Bentley OpenComms Designer Help

Place FTTP

The Place FTTP command automatically places a network interface device (NID) on each address found within the FTTP boundary and places a drop cable from that NID to the associated network access point (NAP). When selecting the Place FTTP dropdown in the Placement section of the Fiber tab, the following commands will be available:

Clicking the Place FTTP icon will open the Fiber To The Premise dialog which allows the user to define the NID (node) type, the drop cable, XSection, etc. of the drops which are placed while designing with this utility:

  1. Select a Node Type. This device, usually called a NID, is placed on the side of the home for each address.
  2. Select a Drop Cable & Length. The drop is placed between the NID and the NAP.
  3. Select an Address Status.
  4. Select a Xsection to be used with fiber cables.
  5. Select the Splice Type used connecting the NID and NAP.
  6. Select the Fiber Quantity needed to feed each NID.
  7. Select the boundary to execute the FTTP fiber design procedure.

The FTTP Utility requires the following 6 conditions be met:

  1. Link to strand must be on.
  2. Addresses must be linked to the housecounts.
  3. Housecounts must be linked to the poles/peds.
  4. The NAP must have capacity for the number of addresses it is feeding.
  5. There must be an existing ‘FTTP boundary’.
  6. There must be a cabinet placed anywhere within the boundary.

If no drops are being drawn from the NAP to the NIDs n the FTTP module, and the following error displays:

‘No drops processed due to lack of capacity’

…make sure that each splice which will be used as a NAP has the ‘NAP’ checkbox checked in the spec file definition for that splice. (Create a NAP4, a NAP8, NAP12 etc. and you will have the correct NAP to lay out for the exact number of addresses that will be connected).

Note: A designer CAN use NAPs with a defined capacity larger than the number of addresses it is feeding, but NOT a NAP with a defined capacity of LESS than the number of addresses it feeds.