SGC is a network data concentrator that enables totally control of circuit breakers, air break switches and similar equipment by connection to the SCADA system via standard protocol DNP3, IEC60870-5-101 or IEC60870-5-104. The SGC can be equipped with touch screen for additional locally monitoring and control.
A concentrator is the gateway between SCADA and the outstations (substations) in the distribution network. The communication media between SGC and outstations can be realized in many ways with different technics. Smart Grid Networks digital radio is one alternative but more standard IP-based solution via for example fibre, Tetra and 2G/3G/4G can be provided. Also redundant communication solution for increased reliability in the network is possible.