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Useful feeder cable in FTTH

 

The feeder cabling runs from the Access Node to the first or primary Fiber Concentration Point (FCP). 

 

The feeder cabling may cover a few kilometers distance before termination and will generally consist of larger fiber count cables (100s of fibers) to provide the necessary fiber capacity to serve the FTTH area. 

 

For underground networks, suitably sized ducts will be required to match the cable design and additional ducts considered for network growth and maintenance. 

 

For aerial cable deployment, pole structures with sufficient cabling capacity will be required. Existing infrastructures may be available in full or in part to help balance costs.

 

If smaller ducts or sub-ducts are used then the feeder capacity may be shared or grown using a number of smaller size cables.

 

High Fibre Count Feeder Cable

High Fibre Count Feeder Cable

 

In the case of a PON (Passive Optical Network) the use of passive fiber splitting devices positioned further into the external network may enable smaller fiber counts cables to be used for the feeder portion of the network. 

 

As the decision of using PON or P2P is not always future proof, it is advisable to select a passive infrastructure that can handle both architectures. It is therefore advisable to factor modularity into the fiber count in the feeder cables.

 

 

Related Knowledge:

Filter WDM module

Optical Distribution Frame

What is EPON or GEPON?

The impact of FTTH on society and the environment

What is Secondary Fiber Concentration Point (FCP)?