Media Oriented System Transport (Most); Connectors - Aston Martin V8 Vantage Workshop Manual

Wiring and Circuit Protection (18.01)
Electric Distribution/Electronic Control (18.00)
Media Oriented System Transport
(MOST)
A fibre optic carries out a similar function to that of a wire in
that it transmits data signals. The differences being that
where a wire is made up of copper strands in an insulated
sleeve a fibre optic is a plastic tube with a highly polished
reflective inside surface.
The fibre optic carries the data in the form of a pulse of light,
which is sent via an infrared transmitter and picked up at the
next component in the loop via an infrared receiver. The
light pulse is then converted to an electrical signal that is
used by that module or component.
The CAN sends signals around the vehicle where the
modules or components remove their specific signals. The
fibre optic is in a loop with the module components in that
loop, one fibre goes in and one fibre goes out. This is shown
below.
Fibre optic in harness
Fibre Optic
18-1-6

Connectors

There are 2 types of interconnect shown on the circuits.
Each connector is given a dedicated 'C' number. The
number after the dash is the pin number, also known as the
cavity number. The example below is C0582 that when
checked on the attached list refers to the CEM Connector
Cockpit 2 (C3).
The 1st type is shown for a connector that is on a module or
component with a mating harness connector attached to it.
Connector C number
Connector pin / cavity number
1 FO
The 2nd type is shown for a connector on a harness with the
mating connector on another harness. This is known as an
Inline. Again the above naming convention applies.
Workshop Manual
C0582 9
October 2005