A fiber optics system includes a relay rack having network equipment bays inserted therein. A raceway extends over the relay rack for routing fiber optic jumpers to the bays. A spool assembly for absorbing and storing slack or excess length of the jumpers is selectively incorporated in the system. The spool assembly includes a cylindrical spool supported on a mount having an adhesive surface. The adhesive surface attaches to the relay rack in order to attach the spool to the relay rack such that the spool is positioned adjacent to the bays in order to store the slack of jumpers connected between the raceway and the bays upon the jumpers being wrapped over or around the spool. The spool has a radius larger than a minimum bend radius of the jumpers such that the jumpers are not bent beyond the minimum bend radius when wrapped over or around the spool.