ISO/TS 10303-1745:2006 specifies the application module for
Signal.

The following are within the scope of
ISO/TS 10303-1745:2006:

• abstraction of signal as categorized according to an ISO or IEC standard;
• information related to functional abstractions of products as commonly specified on data sheets;
• mechanism to associate sets of data that characterize the behaviour of a product with the functional hierarchical model and
  physical geometric model of that product;
• items within the scope of application module Characteristic, ISO/TS 10303-1654.