Digital Audio Broadcasting control unit, component description - GF82.62-P-5000TM
MODEL 211, 219 with CODE (537) Digital radio with CODE (833) Great Britain version as of model year 09/YoM 08
Shown on model 211.0
Location
The Digital Audio Broadcasting control unit is located in the trunk behind the right wheel well.
Depending on the equipment version, one of the following audio devices is installed (hereinafter called "Audio equipment"):
- Radio (A2), with code 510 Audio 20 with CD changer
- Radio control panel and navigation unit (A2/56), with code 525 MB Audio 50 APS radio or with code 511 Audio 50 APS with DVD changer
- COMAND operating, display and controller unit (A40/3), with code 527 COMAND APS with single DVD drive (with navigation) or with code 512 COMAND APS with DVD changer
Task
- Receive signals
- Decoding of signals
- Transmitting signals
Receive signals
Direct lines
- Power supply via circuit 31 and circuit 30g via one direct line each
- Electronic wake-up for Media Oriented System Transport (MOST) via one direct line
- Digital Audio Broadcasting (DAB) L-band signals via a coaxial line from the roof antenna (A2/49)
- Band III signals via a coaxial line from the right antenna amplifier module (A2/65)
Decoding of signals
The Digital Audio Broadcasting control unit decodes the DAB-L band signals and Band III signals to obtain PCM (Pulse-Code-Modulation) signals.
Transmitting signals
MOST
- PCM signals:
- Audio signals to sound system amplifier (N40/3), with code 810 Sound system
- Audio signals to "audio equipment", except code 810 Sound system
- DAB status and station lists to "Audio unit"