Pinouts of Connectors

Ericsson T10S, T18S, A1018S, 628, 688, 788 mobile phones connector pinout

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12 pin Ericsson mobile special connector pin-out & layout
12 pin Ericsson mobile special connector  at the cellular phone
Pin Description Comments
1 Audio Out  
2 Audio In  
3 Accessory Sense. GND to enable External Mic and Speaker (Analog)  
4 Audio Signal GND  
5 Portable handsfree In. Internal/external mic and ear (0=External - open=Internal)
6 Music Mute Out, High when phone is used.  
7 In Flash Memory Voltage and Service Voltage,
In 0V=normal,+5V=test, +12V=test+flash		 Test. Switch phone off and provide +5V and switch back on. (set comms at 9600, n,8,1)
8 Logic Out, Status On. Sources over 100mA. +5V output
9 TX (Data Out) from Mobile Station. Debug messages appear here at 112KBaud when in debug mode. TTL
10 Digital Ground and DC return  
11 Rx (Data in) TTL
12 DC in for battery charging, DC out for accessory power + external power supply 7.2Volt - 600mA

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Pinouts.ru > Pinouts of cellular phones connectors >  Pinout of Ericsson T10S, T18S, A1018S, 628, 688, 788 mobile phones connector and layout of 12 pin Ericsson mobile special connector

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