A plug is configured for latching engagement with a cage. In one aspect of the invention, a data block is processed to generate an address as a function of the contents of the data block, and the data block is then stored in the system in a memory location identified by the address. During transportation by the first conveyor belt, a conveyance area of the longitudinal fiber web segments projects with respect to the side of the first conveyor belt. The cam includes first and second cam paths, with the first cam path disposed between two sides of the second cam path.