CL 550 4MATIC (216.386) V8-5.5L (273.961) (2009)
MOST
Depending on the equipment, the COMAND controller unit communicates with the following control units via MOST:
-
TV combination tuner (analog/digital) (A90/1) (with code (863) Digital/analog TV tuner)
-
Voice control system control unit (VCS [SBS]) (N41/3) (up to 31.5.09 with code (813) Voice control system (VCS [SBS]))
-
Digital Audio Broadcasting control unit (N87/3) (with code (537) Digital radio)
-
Audio tuner control unit (N93/1)
-
Universal Portable Cell Phone Interface (UPCI [UHI]) control unit (N123/1) (up to 31.5.09 with code (386) Preinstallation for telephone "cell
phone", UPCI system)
-
Media interface control unit (N125/1) (as of 1.6.09 with code (518) Media interface)
Evaluation of input factors
The input factors are processed and evaluated by the COMAND controller unit.
Actuates output media
Output media are actuated with the following connection:
^
Direct line
^
CAN
^
MOST
Direct line
The following output media are actuated via direct lines:
-
COMAND display or SPLITVIEW display via LVDS line
-
DVD player (A40/4) (in model 221 with code (864) Rear entertainment system) via LVDS line
LVDS lines are used to transfer picture and video signals.
The following system components are actuated internally:
-
Map navigation with hard disk (HDD) as a data memory (with code (527) COMAND APS with single DVD drive (with navigation))
-
Card reader for Personal Computer Memory Card International Association (PCMCIA) cards with MP3 files
-
DVD ROM drive (single slot or 6-disk DVD changer with single slot (with code (814) DVD changer))
CAN
The signals are transmitted via telematics CAN and central CAN. The functions resulting therefrom are described in the corresponding function
descriptions (see block diagram or function schematic).
MOST
Depending on the equipment, the COMAND controller unit communicates with the following control units via MOST:
-
TV combination tuner (analog/digital)
-
Voice control system (VCS [SBS]) control unit
-
Digital Audio Broadcasting control unit
-
Audio tuner control unit
-
Universal Portable CTEL Interface (UPCI [UHI]) control unit
-
Media interface control unit
Design
Integrated into the COMAND controller unit are the following:
-
DVD drive (without code (814) DVD changer)
-
DVD changer (with code (814) DVD changer)
-
Central computer
-
Interfaces to MOST, telematics CAN, and central CAN
-
Navigation processor (with code (527) COMAND APS with single DVD drive (with navigation))
-
Hard disk
Diagnosis
The COMAND controller unit serves as the diagnostic interface for all control units at the MOST and at the telematics CAN. The errors that have
occurred can be read out via diagnostic CAN (CAN D) and data link connector (X11/4).