. Once the windscreen is completely dry, slide the windscreen back on

the microphone. Make sure it fits completely over the microphone. Microphone opening Acoustic openingsCARE AND MAINTENANCE

ENG LIMITED WARRANTY The headset is covered by a limited warranty. Details of the limited warranty are provided on the product registration card that is in the carton. Please refer to the card for instructions on how to register. Failure to do so will not aect your limited warranty rights.

1. Contact the Bose organization in your country/region (visit wordwide.Bose.comwordwide.Bose.com

for Bose contact information in your country/region) for specific return and shipping instructions.

2. Label and ship the product, freight prepaid, to the address provided by the Bose

organization in your country.

3. Place any necessary return authorization number prominently on the outside of

the carton. Cartons not bearing a return authorization number, where required, will be refused.

SERIAL NUMBER LOCATION

The serial number is located under the headband cushion. To view the serial number, gently grab and peel the cushion from away from the headband. Refer to this serial number when you register your product or contact Bose for technical support.CARE AND MAINTENANCE 50

REPLACEMENT PARTS AND ACCESSORIES

Through normal use, parts like windscreens and ear cushions may require periodic replacement. Replacement parts and accessories can be ordered through Bose customer service. Visit: support.Bose.com/A30support.Bose.com/A30 Available accessories

• Electret microphone windscreen

• Dynamic microphone windscreen

• Service kit (ear cushions, electret microphone windscreen, headband cushions)

• Control module with cable and microphone assembly

• 6-pin to Dual plug cable adapter

• 6-pin to U174 cable adapter

• Cable clip Ear cushions Ear cushions should be replaced every six months or every 350 hours of use. You may need to replace them more often if you:

• Have a full beard or heavy whiskers.

• Subject the headset to severe temperature extremes such as parking your airplane outside in severe cold or heat.

• Put excess strain on the cushions because of improper storage. Indications that the ear cushions need replacing include:

• Flaking of the outer covering

• Flattening of the cushion, reducing the eectiveness of the seal NOTE: To extend the life of the ear cushions, perform regular cleaning (see page 48).CARE AND MAINTENANCE

ENG Remove the old ear cushion

1. Grasp the ear cushion skirt where it folds into the slot on the earcup.

2. Gently pull the ear cushion skirt up and away from the earcup.

Install the new ear cushion

1. Properly align the new ear cushion with the earcup.

2. Tuck an edge of the ear cushion skirt into the slot behind the ear cushion flange.

Be careful not to fold the skirt over.

3. Gently stretch the cushion around the earcup, working the skirt into the slot

4. Grasp the ear cushion and adjust its position to remove any folds in the skirt and

ENG Headband cushions Replace the cushion once regular care and maintenance fails to restore the cushion to its original size and shape.

1. On a protected surface, turn the headset upside down.

2. Remove the old cushion from the headband.

3. While still holding the headband open, align the center of the new cushion with

the center of the headband and press firmly from the center toward the outside.CARE AND MAINTENANCE

ENG Microphone windscreen You can remove the windscreen to wash it or to replace it as needed.

1. Gently grasp the microphone base and peel the windscreen away from

2. Slide the windscreen o the microphone.

3. Slide the new windscreen on the microphone. Make sure it fits completely

over the microphone.

4. Press the sides of the windscreen to secure into place.

Batteries See “Batteries” on page 32. Microphone or terminator cover See “Microphone Placement” on page 30.54

TRY THESE SOLUTIONS FIRST

If you experience problems with your headset, try these solutions first:

• Power on the headset (see page 22).

• Check the state of the status lights (see page 36).

• Make sure the REVERSIONARY operation switch is set to OFF (see “Change the operation switches” on page 28).

• For Bluetooth models: – Make sure your mobile device supports Bluetooth 4.2 and greater. – Increase the volume on your Bluetooth device or music app. – Try connecting another Bluetooth device (see page 40). OTHER SOLUTIONS If you could not resolve your issue, see the table below to identify symptoms and solutions to common problems. If you are unable to resolve your issue, contact Bose customer service. Visit: worldwide.Bose.com/Contactworldwide.Bose.com/Contact Acoustic Noise Cancelling

Communication, but no noise cancellation in either ear If using battery power, make sure the batteries are fresh and correctly installed (see page 32). If using aircraft power, check the aircraft fuse or circuit breaker. If using aircraft power, make sure the connector is firmly seated in the control panel and the control panel has power (see page 34). Power o, then power on the headset (see page 22). NOTE: Don’t press the Power button I repeatedly. No active noise cancellation and no communication If using battery power, make sure the batteries are fresh and correctly installed (see page 32). If using aircraft power, make sure the connector is firmly seated in the control panel and the control panel has power (see page 34). Power o, then power on the headset (see page 22). NOTE: Don’t press the Power button I repeatedly. Use the headset in a dierent seat location. Remove microphone assembly from the headset, and check for damage to the connector or pins (see page 30).TROUBLESHOOTING

Tap Control doesn’t function during extreme ambient noise conditions Tap Control is disabled during extreme levels of ambient noise to ensure proper noise reduction performance and intercom communication quality. However, you can still set the noise cancellation level to LOW in both earcups using the Acoustic Noise Cancelling (ANC) switch (see page 23). Intercom communications

Noise cancellation active, but no incoming audio Make sure the volume controls are not set too low on the control module or the intercom. Make sure the aircraft connectors are securely inserted into the aircraft control panel (see page 34). Use a dierent seat location in the aircraft. Low volume of incoming communications Make sure the volume controls are not set too low on the control module or the intercom. Make sure the INTERCOM operation switch is correctly set for your intercom system (see page 26). Make sure all headsets sharing the intercom have the INTERCOM operation switch in the correct position (see page 26). Unplug all other headsets and see if the volume can be adjusted to an acceptable level. Intermittent communication Make sure the aircraft connectors are securely inserted into the aircraft control panel (see page 34). Use a dierent seat location in the aircraft. Reduced volume in one ear only Make sure the volume controls are not set too low on the control module or the intercom. Make sure the INTERCOM operation switch is correctly set for your intercom system (see page 26). No stereo separation or communications in one ear only Make sure the INTERCOM operation switch is correctly set for your intercom system (see page 26). Make sure the terminator cover is securely installed (see page 30). Depending on how your audio jacks are wired, there may be only one channel of audio supplied to the headphone jack. If the INTERCOM operation switch is set to ST and you only hear communications on one side, set the operation switch to MON to play audio on both sides. 5-pin XLR models are mono audio only.TROUBLESHOOTING

Reduced noise cancellation, intermittent clicking sounds, or communication distortion in a loud environment Make sure the earcups are clean and free of debris (see page 48). Remove the microphone, then attach again (see page 30). If the headset emits any loud noise and related loss of communications while in Acoustic Noise Cancelling mode, turn the power o. The headset will continue to provide communications in the passive noise reducing mode. Squealing or whistling sound when the headset powers on Make sure the headset orientation is correct. Use the Left T and Right U markings on the headset to orient the headset correctly. Make sure the ear cushions fully cover your ears (see page 18). Make sure the earcups are clean and free of debris (see page 48). Crackling sound audible with headset turned on in a loud environment, or noise cancelling is intermittent Make sure the headset orientation is correct. Use the Left T and Right U markings on the earcups to orient the headset correctly. Make sure the earcups are clean and free of debris (see page 48). Remove the microphone, then attach again (see page 30). If using battery power, check if the battery is low (see page 36). If using aircraft power, make sure the voltage powering the headset is no less than 10 VDC.

WARNING: If the headset emits any loud noise and related loss of communications

while in Acoustic Noise Cancelling mode, turn the power o. The headset will continue to provide communications in the passive noise reducing mode.TROUBLESHOOTING

Microphone doesn’t pick up sound Make sure the white dot on the microphone is facing your mouth (see page 19). Make sure the microphone is fully connected to the headband (see page 30). Check the Squelch level on the intercom and adjust if needed. Try another intercom position in the aircraft. For Bluetooth phone calls, make sure the batteries are fresh and correctly installed (see page 32). NOTE: For Bluetooth models only.TROUBLESHOOTING

ENG Bluetooth audio source NOTE: This section applies to Bluetooth models only.

No audio from the Bluetooth source to the headset while on a call Make sure the Secondary Audio Mode switch is in the MUTE or MIX position (see page 45). Turn on and o Bluetooth on the mobile device. Make sure the Bluetooth feature is on, and the Bluetooth light is flashing (see page 37). Make sure the headset and device are in range (30 ft or 9 m). Make sure the mobile device is connected properly and the headset is ready to pair (see page 39). Make sure the Bluetooth volume is not set too low on the control module (see page 42). Headset does not pair with a device Turn on and o Bluetooth on the mobile device. Make sure the Bluetooth feature is on, and the Bluetooth light is flashing (see page 37). If operating on battery power, check the Power light (see page 36). If it’s flashing red, the Bluetooth feature is disabled to conserve power. Replace the batteries. Make sure the Secondary Audio Mode switch is in the MUTE or MIX position (see page 45). Clear the headset pairing list (see page 41) and connect again. Delete the headset from your device’s Bluetooth device list and pair again. Cannot answer/end a call Make sure your mobile device is connected to the headset. Turn your device o and on. Connect again. Headset does not reconnect to a previously connected device Make sure the headset and device are in range (30 ft or 9 m). Make sure the Secondary Audio Mode switch is in the MUTE or MIX position (see page 45). Make sure the Bluetooth feature is on, and the Bluetooth light is flashing (see page 37). If operating on battery power, check the Power light (see page 36). If it’s flashing red, the Bluetooth feature is disabled to conserve power. Replace the batteries. On your mobile device, make sure the Bluetooth feature is on. Delete the headset from your device’s Bluetooth device list and pair again.TROUBLESHOOTING

ENG Auto on/o NOTE: This function is not available for Dual plug and U174 models.

Headset does not power on automatically Make sure the AUTO ON operation switch is set to ON (see page 26). Check the aircraft specifications to see if the jack is getting at least 10V of DC power from the aircraft’s electrical system. Headset does not power o automatically Make sure the AUTO OFF operation switch is set to ON (see page 26). Disconnect the headset from the aircraft. Then power on the headset and wait 15 minutes. It may take up to 9 minutes for the headset to power o when not in use immediately after initial power up. If the headset has not powered o after 15 minutes, contact Bose customer service. Reversionary mode

Headset is in an unresponsive or unusable state Set the REVERSIONARY operation switch to ON (see page 28). This disables all non-critical functions, including Bluetooth audio, AUX audio, and Tap Control. Only intercom communications and Acoustic Noise Cancelling are enabled.60

The aircraft panel connector is part of the optional 6-pin wiring harness assembly. Visit www.Bose.comwww.Bose.com or global.Bose.comglobal.Bose.com for information or to purchase.

WARNING: The aircraft panel connector must be mounted by a technician who is

qualified to perform this type of avionics installation for the aircraft you are using. Mount the connector into a cutout, using the diagrams below as a guide. 12.5mm .49" .55" 14.0mm 1 V+IN 2 GND 3 COMM L 4 COMM R 5 MIC HI 6 MIC LO BLK/WH BLK/WH RED WHT BLU WHT WHT/BLU BLK Pin 6 Pin 1 Aircraft Interface Schematic Receptacle - Pinout (front view)INSTALLATION

ENG Connect the eight wires as follows:

• Two for the microphone

• Two for audio shields Audio and microphone wires should be connected to the back of the existing microphone and headphone jacks, leaving existing jacks intact for use with conventional headsets. This is usually the fastest installation method. 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 Bose customer service. Mono connection diagram 10-32 V DC 1/2A 1 V+IN2 GND3 COMM L4 COMM R5 MIC HI6 MIC LO RED WHT BLU WHT

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

ENG Details on making the connections The pinouts for the optional installed connector are detailed in the table below.

PIN NUMBER COLOR PURPOSE

1 Red V+IN: Headset power (10-32 VDC). Use a 1/4 amp fuse or a 1/2 amp circuit breaker. 2 Black GND: System ground. Connect to the existing audio ground. 3 White COMM L: Phone communication, Left. 4 Blue COMM R: Phone communication, Right. 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 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. Don’t connect to the tip (PTT) segment. 6 White/Blue MIC LO: Microphone/Lo-ground. Connect to the portion of the microphone jack that corresponds to the barrel position of a headset microphone plug. 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 Black Shield from Comm L and Comm R wire pair. Mic Shield Black Shield from Mic Hi and Mic Lo wire pair. 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.64

*Measured per RTCA DO-214A Subparagraph 2.7.2.1(a) Headphone impedance Mono mode: 150 Ohm* Stereo mode: 300 Ohm* *Measured per RTCA DO-214A Subparagraph 2.3.4.1 Headphone frequency response Total span (max - min) +/- 7.5 dB* *Measured per RTCA DO-214A Subparagraph 2.7.2.1(b) Boom microphone sensitivity 400 mV RMS +/- 3 dB for 114 dB SPL at 1000 Hz* *Measured per RTCA DO-214A Subparagraphs 2.2.3.1 and

Boom microphone bias Operating range: 8.0 - 16 VDC* *Measured per RTCA DO-214A Subparagraph 2.6.2.1 Maximum ambient noise level Full active noise reduction operating range: 115 dB SPL Reduced active noise reduction operating range: 134 dB SPL Battery power source Two (2) AA alkaline batteries Battery life Up to 45 hours. Duration varies with battery quality, ambient noise levels, and use of the Bluetooth feature. Aircraft power source Aircraft power voltage range: 10 to 32 VDC Average power consumption 300 mW Fuse/breaker 1/4 amp, fast-blow fuse (AGC 1/4 amp fuse) or 1/2 amp circuit breaker Headset weight 12 ounces (headset only)TECHNICAL INFORMATION

Headset cable length 6.56 ft or 2 m NOTE: Damage could occur to avionics equipment by the use of these headsets if equipment was manufactured for use with 600 Ω headsets only. If in doubt, consult the avionics equipment manufacturer.TECHNICAL INFORMATION

The Bose A30 Aviation Headsets that are approved to TSO and ETSO C139a are appropriately marked. The product interface, cables, and microphones have been designed to function in or withstand exposure to the environmental conditions below. This article meets the minimum performance and quality control standards required by a technical standard order (TSO). Installation of this article requires separate approval. CONDITION CATEGORY Altitude and temperature A2 Salt fog S AF conducted susceptibility B Humidity B Magnetic eect A Power input B RF Susceptibility TR Vibration S, R and U Voltage spike A Shock drop 12 times, 1 m onto concrete (per DO-214a) Explosive atmosphere PassedTECHNICAL INFORMATION

ENG Environmental categories cited refer to RTCA DO-160G and RTCA DO-214a (December 18, 2013). The conditions and tests required for TSO approval of this article are minimum performance standards. Those installing this article either on or within a specific type or class of aircraft must determine that the aircraft installation conditions are within the TSO standards which include any accepted integrated non-TSO functions. TSO articles and any accepted integrated non-TSO function(s) must have separate approval for installation in an aircraft. The article may be installed only according to 14 CFR part 43 or the applicable airworthiness requirements. This device complies with FCC and ISED Canada RF radiation exposure limits for general population. It must not be collocated or operating in conjunction with any other antenna or transmitter.2

DEU LIZENZVEREINBARUNGEN The following license disclosures apply to certain third-party software packages used as components in the product. Package: LittlevGL Version 7.10.1 Copyright © 2020 LVGL LLC Package: pycrc Copyright © 2006-2015, Thomas Pircher <[e-mail]> The above is/are subject to the license terms reprinted below: MIT License Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Package: MCUXpresso Software Development Kit (SDK) ©2006-2021 NXP Semiconductors. All rights reserved. The above is/are subject to the license terms reprinted below: 3-Clause BSD License (Also called “BSD License 2.0” or “Modified BSD License”) Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

• Neither the name of the <organization> nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; ORBUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.8

DEU LIZENZVEREINBARUNGEN Packages: CMSIS Version 5.6.0 & SDK CMSIS Peripheral Drivers 2.x.x Copyright © 2010-2017 ARM Limited or its affiliates. All rights reserved. Package: Mbed TLS Version 2.26.0 Copyright © 2021 Arm Limited (or its affiliates). The above is/are subject to the license terms reprinted below: Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

“License” shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. “Licensor” shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. “Legal Entity” shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, “control” means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii)ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. “You” (or “Your”) shall mean an individual or Legal Entity exercising permissions granted by this License. “Source” form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. “Object” form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. “Work” shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). “Derivative Works” shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. “Contribution” shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, “submitted” means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as “Nota Contribution.” “Contributor” shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work.9

2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants

to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form.

3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to

You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed.

4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium,

with or without modifications, and in Source or Object form, provided that You meet the following conditions: a. You must give any other recipients of the Work or Derivative Works a copy of this License; and b. You must cause any modified files to carry prominent notices stating that You changed the files; and c. You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and d. If the Work includes a “NOTICE” text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License.

5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for

inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions.

6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks,

orproduct names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file.

7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work

(and each Contributor provides its Contributions) on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License.

8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract,

or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages.10

9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may

choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability.

END OF TERMS AND CONDITIONS

©2023 Bose Corporation Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at: http://www.apache.org/licenses/LICENSE-2.0http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.11

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

The following license disclosures apply to certain third-party software packages used as components in the product. Package: LittlevGL Version 7.10.1 Copyright © 2020 LVGL LLC Package: pycrc Copyright © 2006-2015, Thomas Pircher <[e-mail]> The above is/are subject to the license terms reprinted below: MIT License Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Package: MCUXpresso Software Development Kit (SDK) ©2006-2021 NXP Semiconductors. All rights reserved. The above is/are subject to the license terms reprinted below: 3-Clause BSD License (Also called “BSD License 2.0” or “Modified BSD License”) Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

• Neither the name of the <organization> nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; ORBUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.8

Packages: CMSIS Version 5.6.0 & SDK CMSIS Peripheral Drivers 2.x.x Copyright © 2010-2017 ARM Limited or its affiliates. All rights reserved. Package: Mbed TLS Version 2.26.0 Copyright © 2021 Arm Limited (or its affiliates). The above is/are subject to the license terms reprinted below: Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

“License” shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. “Licensor” shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. “Legal Entity” shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, “control” means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii)ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. “You” (or “Your”) shall mean an individual or Legal Entity exercising permissions granted by this License. “Source” form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. “Object” form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. “Work” shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). “Derivative Works” shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. “Contribution” shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, “submitted” means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as “Nota Contribution.” “Contributor” shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work.9

2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants

to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form.

3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to

You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed.

4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium,

with or without modifications, and in Source or Object form, provided that You meet the following conditions: a. You must give any other recipients of the Work or Derivative Works a copy of this License; and b. You must cause any modified files to carry prominent notices stating that You changed the files; and c. You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and d. If the Work includes a “NOTICE” text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License.

5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for

inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions.

6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks,

orproduct names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file.

7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work

(and each Contributor provides its Contributions) on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License.

8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract,

or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages.10

9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may

choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability.

END OF TERMS AND CONDITIONS

©2023 Bose Corporation Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at: http://www.apache.org/licenses/LICENSE-2.0http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.11

The following license disclosures apply to certain third-party software packages used as components in the product. Package: LittlevGL Version 7.10.1 Copyright © 2020 LVGL LLC Package: pycrc Copyright © 2006-2015, Thomas Pircher <[e-mail]> The above is/are subject to the license terms reprinted below: MIT License Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Package: MCUXpresso Software Development Kit (SDK) ©2006-2021 NXP Semiconductors. All rights reserved. The above is/are subject to the license terms reprinted below: 3-Clause BSD License (Also called “BSD License 2.0” or “Modified BSD License”) Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

• Neither the name of the <organization> nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; ORBUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.8

Packages: CMSIS Version 5.6.0 & SDK CMSIS Peripheral Drivers 2.x.x Copyright © 2010-2017 ARM Limited or its affiliates. All rights reserved. Package: Mbed TLS Version 2.26.0 Copyright © 2021 Arm Limited (or its affiliates). The above is/are subject to the license terms reprinted below: Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

“License” shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. “Licensor” shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. “Legal Entity” shall mean the union of the acting entity and all other entities that control, are controlled by, orare under common control with that entity. For the purposes of this definition, “control” means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii)ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. “You” (or “Your”) shall mean an individual or Legal Entity exercising permissions granted by this License. “Source” form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. “Object” form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. “Work” shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). “Derivative Works” shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. “Contribution” shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, “submitted” means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as “Nota Contribution.” “Contributor” shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work.9

2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants

to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form.

3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to

You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed.

4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium,

with or without modifications, and in Source or Object form, provided that You meet the following conditions: a. You must give any other recipients of the Work or Derivative Works a copy of this License; and b. You must cause any modified files to carry prominent notices stating that You changed the files; and c. You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and d. If the Work includes a “NOTICE” text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License.

5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for

inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions.

6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks,

orproduct names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file.

7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work

(and each Contributor provides its Contributions) on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License.

8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract,

or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages.10

9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may

choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability.

END OF TERMS AND CONDITIONS

©2023 Bose Corporation Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at: http://www.apache.org/licenses/LICENSE-2.0http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.11

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

The following license disclosures apply to certain third-party software packages used as components in the product. Package: LittlevGL Version 7.10.1 Copyright © 2020 LVGL LLC Package: pycrc Copyright © 2006-2015, Thomas Pircher <[e-mail]> The above is/are subject to the license terms reprinted below: MIT License Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Package: MCUXpresso Software Development Kit (SDK) ©2006-2021 NXP Semiconductors. All rights reserved. The above is/are subject to the license terms reprinted below: 3-Clause BSD License (Also called “BSD License 2.0” or “Modified BSD License”) Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

• Neither the name of the <organization> nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; ORBUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.8

Packages: CMSIS Version 5.6.0 & SDK CMSIS Peripheral Drivers 2.x.x Copyright © 2010-2017 ARM Limited or its affiliates. All rights reserved. Package: Mbed TLS Version 2.26.0 Copyright © 2021 Arm Limited (or its affiliates). The above is/are subject to the license terms reprinted below: Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

“License” shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. “Licensor” shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. “Legal Entity” shall mean the union of the acting entity and all other entities that control, are controlled by, orare under common control with that entity. For the purposes of this definition, “control” means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii)ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. “You” (or “Your”) shall mean an individual or Legal Entity exercising permissions granted by this License. “Source” form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. “Object” form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. “Work” shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). “Derivative Works” shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. “Contribution” shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, “submitted” means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as “Nota Contribution.” “Contributor” shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work.9

2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants

to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form.

3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to

You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed.

4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium,

with or without modifications, and in Source or Object form, provided that You meet the following conditions: a. You must give any other recipients of the Work or Derivative Works a copy of this License; and b. You must cause any modified files to carry prominent notices stating that You changed the files; and c. You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and d. If the Work includes a “NOTICE” text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License.

5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for

inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions.

6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks,

orproduct names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file.

7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work

(and each Contributor provides its Contributions) on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License.

8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract,

or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages.10

9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may

choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability.

END OF TERMS AND CONDITIONS

©2023 Bose Corporation Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at: http://www.apache.org/licenses/LICENSE-2.0http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.11

3. Retire as pilhas.PILHAS

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

The following license disclosures apply to certain third-party software packages used as components in the product. Package: LittlevGL Version 7.10.1 Copyright © 2020 LVGL LLC Package: pycrc Copyright © 2006-2015, Thomas Pircher <[e-mail]> The above is/are subject to the license terms reprinted below: MIT License Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Package: MCUXpresso Software Development Kit (SDK) ©2006-2021 NXP Semiconductors. All rights reserved. The above is/are subject to the license terms reprinted below: 3-Clause BSD License (Also called “BSD License 2.0” or “Modified BSD License”) Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

• Neither the name of the <organization> nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; ORBUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.8

Packages: CMSIS Version 5.6.0 & SDK CMSIS Peripheral Drivers 2.x.x Copyright © 2010-2017 ARM Limited or its aliates. All rights reserved. Package: Mbed TLS Version 2.26.0 Copyright © 2021 Arm Limited (or its aliates). The above is/are subject to the license terms reprinted below: Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

“License” shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. “Licensor” shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. “Legal Entity” shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, “control” means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii)ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. “You” (or “Your”) shall mean an individual or Legal Entity exercising permissions granted by this License. “Source” form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. “Object” form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. “Work” shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). “Derivative Works” shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, asa whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. “Contribution” shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, “submitted” means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as “Nota Contribution.” “Contributor” shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work.9

2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants

to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form.

3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to

You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, oer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed.

4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium,

with or without modifications, and in Source or Object form, provided that You meet the following conditions: a. You must give any other recipients of the Work or Derivative Works a copy of this License; and b. You must cause any modified files to carry prominent notices stating that You changed the files; and c. You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and d. If the Work includes a “NOTICE” text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or dierent license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License.

5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for

inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions.

6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks,

orproduct names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file.

7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work

(and each Contributor provides its Contributions) on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License.

8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract,

or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, orconsequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages.10

9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may

choose to oer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability.

END OF TERMS AND CONDITIONS

©2023 Bose Corporation Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at: http://www.apache.org/licenses/LICENSE-2.0http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.11

support.Bose.com/A30support.Bose.com/A30装箱单

support.Bose.com/A30support.Bose.com/A30

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

The following license disclosures apply to certain third-party software packages used as components in the product. Package: LittlevGL Version 7.10.1 Copyright © 2020 LVGL LLC Package: pycrc Copyright © 2006-2015, Thomas Pircher <[e-mail]> The above is/are subject to the license terms reprinted below: MIT License Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Package: MCUXpresso Software Development Kit (SDK) ©2006-2021 NXP Semiconductors. All rights reserved. The above is/are subject to the license terms reprinted below: 3-Clause BSD License (Also called “BSD License 2.0” or “Modified BSD License”) Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

• Neither the name of the <organization> nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; ORBUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.8

Packages: CMSIS Version 5.6.0 & SDK CMSIS Peripheral Drivers 2.x.x Copyright © 2010-2017 ARM Limited or its aliates. All rights reserved. Package: Mbed TLS Version 2.26.0 Copyright © 2021 Arm Limited (or its aliates). The above is/are subject to the license terms reprinted below: Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

“License” shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. “Licensor” shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. “Legal Entity” shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, “control” means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii)ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. “You” (or “Your”) shall mean an individual or Legal Entity exercising permissions granted by this License. “Source” form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. “Object” form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. “Work” shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). “Derivative Works” shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, asa whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. “Contribution” shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, “submitted” means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as “Nota Contribution.” “Contributor” shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work.9

2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants

to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form.

3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to

You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, oer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed.

4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium,

with or without modifications, and in Source or Object form, provided that You meet the following conditions: a. You must give any other recipients of the Work or Derivative Works a copy of this License; and b. You must cause any modified files to carry prominent notices stating that You changed the files; and c. You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and d. If the Work includes a “NOTICE” text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or dierent license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License.

5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for

inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions.

6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks,

orproduct names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file.

7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work

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©2023 Bose Corporation Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at: http://www.apache.org/licenses/LICENSE-2.0http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.11

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