Abstract: A mass fusion splice tray assembly increases the capacity of a splice closure which has support members thereon for supporting the assembly. The assembly include a splice tray which latches to a support member and which has locating slots to contain two splice holder inserts. A cover member has latching legs which latch to wedge shaped latches on the splice tray. The cover member is adapted for pivotally mounting a discrete splice tray on the top surface thereof so that the total splice capacity of the splice tray assembly is increased.

Abstract: A mass splice tray for holding a plurality of optical fiber splices, such as mechanical or fusion type splices for optical fiber ribbons, has a floor and front and rear and end walls defining an interior of the tray. A support shelf extends from the rear wall into the interior, spaced from the floor, for supporting splice holders above the floor at one side of the tray. Extensions on the end walls define, with the rear wall, channels for routing fiber, especially ribbon fibers, into and out of the tray. Splice holder inserts have locating means thereon for mating with locating means in the rear wall to position the inserts on the support shelf, and splice holders are dimensioned to fit within the inserts. The elevation of the splice holders permits routing slack fibers or ribbons within the interior of the tray without interference from the splice holders. Protective tabs extend from the top edges of the walls to maintain the fibers or ribbons within the tray.

Abstract: A splice holder assembly of this invention is used in an optical fiber cable splice closure. The assembly includes a splice tray that is an open-topped enclosure in which is mounted splice organizing modules that hold optical fiber splices. The tray includes retainers that confine optical fibers in a lower portion of the tray, and that also support a card with a list of splice locations and optical fiber identities coupled by each splice. The card supports at least one splice cassette situated inside of the splice tray. The splice cassette includes a bottom portion and a cover. To the bottom portion, at least one splice organizing module is mounted. The cassette's bottom portion also has T-shaped engagements which hold respective protective tubes housing optical fibers, that run between a distribution unit of the closure and the cassette.