"USB/audio interface" Components
"USB/audio interface" consists of the following components:
- Interface box High (ULF-SBX-High)
- USB hub
- Audio socket with USB interface
- Application software in the head unit
The USB interface is on the center console and is protected by a sliding cover.
Simultaneous use of the USB interface and the 12 V socket for charging the mass storage device is not recommended.
Depending on the USB lead used, the mass storage device may be able to be charged through the USB interface. However, the power consumption of the mass storage device must not exceed the maximum level of 500 mA permitted by the SBX High.
The (SBX High) interface box is capable of performing the following tasks:
- USB connection for USB/audio interface
- Bluetooth interface with hands-free mode and phone book
- Basic voice input and activation system through the telephone
| Index | Explanation |
|---|---|
| 1 | Bluetooth connection (Not in US) |
| 2 | 54-pin connector |
| 3 | MOST connection |
| 4 | USB connection |
The ULF-SBX High interface box is always fitted if the "USB/audio interface" is fitted to the vehicle.
Although both the ULF-SBX-H and the TCU may be fitted in a vehicle at the same time, the TCU always provides the telephone functions. The telephone functions are not available in the ULF-SBX High and the module is only installed to provide the "USB audio interface" option.
The (TCU) and the (ULF-SBX-H) interface box control units are connected to the MOST bus.
The ULF-SBX-H decodes the digital audio signals collected through the USB interface.
The audio files are then broadcast through the MOST.
The analog LF (low frequency) signals from the audio socket are also broadcast on the MOST.
The audio signal is transmitted digitally on the MOST bus to the HiFi amplifier and the amplifier distributes this signal to all the vehicle's speakers.
The ULF-SBX High supports USB 1.1 with the following technical data:
- Maximum data rate: 12 Mbit/s
- Voltage: 5 V
- Current: 500 mA
The ULF-SBX High is located in the luggage compartment on the left-hand side.
| Index | Explanation |
|---|---|
| 1 | Telematics control unit (TCU) |
| 2 | Interface box (ULF-SBX-High) |