Audi 2003 A8 Technical Features page 60

Electrical System
The familiar CAN bus (two-wire bus) is
supplemented by the following bus systems:
– LIN bus (single-wire data bus)
– MOST bus (optical data bus)
TM
– Bluetooth (wireless data bus)
LIN bus
LIN stands for Local Interconnect Network.
Local Interconnect means that all control
units are located within a limited structural
space (e.g. roof). This is also referred to as
"local sub-system".
Data are exchanged between the individual
LIN bus systems in a vehicle by one control
unit in each case using the CAN data bus.
The LIN bus system is a single-wire data bus.
The wire has a basic colour (violet) and a code
colour.
The wire cross-section is 0.35 mm
not necessary.
The system permits data exchange between
one LIN master control unit and up to 16 LIN
slave control units.
Data bus diagnostic
interface (gateway)
Diagnostic connection
60
2
. A screen is
LIN master
Diagnosis CAN
LOCAL INTERCONNECT NETWORK
Design and operation of the LIN bus
are described in SSP 286 – New data bus
systems.
SSP282_031
LIN slave 1
LIN slave 2