# Ericsson 218/337/318/388

UNKNOWN CONNECTOR

Pin | Dir | Description
--- | --- | ---
1 |  | Voice
2 |  | +5V=External Power, 0V=Battery
3 |  | Ext Speak control
4 | - | Analog GND
5 |  | Voice
6 |  | +5V=POWER ON, 0V=POWER OFF
7 |  | Charger control
8 | - | Digital/DC GND
9 |  | 0V=normal,+5V=test, +12V=test+flash
10 |  | Hook
11 |  | TTL serial in
12 |  | TTL serial out
13 |  | 0V for aprox 1 sec = POWER ON/OFF
14 |  | DC Power supply

Direction is phone relative world.

Contributor: Joakim Ögren

Source:
Ericsson 218/318/337/388 pinout at Technick.net

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May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2001-06-08