This RS-232 Extender with two converters and RJ45 connectors by Delock can bridge long distances between RS-232 devices bidirectionally and OS independently. The differential transmission technology prevents data errors that can occur caused by external interference or different ground potentials. Additional power supplies on the converters ensure the quality of the data signals. Cable lengths of up to 1200 m are achieved. The RS-232 Extender connects scanners, measurement instruments, machines, computers, IOT devices etc.