Abstract: This paper deals with sensor networking frameworks, namely interconnected fieldbuses and IEEE 1451 smart transducer interface architecture. The contribution begins with interconnected fieldbuses mediating an access from an Intranet to sensors; particularly, coupling architectures are treated both from the viewpoint of more classical interconnections of wide-area and local-are networks, and from the viewpoint of fieldbus domain. Next section of the paper reviews some concepts aimed at connecting sensors and actuators through low-level fieldbuses to Intranets or the Internet. The following section introduces the IEEE 1451 smart transducer interface for sensors and actuators as an emerging, standard-based networking framework. The kernel of the paper deals with the application of the discussed frameworks for a computer-based pressure measurement system as a real-world project, stressing both the intrasystem and Internet connectivity issues.