What is RS-232? Why was RS-232 important? Take our poll and see what others think of RS-232. RS-232 (Recommended Standard 232) was introduced in 1960 for serial communication transmission of data.
Variable frequency drives (VFDs) have become omnipresent in the building automation world. This proliferation of VFD’s is due to two main factors. First, when properly applied to centrifugal fans and ...