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Description / Abstract:
This standard defines the protocol for intercar and intracar
serial data communications between subsystems aboard passenger
trains. It sets forth the minimum acceptable parameters for a
network that can simultaneously handle monitoring and control
traffic from multiple systems. While the network itself is not
vital, it is intended to be capable of carrying vital messages.
This standard will be structured with respect to the OSI
seven-layer model.
Purpose
Astandard protocol will permit systems provided by a
variety of suppliers performing different on-board functions to
share a common communications facility. Car wiring and weight will
be reduced while systems integration, reliability, and
maintainability will be improved.