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What are the pin-outs for line cables and headsets?

April 26, 2017cables headsets line pin-outs

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What are the pin-outs for line cables and headsets?

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Telex Intercom Headsets: 4-Pin: Pin 1: Microphone Common Pin 2: Microphone “Hot” Pin 3: Headphone Common Pin 4: Headphone “Hot” 5-Pin: Pin 1: Microphone Common Pin 2: Microphone “Hot” Pin 3: Headphone Common Pin 4: Left Headphone “Hot” Pin 5: Right Headphone “Hot” RTS Two-Wire Intercom: Pin 1: Common Pin 2: Channel 1 Audio + 30VDC Pin 3: Channel 2 Audio Telex Audiocom: Pin 1: Common Pin 2: Audio Low + 24VDC Pin 3: Audio High + 24VDC ↑