Expanding demand for the use of fiber optics (FO) as a field data-transfer solution has led to this company’s introduction of a single-mode FO interface (photo) capable of supporting automation solutions with a range of up to 15 km between field devices — significantly extended beyond the 2.5 km supported by established multimode FO technology. An enlarged actuator terminal compartment simplifies cable connections and the new FO solution can be configured as required. Should the optical signal fall short of its required level, an alarm is transmitted to the DCS via fieldbus. FO cable checks are integrated into the comprehensive self-monitoring capability of the company’s generation two actuator controls. — AUMA Riester GmbH & Co. KG, Mülheim, Germany