]> Utility network (100 Mbps fiber WAN) City network (various) 100 Mbps SCADA fiber WAN Substation 2 Automated Substation 3 Substation 4 Substation 5 other substations Automated Historicalserver/enterpriseaccess system Publicutilitydepartment Policedepartment Firedepartment Otherdepartments City WAN SCADA system Substation 1 City Hall Primary controlcenter ITservers Businesssystems IT systems RTU interface Backup/emergencycontrol center