Intelligent IED servers of the UTX3.x type perform security, telecontrol and telemeasurement functions. Combined with MTX merging units, they create a distributed control and protection system in accordance with IEC61850.
UTX3.x communicates with SCADA systems over the S-bus system network, and communication with MTX merging units, in the case of UTX3.3, is carried out over the P-bus process network. Dedicated Ethernet ports of the P-bus network allow the implementation of fast GOOSE station automation and the redistribution of SV measurement streams in accordance with the IEC 61850-9-2LE standard.