Chapter Requirements from R80.40 ReleaseNotes p.32:
SmartEvent Requirements
You can enable the SmartEvent Blade on a Security Management Server, or install a dedicated SmartEvent Server. SmartEvent R80.40 can connect to a different version of Log Server - R77.xx or lower.
SmartEvent and a SmartEvent Correlation Unit are usually installed on the same server. You can also install them on separate servers, for example, to balance the load in large logging environments. The SmartEvent Correlation Unit must be the same version as SmartEvent Server.
CCSP - CCSE / CCTE / CTPS / CCME / CCSM Elite / SMB Specialist