The PRS-7910 Station Manager is designed for the highest standards of performance, safety and reliability to meet requirements of a complex substation automation system(SAS). As a part of the SAS, it works as a station communication manager or protection management system,which collects, stores and maps signals and protection information of relays, measurement units, control units and other IEDs in the substation to transmit to the higher-level systems such as control center (CC} and distributed control system(DCS}.