Use this function when you want to split a route, or a selection of its contents such as cables, pipes and sub pipes. When you split a route an Event node is automatically created at the split point. You may then change the event node into another type of node, such as a manhole.
1.Select Edit > Pipes and routes > Split route.
2.Select the split point by left-clicking the route to give the split position. If you want to select a new split point, right-click to cancel and then left-click again to select a new split point. A red cross indicates the marked split point.
3.When you have selected the split point, press again to confirm. The dialog Select objects to split opens.The dialog displays a tree view of the route and its content. In the dialog, information about ID, Color and Dimension is displayed for the route content. The route in the example above contains pipes containing opto cables. Objects marked for split are displayed in red. Note that the route itself is always marked for split, in red. The containing objects in the route can be selected for split individually by the user.
4.Right-click on an object and select Select for split or Select for split, including underlying objects. Select the latter alternative if you wish to split all optical cables contained in a pipe or sub pipe. Objects marked for split are displayed in red. To deselect objects that have been selected for split, right-click the object(s) and select Deselect for split, including underlying objects.
5.Press Split to perform splitting of selected objects. The objects are split and the dialog window closes. An event node is created at the split point. Every object selected for splitting becomes two separate and discrete objects.
More information
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•Open the attribute form for the event node and give it an ID. It will facilitate for example, branching out documentation, and the connection of multiducts to customer ducts. •To split additional objects in the event node, use the function Split object in node. |
Splitting a cable without content
When splitting a cable that has no fiber objects the Create joint in split dialog opens.
•Press OK to confirm. A joint object is created and connected to the divided cable objects.
•Press Cancel to split the cable into two cables without creating an intermediate joint object.
Splitting a cable with content
When splitting a cable which contains generated fibers, the Split cable dialog opens.
Settings in the Split cable dialog
Split cable and create virtual joints |
Confirm splitting of a cable with fiber content. A joint is automatically created and the fibers from the two cables are spliced together in a straight splice configuration, i.e. each fiber number in cable A is spliced to the corresponding fiber number in cable B, 1 to 1, 2 to 2, and so on.
When a joint is created using the automatic method above, it is termed a virtual fiber joint. A virtual fiber joint do not produce any transmission losses (attenuation).
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Split cable and create joints |
A joint is automatically created in the node and is connected to the cable objects. In the joint, physical joint connections are created automatically (straight splice) between the cable fibers. The joint is of a normal physical type, i.e. it produces transmission losses. |
Split cable but don't create joints |
Split the cable in two parts without creating a joint and connections. The two cables that has been created will run towards the node in two separate routes (piping) |
OK |
Confirms and apply the selected alternative |
Cancel |
Cancel splitting of cable with fiber content. If you have marked the overlying objects (pipe or sub-pipe) of the cable, these are going to be split. |
About virtual joints
The model rules of dpCom stipulates that the whole cable needs to be split, even though when you only want to split a ribbon. To make sure that the remaining fibers (that is not used for the branch), is not to be affected by any transmission losses that normal joints may give rise to, the virtual joints is created instead since a virtual fiber joint do not produce any transmission losses (attenuation).
If you disconnect two fibers that have a virtual joint, they will get normal joints the next time that they will be connected. It is also possible to change the virtual joint to a normal joint by selecting the fiber joint, right click and then select Change subtype in the right click menu.
See also: