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d.c. outdoor box












                                             remote
                                          radio head / unit








                                    Profit from our expertise
                                    in developing lightning                                                    telecommunication /
                                                                                                               information technology
                                    protection zone concepts                                                   system

                                    Our decades of know-how in lightning protection
                                    and intensive research activities are key factors for                      utility (230/400 V)
                                    designing lightning protection systems for cell sites.
                                    The primary aim is to prevent lightning damage to an-       base station (radio base station)
                                    tennas, remote radio heads, base stations and power
                                    supply systems.
                                                                                                       power supply
                                    Lightning protection zone concepts for mobile radio stations           unit
                                                                            optical fibre
                                    (or transceiver systems) are based on IEC 62305. This inter-
                                                                            cable
                                    national standard defines the selection and arrangement

                                    of lightning and surge protection measures. It also requires
                                    system operators to perform a risk analysis when installing
                                    a new mobile radio system.
                                    Most of the ground-mounted and roof-mounted mobile          baseband
                                                              48 V d.c.
                                    radio stations are designed according to class of LPS III,   unit (BBU)
                                                              feeder cable
                                    depending on the risk potential and the acceptable risk
                                    of damage. Stations with an increased risk potential are
                                    designed according to class of LPS II or higher.  mast

















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