Ericsson 688/888
Pinout
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 |
Contributions
Sources
- Ericsson 688/888 pinout at Technick.net