This function allows you to create a sequence of midspans for a cable, connecting to cables, splitters or ODF:s that the feeding cable passes. The tool will need input from the user on the feeding cable and the starting node for the cable.
Midspan for cables
The tool will look at each node that the feeding cable pass, excluding its start and end nodes. If the node contains exactly one fiber joint closure or a passive equipment object (normally a modular closure) with other cables attached, it will make a midspan in that node. A midspan means that the feeding cable will be split, both ends will be connected to closure, an appropriate number of fibers from the feeding cable closest to the starting node will be connected to the fibers of the already connected cables.
Midspan for splitter
The tool will look at each node that the feeding cable pass, excluding its start and finish nodes. If the node contains exactly one ODF, fiber split frame or passive equipment object with splitter modules inside it will make a midspan in that node. A midspan means that the feeding cable will be split, both ends will be connected to the equipment, an appropriate number of fibers from the feeding cable closest to the starting node will be connected to the single side of the splitter modules.
Midspan for ODF
The tool will look at each node that the feeding cable pass, excluding its start and finish nodes. If the node contains exactly one ODF or passive equipment object with contacts it will make a midspan in that node. A midspan means that the feeding cable will be split, both ends will be connected to the equipment, an appropriate number of fibers from the feeding cable closest to the starting node will be connected to the contacts of the ODF.
Midspan size and a midspan direction
In Settings > Preferences > tab dpCom , the user can define a midspan size and a midspan direction. The midspan size will be used to determine the number of fibers that will be allocated to connection in each node. Typically the midspan size will be set to the size of tubes or ribbons. This means that allocations will always be made in multiples of the midspan size.
The allocation direction can be set to increasing or decreasing. If set to increasing, the allocation will start from the lowest fiber numbers, if set to decreasing the allocation will be from the highest numbers. However, the connections of the allocated fibers will always start from the lowest numbers. As an example, if midspan size is set to 12 and the allocation direction is set as decreasing, the first allocation of a 48 fiber cable will be the group of fibers 37-48. Assuming that 12 fibers are sufficient for that midspan, the connections of those fibers will start at 37 for the first connection, 38 for the second and so on.
Tubes and ribbons can be ignored by setting midspan size to one, then fibers will be allocated exactly as needed without overhead.
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This function requires the Designer module. |
Prerequisites
•The feeding cable shall have one of its end-points at the selected start.
•The cables that are to be connected to the feeding cable shall be connected to a fiber joint closure object or a passive equipment object (normally a modular closure) in the nodes that the feeding cable passes.
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•The selected feeding cable is a single object. This means that if the selected cable has been split, the scope of the midspan tool will not extend beyond the point of that split. •The tool is targeting a complete midspan design and it assumes that all of the fibers of the feeding cable are available for splitting and connecting in the midspan points. |
Generate midspan
1.Select Autogeneration > Generate midspan > Generate midspan for [cable/splitter/ODF connectors].
2.Select Cable by clicking twice on the selected cable.
3.Select start node.
4.Select OK.
If trying to select a start node or other object than a start node that correspond to another network, an error message will appear.