CBM system måste ha en kommunikation med "smarta" sensorer.

http://ieee1451.nist.gov/

In September 1993, the National Institute of Standards and
Technology (NIST) and the Institute of Electrical and Electronics
Engineers (IEEE)'s Technical Committee on Sensor Technology of the
Instrumentation and Measurement Society co-sponsored a meeting to
discuss smart sensor communication interfaces and the possibility of
creating a standard interface. The response was to establish a
common communication interface for smart transducers. Since then, a
series of five workshops have been held and four technical working
groups have been formed to address different aspects of the
interface standard. The P1451.1 working group aims at defining a
common object model for smart transducers along with interface
specifications for the components of the model. The P1451.2 working
group aims at defining a smart transducer interface module (STIM), a
transducer electronic data sheet (TEDS), and a digital interface to
access the data. The P1451.3 working group aims at defining a
digital communication interface for distributed multidrop systems.
The P1451.4 working group aims at defining a mixed-mode
communication protocol for smart transducers. This family of IEEE
1451 standards is designed to work in concert with each other to
ease the connectivity of sensors and actuators into a device or
field network.