Nokia 16xx, 3110, 8110 cell phones pinout

connector or cable wiring scheme

12 pin Nokia 8110 cell phone special connector layout

12 pin Nokia 8110 cell phone special connector
at the cellular phone

Pin	Name	Description
1	GND	Charger/System Ground
2	V_OUT	Accessory Output Supply. (3.4V...10V - 50mA)
3	XMIC	External Microphone Input and Accessory Identification
4	EXT_RF	External RF Control Input
5	TX	FBUS Transmit (N/C in 1610?)
6	MBUS	Serial Control Bus
7	BENA	Not Connected
8	SGND	Signal Ground
9	XEAR	External Speaker and Mute Control
10	Hook	Hook Signal
11	RX	FBUS Receive (N/C in 1610?)
12	V_IN	Charging Supply Voltage (Max 16V)

XMIC: External Microphone Input and Accessory Identification

U low	U high	Description
1.15 V	1.4 V	Compact Handsfree Unit Connected
1.7 V	2.05	Headset Adapter Connected
2.22 V	2.56 V	Infra Red Link Conneceted

EXT_RF: External RF Control Input

U low	U high	Description
0.0 V	0.5 V	External RF in use
2.4 V	3.2 V	Internal Antenna in use

MBUS: Serial Control Bus

U low	U high	Description
0.0 V	0.5 V	Logic Low Level
2.4 V	3.2 V	Logic High Level

XEAR: External Speaker and Mute Control

U low	U high	Description
0.0 V	0.5 V	Mute ON (HF Speaker Mute)
1.0 V	1.7 V	Mute OFF (HF Speaker Active)

Hook: Hook Signal

U low	U high	Description
0.0 V	0.5 V	Hook Off (Handset in Use)
2.4 V	3.2 V	Hook On (Handset in Use)

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Pinouts.ru > Nokia cell phones ports pinouts listing > Pinout of Nokia 16xx, 3110, 8110 cell phones and layout of 12 pin Nokia 8110 cell phone special connector	Document status:	unknown
Source(s) of this and additional information: Nokia 31xx/81xx pinout at Technick.net, from Hardware Book	0 reports
Last updated at Sat Jun 25 2005. Submit additions or corrections for this document.	Is this document correct or incorrect? What is your opinion?

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