The 3/4U PRIME Ribbon Splice Unit RSU is a pure spliceunitfor up to 288 splices. The splice tray has an integrated splice protector holder for up to 24 heat shrink ribbon splice protectors(8F / 12F). The ribbon fiber feed takes place from the leftand is fully protected. The PRIME-RSU-LE is suitable for PRIME Sub-Rackswith back mounting.