# Nokia 2110

    +-----------------------------------------+
    |    16 15 14 13 12 11 10 9         |
    | ANT  o  o  o  o  o  o  o  o    Charge |
    | (O)                  [ ] (o)   |
    |    o  o  o  o  o  o  o  o         |
    |    8  7  6  5  4  3  2  1         |
    +-----------------------------------------+

Pin | Name | Description
--- | --- | ---
1 | GND | Digital ground
2 | MIC/JCONN | External audio input from accessories or handsfree microphone. Multiplexed with junction box connection control signal
3 | AGND | Analogue ground for accessories
4 | TDA | Transmitted DBUS data to the accessories
5 | M2BUS | Serial Bidirectional data and control between the handportable and accessories
6 | HOOK/RXD2 | Hook indication. HP has a 100KE pull-up resistor
7 | PHFS/TXD2 | Handsfree device power on/off, data to flash programming device
8 | VCHAR | Battery charging voltage
9 | GND | Digital ground
10 | EAR/HFPWR | External Audio output to accessories or handsfree speaker
11 | DSYNC | DBUS data bit sync clock
12 | RDA | DBUS recieved data from the accessories
13 | BENA | Power supply to headset adapter
14 | VF | Programming voltage for FLASH
15 | DCLK | DBUS data clock
16 | VCHAR | Battery charging voltage

Contributor: Joakim Ögren

Source:
Nokia 2110 pinout at Technick.net

Copyright © The Hardware Book Team 1996-2001.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2001-06-08