System Overview: Signals

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The table below summarizes the input signals to and output signals from the multimedia module (MMM). The signal types are divided into directly connected signals and MOST communication. The illustration below depicts the same information with the Volvo component designations.

Input signals	Output signals
Directly connected:	Directly connected:
Power supply Ground GPS signal from GPS antenna (16/64) TMC signal from antenna amplifier (16/71)	Display screen (16/46) (color and synchronizing signals)
Via MOST communication:	Via MOST communication:
Infotainment control module (ICM) (16/94) (brake control module (BCM) and transmission control module send signals to infotainment control module (ICM) via CAN network).	Infotainment control module (ICM) (16/94) Integrated audio module (IAM) (16/1) The Phone module (PHM) (16/60) (call to point of interest (POI), the vehicle's position to the Volvo On Call service)

Fig 1: Identifying Volvo Component Designations

Courtesy of VOLVO CARS CORPORATION