This assembly is used to provide a 100-mm outlet trumpet into optical fibre racks, from 300, 220 and 100mm duct. It can be used to feed optical fibre patch cords into locations where bend radius protection is needed. This often occurs at the side, and top of equipment racks; which present a sharp edge that must be eliminated from the fibre path. It is normally used to provide a break out in existing duct systems, and clips straight into a cut out provided by the cut out tool (Part No: TC1279-231KIT). It requires either: a standard joiner (Part No: TC1279-27) or a slotless joiner (Part No: TC1279248A); which provides a smooth & strong joint.