What is Primary Fiber Concentration Point (FCP)?

The feeder cabling will eventually need to convert to smaller distribution cables. This is achieved at the first point of flexibility within the FTTH network, which can be generally termed the Primary Fiber Concentration Point (FCP).

Ideally, the FCP should be positioned as close to subscribers as possible, shortening subsequent distribution cable lengths and hence minimizing further construction costs. 

In principle, the location of the FCP may be determined by other factors such as the position of ducts and access points.

Feeder cable fibers are broken down and spliced into smaller groups for further routing via the outgoing distribution cables.

The FCP unit may take the form of an underground or pole mounted cable joint closure designed to handle a relatively high number of fibers and connecting splices. Alternatively, a street cabinet structure may be used. 

In either case, entry and further reentry into a FCP will be required to configure or reconfigure fibers or to carry out maintenance and fiber testing. This activity must be achieved without any possibility of disturbing existing fiber circuits.

Underground and pole mounted cable joint closures are relatively secure and out of sight but immediate access may be hindered as special equipment is required for access.

For street cabinet based FCPs, the security and protection from vandal attack should be considered. However, immediate access to fibre circuits should be relatively simple.

Note: All fibre termination points within the FTTH network should be treated as points of flexibility in terms of providing fiber routing options.