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Nokia headset / handsfree HDB-5 connector and schematics pinout

connector or cable wiring scheme

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Wiring for the nokia 2.5mm 4-pole headset socket of Nokia 1100, 1101, 1110, 1600, 2100, 2300, 2500, 2650, 2652, 3210, 3310, 3330, 3410, 3510, 3510i, 3650, 3660, 5210, 6030, 6060, 6510, 6600, 7280, 7380 7650, 8210, 8310, 8800, 8850, 8890, 8910, 8910i cell phones (except some smartphones)

4 pin 3.5mm (2.5mm) plug connector layout

4 pin 3.5mm (2.5mm) plug connector
at the headset cable (2.5mm jack used)




Pin		 Name Direction Description
1 Tip Speaker +
2 Ring 1 Microphone +
3 Ring 2 Speaker -
4 Sleeve Microphone -
The answer/end button should be connected across the microphone connections.


Nokia 3210 handsfree / headset schematic

Nokia headset schematic

Nokia 8210 handsfree / headset schematic

Nokia handsfree schematic

Both schematics made by Goran Jurkovic

Speaker is 30 Ohm

Pinouts.ru > Nokia cell phones ports pinouts listing >  Pinout of Nokia headset / handsfree HDB-5 connector and schematics and layout of 4 pin 3.5mm (2.5mm) plug connector
Document status: correct
Source(s) of this and additional information: discuss.treocentral.com, http://free-zg.htnet.hr/GoranJurkovic/nokia/ 9 reports
Last updated at Mon Sep 4 2006. Submit additions or corrections for this document. Is this document correct or incorrect? What is your opinion?
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