System Overview: Signals

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The table below summarizes the input signals to and output signals from the Bluetooth phone module (BPM). The signal types are divided into directly connected signals (via bluetooth) and MOST communication. The illustration below displays the same information with the Volvo component designations.

Input signals	Output signals
Via Bluetooth:	Via Bluetooth:
Cellphone	Cellphone
Via MOST communication:	Via MOST communication:
Infotainment control module (ICM) (3/281) Integrated audio module (IAM) (16/1) (microphone)	Infotainment control module (ICM) (3/281) Integrated audio module (IAM) (16/1) (loudspeaker sound) Audio module (AUD) (16/105) (loudspeaker sound) (only certain versions)

Fig 1: Identifying BPM & Components

Courtesy of VOLVO CARS OF NORTH AMERICA.