Распиновка, расположение выводов и внешний вид разъема сотового телефона:
Nokia 31xx/81xx
(at the cellular phone)
NOKIA SPECIAL 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
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
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)
Contributor:
Joakim Цgren
Source:
Nokia 31xx/81xx pinout at Technick.net
Copyright © The Hardware Book Team 1996-2004.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2002-01-10