Abstract: A cable management rack (10) for supporting and routing pluralities of fiber optic cables (24) to and from optical interconnection sites of stacks of interconnection enclosures (22). First brackets (40) along end frame members (14) enable securing of the cables routed vertically, and also support removable rack cover panels (18). Second brackets (70,70A, 90) include arcuate cable support surfaces (72) for routing selected cables 90.degree. (or 180.degree.) about bends having radiuses great enough to protect the optical fibers of the cables. The second brackets (70,70A, 90) are removably affixable to the end frame members (14) or to intermediate frame members (16) at any location along a columnar array of fastening sites (34) beside the enclosure stacks, to correspond to any desired location of a cable bend, with the rack thus being modular. Relay brackets (110) provide for excess cable take-up.