Telex Intercom Wiring Configurations

Common Telex Wiring configurations for their Intercom Headsets:

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



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