DNP3 (Distributed Network Protocol) is a very popular communications protocol in telemetry systems, with a large number of field devices and control equipment using it. SIs often consider serial device servers, protocol converters, or embedded computers to handle DNP3-related protocol conversions and communications. But, due to their unfamiliarity with the variety of protocols currently in use, SIs are often at a loss to know which option is best suited for their network. In this white paper, we look at the various options available to upgrade serial-based DNP3 devices to Ethernet-based networks and expand on some of the key issues that need to be considered beforehand.