Db Power Electronics [P] Ltd. Offers Serial to Ethernet Device. Db Power Electronics [P] Ltd. Is an ISO 9001-2000 certified company. Serial to Ethernet Device is a small microprocessor-based multifunction hardware that can be installed within/outside the UPS. The Serial to Ethernet Device facilitates monitoring of UPS through different systems supporting various networking protocols such as TCP/IP, HTTP and SNMP. The product operates as a server for different monitoring systems.