Structure and inner electrical connection
The AUX-IN connection is connected with the headunit via a 4-pin plug connection.
| Item | Explanation |
|---|---|
| 1 | AUX-IN connection |
PIN ASSIGNMENT SPECIFICATION
| Pin | Explanation |
|---|---|
| SIG | Ground connection |
| SIG2 | Audio line (left channel) to headunit |
| SIG3 | Audio line (right channel) to headunit |
| 1 pin not used. | |
For the AUX-IN connection with a USB port, the USB port is connected to the USB hub via a bidirectional data line or directly to the telephone control unit.
- Optional equipment (SA) 6FL "USB audio interface"
For the AUX-IN connection with a USB port, the AUX-IN connection is connected to the telephone control unit via a 4-pin plug connection.
- Optional equipment (SA) 6NF "Extended connectivity of the music player in the mobile phone"
For the AUX-IN connection with a USB port, the AUX-IN connection is connected to the eject box and the telephone control unit via a 6-pin plug connection.
| Item | Explanation |
|---|---|
| 1 | AUX-IN connection with a USB port (shown: SA 6FL with SA 6NF) |
| 2 | USB connection |
| 3 | AUX-IN connection |
PIN ASSIGNMENT SPECIFICATION
| Pin | Explanation |
|---|---|
| AUX-IN connection | |
| SIG | Ground connection, connection to the telephone control unit |
| SIG2 | Audio line (left channel), connection to the telephone control unit |
| SIG3 | Audio line (right channel), connection to the telephone control unit |
| SIG4 | Ground connection, connection to eject box (only for SA 6NF) |
| SIG5 | Audio line (left channel), connection to eject box (only for SA 6NF) |
| SIG6 | Audio line (right channel), connection for eject box (only for SA 6NF) |
| USB connection | |
| SIG7 | Data line +, e.g. connection to USB hub |
| SIG8 | Data line -, e.g. connection to USB hub |
| SIG9 | Voltage supply 5 V, e.g. connection to USB hub |
| SIG10 | Ground connection, e.g. connection to USB hub |