The assigned fixture units of the connector. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
Syntax
Remarks
 Assigned fixture units may be assigned for connectors of some family instances. 
 Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions InvalidOperationException | Thrown when the connector's domain is not DomainPiping. Thrown when the connector is not in a family instance. | 
| Autodesk.Revit.Exceptions ArgumentException | Thrown when set an invalid value. | 
| Autodesk.Revit.Exceptions InvalidOperationException | Thrown on failure to get or set assigned fixture units. |