3 pin stereo plug connector at the headset cable.
This page documents the headset jack connector found on most cordless and cellular phones for use with a combined microphone and speaker accessory. The layout is common across a wide range of handsets that use this style of connector. Only the pins relevant to the headset cable are listed below.
| Pin | Name | Direction | Description |
|---|---|---|---|
| 1 | Mic | IN | Microphone |
| 2 | Spk | OUT | Speaker |
| 3 | Gnd | - | Ground |
Notes
Pin numbers refer to the connector on the headset cable; pins not listed are unused.
References
- IEC 60603-11:1992 — Connectors for frequencies below 3 MHz for use with printed boards, Part 11: audio connectors (2.5, 3.5 and 6.3 mm) — International Electrotechnical Commission.