The OFS provides a termination point for external optical fibre cables, where they are fusion spliced to pigtails and connected to patch cords, which subsequently connect to transmission equipment. This is achieved in a neat, organized and orderly manner, as a separate guidance system is provided for outgoing patch cord groups, from every 72 or 96 fibre splice/patch subrack.
The OFS allows for growth over time for a suite of equipment racks.
The OFS maintains the MBR for optical fibre cords at 30mm, as it is equipped with a system of cylindrical guides. The OFS allows at one point for: testing cable fibres; service restoration by manually changing fibres used; and fault finding activities. A major feature of the subrack is the minimum amount of movement that occurs to loose tubes and optical fibre cords, as the subrack opens and closes. This ensures a very high degree of protection for working services. Also, the fusion splices and pigtails are located in a protected position, because there is very little chance of them being disturbed when patch cords are being installed, as the subracks tray only needs to be opened a very small amount.