PHYSICAL LAYER MANAGEMENT (PLM) IN AN OPTICAL DISTRIBUTION FRAME

摘要

The present invention relates to a tray for use in a subrack of a rack. The tray comprises a printed circuit board configured so that a plurality of connections can be made at a plurality of positions on the printed circuit board, each of the plurality of connections involving at least one connector positioned on a patch side of the plurality of positions and the least one connector having a device associated therewith in which information is stored. Either side of the positions can be used as the patch side, and the devices associated with the connectors involved in making the connections at the patch side can be read via the tray. The devices can be implemented using RFID tags or connection point identifier (CPID) storage devices. A subrack comprises a backplate and at least one tray, wherein the tray can be selectively attached and removed from the backplate.