 |
| (Looking from outside on the connector, keypad is on top. This description is valid for 51xx, 61xx and 71xx phones) |
| Pin | Name | Funktion | sonstiges | in / out |
| 1 | CHARGE | Charging voltage | 0..8.5V, 0..850mA | in |
| 2 | CCONTROL | Charging control | PWM, 32..37 Hz, 1..99% | out |
| 3 | MIC / XMIC | Analog audio in | 1Vpp / 100 Ohm | in |
| Analog audio in (Headset) | 200mVpp / 2.5 KOhm / BIAS 100..600uA | in | ||
| Accessory mute | > 2.5V not muted < 1.5V muted |
out | ||
| Headset detection | > 1.5V no Headset / Data mode < 1.3V Headset connected |
in | ||
| 4 | AGND | Analog ground | ||
| Power Source for DLR3-cable | 6210 : 2.8 V, 7110 : 3.3 V | out | ||
| 5 | EAR / XEAR | Analog audio out | U = 80mV - 1.0V | out |
| Accessory detection | < 0.2V : Headset connected 0.5V : Accessory connected 2.8V : no accessory connected |
in | ||
| PTT-Button | connected to AGND when pressed | in | ||
| 6 | MBUS | Bidir. serial bus | 9600 bps | in / out |
| 7 | FBUS RX | Serial data in | 9600 - 230.400 bps < 0.8V : '0' > 2.0V : '1' |
in |
| 8 | FBUS TX | Serial data out | 9600 - 230.400 bps < 0.8V : '0' @ max. 4mA > 1.7V : '1' @ max. 4mA |
out |
| 9 | SGND | Signal ground / Charging ground |