Rj9 To 3 5mm Wiring Diagram. This male 25mm to male rj9 adapter allows you to connect any older telephones that has a 25mm headset jack to a wireless base station or wired amplifier. Original raster image created by pedro rebello de andrade in april 2007 based on direct analysis of working wiring situation.
On the 25 headset plug i believe that the tip is mike ring is headphone and ground is common to both. Filerj9 handset diagrampng wikimedia commons. Now a days 35mm is the universal audio jack size to be found in smartphones pc and laptops.
While many business class telephones us an rj 9 type connector for a headset some manufacturers do use 25mm or 35mm 3 conductor connectorslooking around my bench i can find a couple of examples.
The adapter outputs binaural sound for stereo headsets meaning you will hear sound out of both ears. Compatible with all models of cisco voip phones having extra rj9 connector for headset. This tutorial will show you how to connect a 35 mm audio jack from an old pair of headphones to the audio input of your diy audio projects. 4p4c rj9rj10 to 35mm female headset adapter cable stereo converter telephone cord for iphone cisco ip phones 7931g 7940 7941 7942 plantronics mx10 vista modular 30cm 36 out of 5 stars 100 699 6.