PDA connectors and cables
4 pin 3.5mm
(2.5mm) plug connector at the headset cable (with an addition
sleve)
| Pin | Signal | Description |
|---|---|---|
| 1 (Tip) | Left ear | white |
| 2 (Ring 1) | Right ear | red |
| 3 (Ring 2) | Mic/Switch 1 (Answer Call) | blue |
| 4 (Sleeve) | Ground | Copper |
| not drawn (Outer Sleeve Ring) | Switch 2 (End Call) |
Notes
- There are two buttons on the remote: one for pickup and one for hangup.