Abstract: Disclosed is a connector for providing audio signals. The connector can include an audio signal and power cable having a first end and a second end, and an interface communication connector disposed at least proximate to the first end. Further, the connector can include a ground, power, and audio signal connector disposed at least proximate to the second end, wherein the ground, power, and audio signal connector is configured to accept a plurality of different audio signal and power cables from different noise-protection devices having differing pin configurations. Further still, the connector can include at least a first audio input signal cable in contact with the audio signal and power cable, wherein the audio input signal cable is configured for transmitting one or more of the audio signals through the interface communication connector to at least one of a vehicle and an extra-vehicular source.

Abstract: A connector for providing audio signals to reduce noise during transmissions. A multi-pin connector receives audio signals and a ground, power, and audio signal connector transfers the audio signals to a noise-reduction device. An audio output transfers audio signals from the multi-pin connector to an in-ear system and at, least one ear-protection device. A multi-pin signal separator in communication with the multi-pin connector, the ground, power, and audio signal connector, and the audio output can receive all or a portion of the audio signals from the multi-pin connector, the ground, power, and audio signal connector, and the audio output and can selectively pass the audio signals to at least one of: the in-ear system and the at least one ear-protection device, while accepting a plurality of pin configurations.

Abstract: An audio signal conveying power supply configured to provide an output voltage to an electrically powered helmet, an additional audio headset or both. The housing having an audio and power signal inlet port to receive audio signals and power from a vehicle and an audio and power signal outlet port or transmitting audio signals and power to an electrically powered helmet using an independent audio cable connecting between the audio and power signal inlet port to the audio and power signal. A control circuit connected the at the power converted to operate an on/off switch, an active noise reduction switch, a low battery light, a fault light, and a helmet power switch.

Abstract: An earplug connector for simultaneously providing an audio signal from a vehicle or an extra-vehicular source to a pilot while providing power to a noise reduction device while operating the vehicle. The earplug connector has a multi-pin connector for receiving audio signal and power from a pilot interface assembly connected to the vehicle. A ground, power, and audio signal connector transfers power to a noise reduction device worn by a pilot. An audio output continuously transfers audio signals from the multi-pin connector to earplugs and a multi-pin signal separator is in electrical and audio communication between the multi-pin connector and the ground, power, and audio signal connector. The audio output receives audio signals from the multi-pin connector and selectively passes the audio signals to the earplugs while transferring power to a noise reduction device while accepting a plurality of pin configurations.