Optical Bus

The MOST bus is a plastic optical waveguide. The MOST bus is coded in green in the E65.

The light wavelength is 650 Nm (red light). The MOST bus requires the following converter components:

• Optical transmitter
• Optical receiver

Each control unit of the MOST framework contains a transmitter and a receiver. The transmitter and receiver have been developed by BMW. The low closed circuit (rest) current properties of the transmitter and receiver enable optical wake-up by the MOST bus.