Description / Abstract:
This SAE Recommended Practice details the Thin Transport Layer of the
Intelligent Transportation
Systems (ITS) Data Bus, which is generally intended for in-vehicle
use.
The Thin Transport Layer sits between SAE J2366-2 and J2366-7. It
provides the handling of such
activities as the packetizing of long messages and message reassembly.
Design of the messages and
headers has stressed economy, in terms of bits within a CAN 2.0B
frame.
The ITS Data Bus (IDB) is a non-proprietary virtual token passing bus,
designed to allow disparate
consumer, vehicle, and commercial electronic components to communicate
and share information across
a standard, open data bus.
This document describes the Thin Transport Layer of the IDB, as shown
in Figure 1.