Telematics – part of S6 Bus messages, accumulating basic information for vehicle telematics purpose.

Specifier – additional field, which is used in description of SPN, which allows to specify the value. For example: Front axle load, number of engine starts at temperatures below zero.

FMS – group of messages used in the implementation of Fleet Management System. Is described in FMS-Standard. In fact is a sample of J1939 message.

FMSII – set of messages taken from J1939, complementary FMS group messages.