GoTo Connector

Ericsson 688/888

UNKNOWN CONNECTOR

Pin Description
1 + external power supply (7.2Volt - 600mA)
2 RS232 input (TTL)
3 GND (digital)
4 RS232 output (TTL)
5 +5V output
6 Test. Switch phone off and provide +5V and switch back on. (set comms at 9600, n,8,1)
7 Mute
8 Internal/external mic and ear (0=External - open=Internal)
9 GND (analogic)
10 ? Related to Mic/Speak
11 BF in
12 BF out