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Ericsson 218/337/318/388 cell phones pinout

Ericsson 218/337/318/388 cell phones pinout

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 <-- Rx (TTL serial in)
12 --> Tx (TTL serial out)
13 <-- 0V for aprox 1 sec = POWER ON/OFF
14 <-- DC Power supply

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