BMW F48 - APIX Data Transfer System

F48�General�Vehicle�Electronics
1.�Vehicle�Electrical�System
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1.3.2.�Local-CAN
With�corresponding�optional�equipment,�the�Local�Controller�Area�Network�connects�the�optional
equipment�system�(SAS)�with�the�control�unit�for�the�camera-based�driver�support�systems�(KAFAS).
The�Local�Controller�Area�Network�has�a�data�transfer�rate�of�500kBit/s.
1.3.3.�USB
Depending�on�the�equipment,�the�following�USB�connections�are�possible:
• from�the�headunit�to�the�Telematic�Communication�Box�(TCB)
• from�the�headunit�to�the�telephone�base�plate
• from�the�headunit�to�the�USB�port
1.3.4.�APIX
The�central�information�display�(CID)�and�the�Head‐Up�Display�(HUD)�in�the�F48�are�not�connected�to
a�vehicle�data�bus.�Both�control�units�are�connected�directly�to�the�headunit�via�an�APIX�interface�or
the�instrument�cluster�(KOMBI).�APIX�(Automotive�Pixel�Link)�is�a�bit-serial�data�transfer�system.
APIX
Index Explanation
1 APIX�transmitter
2 Message�to�be�sent�(max.�1Gbit/s)
3 APIX�receiver
4 Confirmation�message�(62.5Mbit/s)