The aim of the paper is to present a recent development in the field of communication from the point of view of embedded machine condition monitoring system (CMS). Although the general purpose of CMS remains the same over years, various electronic innovations open new possibilities of enhancement, including lower price, smaller size, larger bandwidth, smaller energy consumption or larger distance for wireless transmission. The paper considers a general notion of an embedded monitoring system, which consists of a sensor, data acquisition and processing unit, storage peripherals, and a communication module for final data destination. For each of these defined parts, a detailed description of possible data transfer protocols and interfaces is given, including popular, and experimental ones.
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