Connectors on duct segments and fittings allow duct objects (such as duct segments, fittings, and duct MvParts) to form an intelligent system. They are located at each end of the part.
Duct connectors
Duct Fitting Connectors
MvPart connector locations
MvPart and fitting connectors are assigned a connection type. A connector on an MvPart behaves similarly to a duct connector on a fitting or duct segment.
Duct segments do not have connection types assigned to their connectors. They do, however, inherit the connection type of the connected duct fitting.