ifc:IfcDistributionPortTypeEnum

<xs:simpleType name="IfcDistributionPortTypeEnum">
  <xs:restriction base="xs:string">
    <xs:enumeration value="cable"/>
    <xs:enumeration value="cablecarrier"/>
    <xs:enumeration value="duct"/>
    <xs:enumeration value="pipe"/>
    <xs:enumeration value="userdefined"/>
    <xs:enumeration value="notdefined"/>
  </xs:restriction>
</xs:simpleType>