GF82.60-P-3021CW Satellite Digital Audio Radio (Satellite Radio) (SDAR) Function

GF82.60-P-3021CW Satellite Digital Audio Radio (Satellite Radio) (SDAR) Function
- with CODE (512) COMAND APS with DVD changer
- with CODE (536) SIRIUS satellite radio

Function requirements
^ Status "circuit 30 ON" or "circuit 15R ON"
^ The cockpit management and data system (COMAND) is authorized and in perfect working order
^ The multifunction antenna (A28/11) operates perfectly

General
The satellite digital audio radio (SDAR) control unit (N87/5) enables stations to be received from the "Sirius Satellite Radio" provider. The satellite digital audio radio system (satellite radio) (SDAR) is controlled using the COMAND controller unit (A40/3). The data or displays required for control purposes are issued over the audio/ COMAND display (A40/8) and in the instrument cluster (A1).

Operating instructions
The system can be operated over the following components:
^ Left multifunction steering wheel button group (S110)
^ Group of buttons on right of multifunction steering wheel (S111)
^ Buttons for audio/COMAND control panel (A40/9)

Function sequence for satellite digital audio (SDAR) radio
The Sirius satellite radio signal is transmitted 3 times in order to achieve a reception diversity (by 2 satellites and one terrestrial station). The multifunction antenna receives all 3 channels (Sat 1, Sat 2, terrestrial station).

The multifunction antenna routes the signals over a coaxial cable to the satellite digital audio radio (SDAR) control unit. The satellite digital audio radio (SDAR) control unit receives and decodes the signals. Finally the satellite digital audio radio (SDAR) control unit transmits the decoded, digital radio signals over the Media Oriented System Transport (MOST) to the COMAND controller unit and for vehicles with code (810) Sound system to the sound system amplifier control unit (N40/3). Audio output is emitted at the following speakers:
^ Left front door speaker (H4/1)
^ Right front door speaker (H4/2)
^ Left rear door speaker (H4/3)
^ Right rear door speaker (H4/4)
^ Center instrument panel speaker (H4/27)
^ Bass speaker (H4/29)
^ Left rear surround speaker (H4/54)
^ Right rear surround speaker (H4/57)

For vehicles except code (810) Sound system, data are exchanged over MOST between the satellite digital audio radio (SDAR) control unit and the COMAND controller unit. The audio output is forwarded directly over discrete lines by the COMAND controller unit via the following speakers:
^ Left front door speaker
^ Right front door speaker
^ Left rear door speaker
^ Right rear door speaker
^ Center instrument panel speaker

Diagnosis
The COMAND controller unit is the diagnosis gateway for all MOST subscribers. Diagnosis is performed via the diagnostic CAN and the front SAM control unit with fuse and relay module (N10/1) via the interior CAN to the COMAND controller unit using a KW-2000 event log.