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Communication architecture overview

 IED Level

  • Each Bay represents part of Process Bus as HSR ring with embedded RedBox in two PDs connected to Lan-A and


  • PRP is also available.

BAY Level

  • Process bus - PRP topology, Protection and Control devices (PDs & BCUs) exchanging information with MUs & I/Os via IEC61850-9.2LE / IEC61850-GOOSE (process bus) and with Station Level (Station bus)


  • Station bus - PRP topology, via IEC61850-MMS and GOOSE between IED and SAS Workstations