This paper presents the distribution system providing the UTC(OP) time and frequency reference signals to the microwave time transfer ground terminal (MWL-GT) of the Atomic Clock Ensemble in Space mission (ACES) at SYRTE. UTC(OP) is generated in the first floor of the building B. The MWL-GT will be installed on the top of the building A inside the campus of Observatoire de Paris, which offers the clearest field of view of the ISS passes. An ensemble of 6 optical fibers and coaxial cables installed between the two locations allows to transmit and monitor the reference signals and to calibrate the delays.
