The networkable annunciators of the series USM provide the functionality and flexibility of the series BSM and add communication interfaces for connection to superior or inferior systems. Through the protocols IEC 60870-5-101/104 and IEC 61850 single and double alarms can be transmitted e.g. to a SCADA system and single and double commands can be received and issued from the annunciator. A smart parameterisation concept ensures that installation and commissioning of the interfaces is easy as never before!
