GMW GMW3122 PDF

2.1 Scope

of document This document specifies the physical layer requirements for a Carrier Sense Multiple Access/Collision Resolution (CSMA/CR) data link which operates on a dual wire medium to communicate among Electronic Control Units (ECU) road vehicles at normal transmission rates of:l High Speed bus 500 kbitshec l Mid Speed bus 95.2 kbits/sec This document is to be referenced by the particular Component Technical Specification which describes any given ECU in which the dual wire data link controller and physical layer interface is located. Only the performance of the data link physical layer is specified in this document. ECU environmental and other requirements shall be provided in the Component Technical Specification.