A telecommunications optical fiber distribution system is disclosed. The system comprises a support structure with an upper end, a lower end, a front side, a rear side, and a longitudinal axis. An input cable carrying an input signal and an output cable carrying an output signal is received into the system through the lower end. A plurality of signal splitters located at the upper end of the support structure split the input signal into a plurality of secondary signals. The system includes a plurality of adapters arranged radially about the longitudinal axis along the front side of the support structure. The adapters connect the secondary signals to the output signal. A cable management structure having portions located both along the front side between the plurality of adapters and the splitters and adjacent the back side manage and direct cables going from the input opening to the splitters and from the splitters to the adapters.