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d.c. outdoor box










                    remote
                 radio head / unit







                                                                           telecommunication –
                                                                           information technology
                                                                           system

                                                                      distribution network operator
                                                                      (DNO) 230/400 V
                                                             base station (radio base station)


                                                                   power supply unit
                                              optical
                                              fibre cable



                                                              baseband
                                  48 v d.c.                   unit (BBU)
                                  feeder cable
                                              mast


       Figure 9.17.3  Remote radio head / unit and radio base station (RBS) in case of ground-mounted masts



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