Radio-frequency data transport infrastructure intended for the transmission of radio-frequency data to equipment, in a direction "of the downstream flow", and for the transmission of radio-frequency data from the equipment, in a direction "of the upstream flow", including a concentration and configuration box, N optical fibers (400a, 400b, 400c) and S interface boxes, said concentration and configuration box including: - a first device for frequency filtering, configured to, in the direction of the downstream flow, decompose a first signal, called entering signal (RF_in), into N sub-signals, called entering sub-signals (RF_in1, RF_in2, RF_in3), in N distinct sub-bands of frequencies, N an integer ≥ 2, - N modules for converting electric/optical signals (205a, 205b, 205c), each conversion module being configured, in the direction of the downstream flow, to respectively convert an entering sub-signal into an optical signal, called entering optical signal, having a given wavelength (λ 1), said concentration and configuration box being coupled, via the N optical fibers (400a, 400b, 400c), to the S interface boxes disposed in series, S an integer ≥ 2, each interface box including: - N 1x2 optical couplers (306a, 306b, 306c), - N units for converting electric/optical signals (305a, 305b, 305c), each optical coupler being configured, in the direction of the downstream flow, to respectively transmit a part of an entering optical signal to a unit for converting electric/optical signals (305a, 305b, 305c), each unit for converting electric/optical signals (305a, 305b, 305c) being configured, in the direction of the downstream flow, to respectively reconvert an entering optical signal into an entering sub-signal (RF_in1, RF_in2, RF_in3), - a signal recomposition device, called second recomposition device, configured to recompose the entering signal (RF_in) from the N entering sub-signals (RF_in1, RF_in2, RF_in3) obtained by the N units for converting electric/optical signals (305a, 305b, 305c). - a first device for frequency filtering, configured to, in the direction of the downstream flow, decompose a first signal, called entering signal (RF_in), into N sub-signals, called entering sub-signals (RF_in1, RF_in2, RF_in3), in N distinct sub-bands of frequencies, N an integer ≥ 2, - N modules for converting electric/optical signals (205a, 205b, 205c), each conversion module being configured, in the direction of the downstream flow, to respectively convert an entering sub-signal into an optical signal, called entering optical signal, having a given wavelength (λ 1), said concentration and configuration box being coupled, via the N optical fibers (400a, 400b, 400c), to the S interface boxes disposed in series, S an integer ≥ 2, each interface box including: - N 1x2 optical couplers (306a, 306b, 306c), - N units for converting electric/optical signals (305a, 305b, 305c), - N 1x2 optical couplers (306a, 306b, 306c), - N units for converting electric/optical signals (305a, 305b, 305c), each optical coupler being configured, in the direction of the downstream flow, to respectively transmit a part of an entering optical signal to a unit for converting electric/optical signals (305a, 305b, 305c), each unit for converting electric/optical signals (305a, 305b, 305c) being configured, in the direction of the downstream flow, to respectively reconvert an entering optical signal into an entering sub-signal (RF_in1, RF_in2, RF_in3), - a signal recomposition device, called second recomposition device, configured to recompose the entering signal (RF_in) from the N entering sub-signals (RF_in1, RF_in2, RF_in3) obtained by the N units for converting electric/optical signals (305a, 305b, 305c). - a signal recomposition device, called second recomposition device, configured to recompose the entering signal (RF_in) from the N entering sub-signals (RF_in1, RF_in2, RF_in3) obtained by the N units for converting electric/optical signals (305a, 305b, 305c).