Definition: MOST

(Media Oriented Systems Transport) An in-vehicle, ring-based digital network for up to 64 A/V devices from the MOST Coopertion standards organization. Widely used, MOST supports fiber, unshielded twisted pair and coax cables at speeds of 25, 50 and 150 Mbps. Specifications for all seven layers of the network stack (layers 1 through 7) are provided.

MOST devices include a video display, CD/DVD player, security system, digital radio, integrated cellphone, microphone, amplifier, speakers and GPS navigation. See automotive systems and automotive Ethernet.

MOST Transport Network

The MOST network connects a variety of A/V devices in a vehicle. (Image courtesy of MOST Cooperation.)