I am aware that we have 5 License Units on Community Edition. But I have issues figuring out how it's working.
I have Community Edition
USER>write $system.License.KeyCustomerName() InterSystems IRIS Community
Freshly started system, only terminal session open, so, only one license units used, and 4 left. As expected
USER>write $system.License.LUConsumed() 1 USER>write $system.License.LUAvailable() 4
Quote from documentation - $SYSTEM.License.MaxConnections() returns the maximum number of connections a user can make while consuming one license unit.
USER>write $system.License.MaxConnections() 25