Before an FTTx plan can be created with the help of the Design Wizard, various preliminary work is necessary:
- Import/connection of source data
- Classification of clusters
- Planning of distribution locations
- Planning of central office / PoP
- Planning of feeder trenches
In addition, all required types/models should be defined before planning. This is made easier with the NET “Master data” tab.
Import/connection of source data
Data that is required for FTTx planning can be imported or connected to the NET using various options. Data can be imported from Excel tables or shape files. DWG files can be permanently loaded as XRef with the project via the XRefLoader.
Excel import of building points
If the demand points of the planning area are available in an Excel table, they can be imported into Map 3D.
Make sure that the table columns have the names of the attributes of the Buildings feature class.
All values of the columns are transferred to the attributes of the feature class.
The GEOM.X and GEOM.Y columns must not be missing. If the demand points have georeferenced coordinates, the building points are created at this point. If the columns are empty, the building points are created at 0.0 (coordinate origin). In this case, the location of the buildings must be subsequently assigned to the records.
Using the corresponding software, addresses can be geocoded, i.e., the coordinate is calculated in a specific coordinate system for an address with street, house number, zip code and city. These coordinates must be transformed into the coordinate system of the project and imported into the Excel table.
If the demand points of the planning area are available in a shape file, they can be imported via a bulk copy to Map 3D.
Connect to the shape file to be imported via the display management.
Click Data and select Connect to data.
Select Add SHP connection, enter a connection name and select the appropriate directory with the shape files.
Select individual or all shape files.
If no coordinate system is displayed for the individual shape files, this must be assigned via “Edit coordinate systems”.
Start the bulk copy by clicking on Data and selecting Bulk copy.
The following dialog opens:
1. Select the shape file as the source on the left side.
2. On the right side, select the industry model in which the objects are to be created.
3. Select the feature class to which the shape file is to be converted.
4. Select the attributes to which the properties should be applied.
5. “Copy now” creates the objects from the shape file.
The following warning will appear and the bulk copy can be canceled.
The result of the bulk copy is displayed.
The layer of the feature class must then be updated/refreshed in the display model. The imported objects are then displayed in the graphic.
Classification of clusters
For the delimitation of individual planning areas, there is the feature class Cluster under “Administration”. Import or digitize closed polygons to enter cluster boundaries.
During this process, it must be ensured that the number of buildings to be connected is selected in such a way that the capacity of the distribution closure is sufficient.
1. The name, a cluster type and a status can be defined for each cluster.
2. The area enclosed by the cluster boundary is automatically displayed.
3. The forms for the buildings, points and lines contained in the cluster can be opened.
4. Cluster statistics can be displayed, a bill of material can be exported, and the status of all subordinate elements can be updated.
In the statistics, the objects are listed according to the feature classes:
1. Information about buildings
2. Listing of points
3. Listing of lines
4. List of fibers and connections
Bill of material
In the bill of material, all feature classes to which a price has been assigned in the type are listed.
The bill of material is opened in an Excel table:
Planning of distribution locations
Starting from the location of the central office, the distribution locations for supplying the individual clusters must be specified. The main distributors are connected to one another and to the central office at the network layer.
Digitize manholes and cabinets to which the distribution closures can be assigned.
A distributor location (manhole/cabinet) must be specified for each cluster.
Enter the designations and attributes for the manholes/cabinets.
Planning of central office / PoP
After specifying the distributor locations, the connection of the central office can be planned. The central office is connected to the distributor locations via trenches, ducts and feeder cables.
Digitize the trenches between the central office and the distributor locations.
A trench must be specified for each distributor location.
Enter the attributes and the occupancy with ducts and/or cables for the trenches.
Planning of feeder trenches
Starting from the distributor locations connected to the central office, the feeder trenches to the street trunks to be connected can now be planned.
Digitize the trenches between the distributor locations and the buildings to be connected.
In order to keep the number of street crossings low, the feeder trenches should be planned along the buildings.
The creation of multi-duct bundles and the associated components (fittings, duct insertions, etc.) in the feeder trenches is started via the FTTx Design Wizard.