GF82.85-P-3004QN Data Exchange Between the Operating Unit and Instrument Cluster, Function

GF82.85-P-3004QN Data Exchange Between The Operating Unit And Instrument Cluster, Function
- with CODE (525) MB Audio 50 APS radio


Operation of the radio and navigation unit (A2/56) using the multifunction steering wheel
Various systems can be operated and information about these systems can be displayed via the Media Oriented System Transport (MOST) system using the left multifunction steering wheel button group (S110), right multifunction steering wheel button group (S111), and the multifunction display (A1p13) of the instrument cluster (A1). These include:
^ Audio systems (radio, CD drive)
^ Telephone

All data is exchanged between the multifunction steering wheel and the radio (A2) via the local interconnect network (LIN) bus and the class B (interior) controller area network bus (CAN-B).

All signals of the left multifunction steering wheel button group (S110) and right multifunction steering wheel button group (S111) on the multifunction steering wheel are voltage-coded, read by the steering column module (N80) via the LIN bus, and passed on the CAN-B.
The instrument cluster (A1) detects the coded messages and displays the system currently active or currently operated (audio or telephone) on the multifunction display (A1p13).
At the same time, the radio and navigation unit (A2/56) handles the commands for controlling the functions within the MOST system, converts them into light pulses, and actuates the necessary system components such as the CD player with changer (in glove compartment) (A2/6).

Operating and display options of the multifunction display (A1p13)
The radio and navigation unit (A2/56) can display the following information:
^ Set frequency range and memory location number (where applicable)
^ Name (only for radio data system) and frequency of radio station
^ Information as to whether station search takes place via frequency or via the stored station list

Operation:
^ Volume
^ Station search via station list or frequency, next station or previous station

The CD player with changer (in glove compartment) (A2/6) can display the following information:
^ Number of CD currently playing
^ Number of CD track currently playing

Operation:
^ Volume
^ Select track (next or previous track)

The portable CTEL (A34/6) can display the following information:
^ Request to enter PIN
^ Name of service provider
^ Vehicle outside transmit or receive range of telephone network
^ Telephone number (if stored) or name of caller (if also transferred via radio).

Operation:
^ Volume
^ Selection of name from stored phone directory, display of phone number and memory location number of party being called.
^ Start call
^ Accept a call
^ Dial repeat
^ Reject or end a call