If you are a pilot or an aviation enthusiast, you must be familiar with Bose A20 aviation headset. It is one of the most popular headsets in the aviation industry that offers superior noise-canceling capabilities and excellent audio quality. The Bose A20 headset is also known for its comfortable design and durable construction that can withstand the harsh environment of the cockpit.
One of the crucial aspects of using the Bose A20 headset is understanding its wiring diagram. It helps you connect the headset to communication devices such as radios, intercoms, and other avionics systems. In this article, we will guide you through the Bose A20 wiring diagram and help you understand how to connect your headset to different avionics systems.
Understanding the Bose A20 Wiring Diagram
The Bose A20 headset comes with a six-pin Lemo connector that allows you to connect it to various communication devices. The six pins on the Lemo connector correspond to different audio channels and functions that are essential for communication in the cockpit. Here is a breakdown of each pin on the Bose A20 wiring diagram:
| Pin | Function |
|---|---|
| 1 | AUDIO LEFT |
| 2 | AUDIO RIGHT |
| 3 | MIC AUDIO |
| 4 | GROUND |
| 5 | MIC RETURN |
| 6 | POWER |
It is essential to understand the function of each pin on the Bose A20 wiring diagram to connect your headset correctly. Let’s take a closer look at each pin and its corresponding function:
Pin 1: AUDIO LEFT
Pin 1 on the Bose A20 wiring diagram is for the left audio channel. It carries the audio signal from the communication device and delivers it to the left earcup of the headset. The left channel is crucial for hearing communication from the pilot or co-pilot in the cockpit.
To connect the Bose A20 headset to the communication device, you need to connect pin 1 to the left audio channel of the device. You can do this using an appropriate adapter or cable that matches the connector of your communication device.
Pin 2: AUDIO RIGHT
Pin 2 on the Bose A20 wiring diagram is for the right audio channel. It carries the audio signal from the communication device and delivers it to the right earcup of the headset. The right channel is crucial for hearing communication from air traffic control or other communication sources outside the cockpit.
To connect the Bose A20 headset to the communication device, you need to connect pin 2 to the right audio channel of the device. You can do this using an appropriate adapter or cable that matches the connector of your communication device.
Pin 3: MIC AUDIO
Pin 3 on the Bose A20 wiring diagram is for the microphone audio signal. It carries the audio signal from the microphone and delivers it to the communication device. The microphone audio signal is essential for transmitting your voice to the communication device and other communication sources.
To connect the Bose A20 headset to the communication device, you need to connect pin 3 to the microphone input of the device. You can do this using an appropriate adapter or cable that matches the connector of your communication device.
Pin 4: GROUND
Pin 4 on the Bose A20 wiring diagram is for the ground connection. It provides the grounding for the audio and microphone signals to prevent noise and interference. The ground connection is essential for maintaining the audio quality and clarity of the communications.
To connect the Bose A20 headset to the communication device, you need to connect pin 4 to the ground or common connection of the device. You can do this using an appropriate adapter or cable that matches the connector of your communication device.
Pin 5: MIC RETURN
Pin 5 on the Bose A20 wiring diagram is for the microphone return signal. It carries the return signal from the communication device to the microphone. The microphone return signal is essential for providing the reference voltage and signal path for the microphone audio signal.
To connect the Bose A20 headset to the communication device, you need to connect pin 5 to the microphone output of the device. You can do this using an appropriate adapter or cable that matches the connector of your communication device.
Pin 6: POWER
Pin 6 on the Bose A20 wiring diagram is for the power supply. It provides the power supply to the active noise cancellation (ANC) circuit and other features of the headset. The power supply is essential for maintaining the performance and functionality of the headset.
To power the Bose A20 headset, you need to connect pin 6 to a power source that matches the voltage and current requirements of the headset. The power source can be a battery pack or an aircraft power supply.
FAQs
Q: How do I connect my Bose A20 headset to an intercom?
A: To connect your Bose A20 headset to an intercom, you need to use an appropriate adapter cable that matches the connector of the intercom. You can connect the six-pin Lemo connector of the Bose A20 headset to the adapter cable and then connect the adapter cable to the intercom using the appropriate connector.
Q: Can I use my Bose A20 headset with a portable radio?
A: Yes, you can use your Bose A20 headset with a portable radio. You need to use an appropriate adapter cable that matches the connector of the radio. You can connect the six-pin Lemo connector of the Bose A20 headset to the adapter cable and then connect the adapter cable to the radio using the appropriate connector.
Q: How do I adjust the volume of my Bose A20 headset?
A: You can adjust the volume of your Bose A20 headset using the control module attached to the headset cable. The control module has a volume control dial that you can use to adjust the volume of the headset. You can also use the mute button on the control module to mute the headset when necessary.
Q: How do I clean my Bose A20 headset?
A: To clean your Bose A20 headset, you can use a soft cloth dampened with water or a mild soap solution. Avoid using harsh chemicals or abrasive materials that can damage the headset. You can also use a soft-bristled brush to remove any dirt or debris from the ear cushions and other parts of the headset.
Q: How do I store my Bose A20 headset?
A: To store your Bose A20 headset, you can use the carrying case that comes with the headset. Make sure to remove the ear cushions and other removable parts before storing the headset. Store the headset in a cool and dry place away from direct sunlight and moisture.
Conclusion
The Bose A20 headset is a reliable and high-performance aviation headset that requires proper wiring and connection to deliver excellent audio quality and noise-canceling capabilities. Understanding the Bose A20 wiring diagram is crucial for connecting the headset to different communication devices and avionics systems. We hope this comprehensive guide has helped you understand the Bose A20 wiring diagram and how to connect your headset to various systems.
