This diagram displays the necessary information to support connectors with multiple segment connection points (since KBL2.4).
A Connector_occurrence with multiple segment connection points is still placed as "referenced components" on Nodes. In difference to a "normal" Connector_occurrence it is placed on multiple Nodes (this was already possible in KBL2.3-SR1). In order to support routing algorithms an addition reference between Nodes and Cavities was introduced. This reference can be used to detail the information defined by the "referenced_components" association. This means, if a Connector_occurrence is placed on multiple Nodes, the Nodes can reference which cavities of this Connector_occurrence can be reached via the Node.