CL 500 (215.375) V8-5.0L (113.960) (2000)
Block diagram COMAND telephone system, illustrated with the following equipment:
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Sound system (code 810)
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Voice control system (VCS) (code 813b)
Abbreviations:
CAN = Controller area network
D2B = Digital data bus
X11/4 = Data link connector
NOTE: The marked components are the primary components for telephone operation.
The telephone system can be controlled directly on the COMAND operating, display and control module (A40/3n1) via the multi-function steering wheel
in combination with the multi-function display in the instrument cluster (A1) or via voice control (optional).
Telephone operation
The data telegrams (e.g. dialing telephone number) for control of the telephone system are transferred to the COMAND operating, display and control
module (A40/3n1) via the digital data bus (D2B) and D2B cellular telephone interface (A59/1). The A59/1 interface transfers the data telegrams to the
cellular telephone via a separate interface.
The actual telephone connection is completed via the cellular telephone and rear bumper antenna (A2/31). This antenna is simultaneously the substitute
antenna for the emergency call system. For this reason the A2/31 antenna is connected directly to the emergency call control module (A35/8). An RF
relay integrated into the A35/8 module completes the connection to the A2/31 antenna and cellular telephone as required.
NOTE: When the telephone is in use the current audio source is automatically muted.